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Small in Dimension and Precise in Measurement

November 28, 2023/0 Comments/in Blog /by Jamie Glass

The world of force measurement is vast. Interface products are used across industries and in a wide range of applications. From the measurement of minute forces in catheter stint testing to jumbo load cells for massive structural testing of rockets, Interface load cells provide highly accurate measurement no matter the size of the load cell.

One of the many benefits of Interface products is the extensive range of measurement capacities and dimensions we offer, including our Mini Load Cells used for small and precise measurements. Interface Mini™ load cells are ideal for light touch, weight, or limited space test and measurement applications. The Mini Load Cells provide remarkably accurate measurements like our LowProfile load cells. With capacities available as low as 0.11 lbf / 0.5 N and as high as 100 kN, there are various miniature load cells for testing and options for custom OEM solutions.

TIP: Explore your options with our Mini Load Cell Selection Guide

Typical applications for measuring tiny, accurate forces are within the medical, manufacturing, robotics, and consumer product industries.

Medical device manufacturers are working to provide handheld point-of-care devices for patients. Additionally, medical devices used within the human body must provide extremely delicate forces to achieve their intended purpose without harming the patient.

Take something that seems relatively simple, like a vascular clamp. These types of delicate instruments are used on heart valves. If they provide too little force, they cannot do their job. However, providing too much force could severely harm the patient. Medical device manufacturers of these surgical tools use miniature load cells to measure the clamping force to ensure precise accuracy to toe the line between too much and too little force, which is a very precise number.

In the pharmaceutical industry, very small load cells are crucial for accurately measuring the force applied to the pills (tablets) during the press marking phase and other manufacturing processes to ensure consistent dosage and tablet integrity.

With consumer products, precision force measurement is critical to various manufacturing processes and real-time monitoring. A load button load cell is the right size for testing the durability of a smart device by applying a force to the screen and measuring the amount of force the screen can withstand before cracking or breaking. Read: Touchscreen Force Testing App Note

A miniature load cell can measure the force required to open a food package. This information can be used to ensure that the packaging is easy for consumers to open and secure enough to protect the food from damage. In food processing, load cells measure the force applied to food during mixing, blending, and other processes to ensure consistent product quality and prevent damage to the food itself. For instance, load cells can monitor the force applied to a dough mixer to ensure the dough is correctly mixed without becoming overworked or tough.

MINIATURE LOAD CELLS FOR SMALLER, MORE PRECISE FORCE MEASUREMENT APPLICATIONS

CONVEXBT LOAD BUTTON LOAD CELL

The ConvexBT Load Button Load Cell is superior to any other load button. Constructed from heat-treated stainless steel and environmentally sealed with integral temperature compensation. Learn more about ConvexBT on our YouTube channel here: https://youtu.be/l4xEKNjKREw

5 lbf to 1,000 lbf, 22.24 N to 4.44 N
Integral temperature compensation
Enhanced eccentric load rejection
Multi-point calibration
Integral load button
Minimal diameter

SMTM MICRO S-TYPE LOAD CELL

Model SMTM is the miniature overload-protected S-type load cell and is excellent to use where size is a constraint.

Capacity 5, 25, 50 lbf (20, 100, 200N)
It can be used in tension and compression
Micro-sized 3/4” x 3/4” x 1/4”
Excellent temperature compensation (0.005%/°F Temp Effect on Output)
Overload protected

SUPERSC S-TYPE MINIATURE LOAD CELL

The SuperSC is an economical general-purpose load cell with a high force in a compact design. The SuperSC is environmentally sealed and insensitive to off-axis loading. The proprietary form factor is 80% smaller and 50% lighter than other models of s-type load cells. READ: New Technical White Paper Analyzes SuperSC S-Type Miniature Load Cells

25 to 1000 lbf (100 N to 5 kN)
High force in a compact design
Environmentally sealed
High stiffness
Low deflection

ULC ULTRA LOW CAPACITY LOAD CELL

The Interface model ULC is the world’s most accurate ultra-low capacity load cell measuring loads from 0.1 to 2 N (10.2 grams to 500 gmf).

Proprietary Interface temperature compensated strain gages
Highest performance low capacity load cell in the world
Overload protected
Safe side load overload to 5X capacity
Low extraneous load sensitivity
Low-temperature effect on zero (0.002%/°F)
Tension and Compression
5 ft integral cable included

MBP OVERLOAD PROTECTED MINIATURE BEAM LOAD CELL

Model MBP series load cells perform similarly to the famous Model MB series with the added safeguard of internal overload protection.

5 lbf to 10 lbf
Proprietary Interface temperature compensated strain gages
10x overload protection
Low height – 0.99 in (25.1 mm)
0008%F temp. effect on output
5′ Integral Cable (custom lengths available upon request)
NIST Traceable Calibration Certificate

SMALL AND PRECISE MEASUREMENT APPLICATIONS

SPECIMEN RESEARCH

In the medical industry, medical experts need the best equipment to research multiple specimens. In this case, a medical researcher needs to monitor the load force of their linear actuator that uses a needle to collect material from the desired specimen. Interface’s SuperSC S-Type Miniature Load Cell can easily be installed into the linear test stand. A needle with a gripper on the end is installed on the lower end of the SuperSC. As the needle is pushed to collect specimen material, the load feedback is captured using the 9330 Battery Powered High-Speed Data Logging Indicator through an SD card or another laptop. Read: Specimen Research App Note

AIRBAG CONNECTOR TESTING

Testing airbag connectors functionality is needed to ensure perfect deployment in case of a car crash. Eight to twelve connectors are installed in each vehicle, and tests must be made to clarify whether the connectors are working effectively. These connectors usually work when latched, but that does not ensure the electrical properties are performing. The amount of force needs to be tested to see when an electrical current is connected. Interface’s solution is to attach the WMC Sealed Stainless Steel Miniature Load Cell to the actuator of the test rig. The airbag connector is placed at the test rig’s bottom. Forces are applied and measured using the 9330 High-Speed Data Logger as the connector is pushed down to latch together. When connected to a computer, results can be logged, downloaded, and reviewed.

COBOT MONITORING SYSTEM

Collaborative robots, or cobots, are offering more manufacturing operations in the industrial packaging industry. Protective cages or fences are no longer needed for safety purposes, but safety testing is still required to ensure humans and robots can work together. Four 3-axis Force Load Cells (creating one 6-axis Force Plate) are installed between two metal plates at the base of the cobot. Interface suggests installing a 6-axis force plate under the cobot and two ConvexBT Load Button Load Cells in the pinchers of the cobot. If a human were to knock into the cobot or have any object stuck in the pincher, the cobot would sense the force measured from the load cells and be programmed to stop immediately.

Interface can serve a wide range of test and measurement applications from millions of pounds force to the most minute. If you want sensors with small, more precise measurement capabilities, please check out our miniature load cell selection guide.

Interface Load Cells for Press Machines

November 21, 2023/0 Comments/in Blog /by Jamie Glass

Press machines are designed to measure and apply force for various reasons. Hydraulic presses can be used to shape materials or crush objects. Stamping presses make a visible impression or stamp onto materials, such as a pharmaceutical tablet or logo on a food product. Even sandwich presses follow many of the characteristics of more industrial presses.

Press machines are used across automotive, aerospace, construction, consumer goods, medical, agriculture, mining, and other industries. The presses produce consistent, cost-effective quality parts, tools, and products. No matter what kind of press machine, it must undergo rigorous testing during the machine-building process. During operation, there must be continuous monitoring of the press force used in each application.

NEW! Interface Solutions for Machine Builders

Interface load cells are critical to designing, testing, and using accurate and reliable press machinery. Interface load cells come in various shapes, dimensions, and capacities, allowing press machine builders and engineers to find the best solution for their specific machinery use case. Whether selecting a miniature load button load cell for a small press test or our WMC Load Cell to integrate into the machine, Interface has a range of products for press machine applications.

Benefits of using load cells in press machines:

Enhance Operator Safety
Prevention of Overloading
Improve Consistency
Avoid Damage to Equipment
Reduce Waste and Scrap
Increase Quality and Consistency of Work Product
Improve Process Control
Extend the Life of the Machine’s Operation
Increase Productivity

In a press machine test, the load cell is typically placed between the ram of the press and the die, where it can measure the force being applied to the object. The load cell is usually connected to a readout or display showing the operator the force applied to the part or material. This readout may be a simple analog or digital display, depending on the specific press and load cell being used in the machine. Review our Instrumentation Selection Guide to find the best option for your press.

There are numerous options for the types of load cells used for press machine applications. Hydraulic presses are some of the most common presses that use load cells. These machines are often built to form metal parts, such as gears, shafts, and bearings. The construction industry uses presses to assemble and test concrete structures. These presses are designed to crush and process minerals and ore in mining.

Mechanical presses are typically used for high-precision applications, such as metal stamping and forming. Miniature load cells are used in more precise applications that require smaller measurements. These use cases are often reserved for the medical or consumer goods industry, where the goal is to provide a stamping force for medicine or candy to label the product without crushing or damaging it. A precision Interface load cell ensures that the force applied to the material is consistent and accurate.

Another type of press using a sensor is known as a screw press which forms and compacts materials such as plastic and rubber. These press machines are found in chemical, food, and waste processing facilities.

Depending on the measurement capacity needed in the machine’s application, two popular Interface options are the Rod End Load Cells and Mini WMC Sealed Stainless Steel Load Cells. A rod end load cell is typically installed at the end of the piston or ram, where it can measure the tension or compression force being applied during the pressing operation. These load cells provide accurate and reliable force measurement in various presses.

Press Forming and Load Monitoring

Press forming is a method to deform different materials. For instance, materials such as steel can be bent, stretched, or formed into shapes. A force measurement solution is required to monitor the forces being applied by the press-forming machine. This ensures quality control and traceability during the production process. Interface recommended installing the 1000 High Capacity Fatigue-Rated LowProfile™ Load Cell for large press forming machines. When the material is placed under the punch plate to form a shape, the 1000 series load cell measures the force applied. The captured force results were sent to the INF-USB3 Universal Serial Bus Single Channel PC Interface Module, where results could be graphed and logged on the customer’s PC using the provided software. Interface’s force measurement products and instrumentation accurately monitored and logged the force results of the press force machine, ensuring zero-error production performance.

Tablet Forming Machine Optimization

A pharmaceutical tablet producer wanted to monitor the forces the tablet forming machine applied to understand the relationship between raw material, die set, form, force, and the motor’s cycle speed. The goal was to improve the productivity and efficiency of the tablet-forming process while reducing losses (i.e., cracked tablets or voids) by adding a dimension of feedback that could be used to assign specific press adjustment criteria for given inputs. An Interface Model WMC Sealed Stainless Steel Mini Load Cell (10K lbf Capacity) was mounted in the section of the downward press bar. The machine was modified to accomplish this. The load cell was then connected to a Model 9320 Portable Load Cell Indicator to collect the needed data. After analyzing the data, the tablet producer could quantify adjustment levels by monitoring which forces produced optimal results for a given cycle speed, die set, and raw material. The enhancement of the data feedback significantly improves productivity and efficiency.

Candy Stamp Force Testing

Manufacturers of hard-shell candies often stamp text or logos on the candy shells. Stamping too hard breaks the candy shell and stamping too light results in an uneven or incomplete imprint. Using a test apparatus with an Interface Model WMC Mini Load Cell attached to hydraulic actuators was discovered to be an accurate way to measure the compression force required. Engineers determined the specific force needed to properly apply the imprint without breaking the candy shell using this solution.

Using Interface load cells on a press machine is a valuable investment that can help to improve the quality of the products being produced, extend the life of the press machine, and reduce the risk of accidents.

ADDITIONAL RESOURCES

Press Forming and Load Monitoring

Press Load Monitoring App Note

Hydraulic Press Machines and Load Cells

Metal Press Cutting Machine

Interface Solutions for Machine Builders

Force Measurement Sensors are Essential to Modern Industrial Machinery

Interface Solutions Aid Pharmaceutical Industry

September 5, 2023/0 Comments/in Blog /by Jamie Glass

Among the many highly regulated and incredibly complex industries, the medical industry is highly dependent on tools and resources that are precise and measure with high accuracy.

The medical industry is a broad, encompassing hospitals, medical professionals, payers, medical devices and pharmaceuticals. In each sector, Interface has a long history of providing precision measurement solutions for R&D, prototyping, testing, manufacturing, packaging and monitoring use.

In every use case, safety of patients and quality of products is predicated on extreme accurateness. Throughout a pharmaceutical product’s life cycle, specialized measurement equipment and sensor technologies are used by scientists, engineers, researchers, lab technicians, regulators, quality groups and manufacturers. These instruments are utilized in design and maintenance to provide unmistakable evidence of process quality and safety.

Medical and healthcare companies, including those specifically in pharmaceuticals, turn to Interface because our high accuracy force measurement solutions are designed for reliable performance test and measurement projects. The science used in the pharmaceutical industry depends on quality measurement of force and weight. Interface load cells are designed for these types of precise requirements. There is also tremendous demand for Interface’s ability to customize solutions that meet the exact measurement requirements of these sensitive applications. Visit our new Interface Pharmaceutical Industry Solutions.

Interface supports a range of pharmaceutical applications including:

Weighing and distributing
Specimen testing equipment
Tablet hardness testing
Tablet forming machine optimization
Capsule filling machines
Quality control and safety
Mixing
Packaging and filling
Bioreactors and fermenters

Interface force measurement solutions are used for a variety of pharma-related products and machines that help biotechnology and pharmaceutical product engineers to design, test, and manufacture their products. When it comes to equipment used in the manufacturing of medicine, Interface products are used to optimize production and reduce waste. Our miniature load cells are often integrated into machines and equipment to provide precision measurements during operations.

Types of Interface Load Cells Used by Pharmaceutical Companies

Pharmaceutical Tablet Forming Machine Optimization

A pharmaceutical tablet producer wanted to monitor the forces applied by the tablet forming machine to understand the relationship between raw material, die set, forming force, and the motor’s cycle speed. The goal was to improve productivity and efficiency of the tablet forming process, while reducing losses such as cracked tablets or voids, by adding a dimension of feedback that could be used to assign specific press adjustment criterion for given inputs. An Interface WMC Sealed Stainless Steel Mini Load Cell (10K lbf Capacity) was mounted in the section of the downward press bar. The machine was modified to accomplish this. The load cell was then connected to a 9320 Portable Load Cell Indicator to collect the needed data. After analyzing the data, the tablet producer was able to quantify adjustment levels by monitoring which forces produced the most optimal results for a given cycle speed, die set, and raw material. Productivity and efficiency were greatly improved by the enhancement of the data feedback.

Tablet Hardness Testing for Pharmaceuticals

A pharmaceutical producer wanted to test and monitor the hardness of the pills being created in their tablet forming machine. Interface’s SML Low Height S-Type Load Cell was mounted to the hardness device inside the tablet forming machine. The SML Low Height S-Type Load Cell was then connected to the 9870 High-Speed High Performance TEDS Ready Indicator to record the force measurements. The tablet producer was able to verify and test the specific hardness needed for their tablets being produced by their tablet forming machine.

Pharmaceutical Tablet Machine Hardness Calibration

A customer wanted to regularly recalibrate tablet hardness testers. The customer needed a miniature load cell the size of a sugar cube that replaces the tablets and fits horizontally in the tablet test-box. Therefore, a special cable exit was important for the compression only calibration application. In the past, the machines had to be rebuilt for calibrations, or a complex mechanism had to be integrated to enable vertical calibration. However, Interface’s MCC Miniature Compression Load Cell measures forces on its side with a special cable exit on the flat side that attaches to the calibration indicator, such as the Interface handheld indicator and datalogger Model 9330. The MCC load-cell calibration set compared the applied forces with the hardness tester to make sure that the tablet hardness tester uses the correct force for future tablet hardness tests. The BlueDAQ software helped to log and compare the data of the MCC reference load cell. The customer successfully verified and calibrated the tablet hardness tester machine horizontally to conduct accurate hardness testing on tablets in the future. Interface’s MCC Miniature Compression Load Cell was perfect due to its small size, and convenient to measure the forces on its side.

Like medical devices, pharmaceutical machines and products must undergo a variety of mission-critical tests before they are safe for distribution to uses. Interface products are selected by the pharmaceutical industry is due to our product’s accuracy and reliability, in addition to our deep experience in supplying solutions to those in the medical business.

Pharmaceuticals_InfographicPoster

ADDITIONAL RESOURCES

Spotlighting Medical Device and Healthcare Solutions

Force Solutions for Medical Tablet Forming Machines

Interface Ensures Premium Accuracy and Reliability for Medical Applications

Interface Solutions for Medical Devices and Healthcare

Interface Solutions for Safety and Regulation Testing and Monitoring

Accuracy Matters for Weighing and Scales

Advancing Battery Possibilities with Measurement Solutions

July 27, 2023/0 Comments/in Blog /by Jamie Glass

Advancements in batteries have opened new possibilities for the types of cars we drive, products we use in our homes, and even the way we store energy. Force measurement solutions play a crucial role in supporting advancements and innovation in battery technologies, as noted in Advancing Lithium-Ion Battery Test and Measurement.

The primary areas for battery developement utilizing Interface load cells and instrumentation are design, testing, and manufacturing. From structural integrity and safety tests to material testing and optimization, Interface measurement solutions are used for evolving batteries and their applications across many industries.

Interface is a preferred provider of force measurment solutions to the automotive industry, where they have long utilized our load cells and instrumentation for different battery testing. Learn more about our battery solutions for the auto and vehicle industry here.

As batteries become more powerful, ensuring their structural integrity for safety purposes becomes paramount. Our load cells are used to accurately measure the forces during various mechanical stresses, such as compression and impact testing. These measurement solutions can help to assess their robustness and identify potential weak points of the battery structure. Read: Electric Vehicle Structural Battery Testing

Understanding how battery materials respond to forces is critical in optimizing their performance and durability. Testing new materials is critical in developing new battery capabilities and capacities. With the introduction of new battery types, there is a requirement to thoroughly assess the chemicals and materials used in the battery, it’s encasing and the surrounding environment.

Load cells can be integrated into battery testing setups to monitor the mechanical stress on batteries during charge and discharge cycles. Load cells are utilized in thermal testing chambers to measure the mechanical stress experienced by batteries during thermal cycling. Load cells that are designed for high cycle counts for fatigue and stress testing are ideal for this type of measurement.

Interface products are important in the quality control processes of battery manufacturing. By validating the mechanical properties of batteries at different production stages, manufacturers can maintain consistent quality and comply with industry standards and safety regulations. All types of batteries are regulated in many countries to ensure safety, environmental protection, and consumer rights. The specific regulations may vary; however, most batteries are designed to meet the maximum industry standards.

Advancements in battery testing are essential for a wide range of industries that rely on batteries as a crucial component of their products or operations. Some of the industries that heavily rely on battery testing include automotive, particularly electric vehicles (EVs), renewable energy, consumer electronics, manufacturers, aerospace and aviation, medical devices, military, industrial equipment,, transportation and shipping, and maritime.

How are load cells used in battery testing?

The most common types of battery testing include capacity testing, safety testing, environmental testing, and manufacturing quality control. Load cells are commonly used for battery compression tests, impact testing, and thermal expansion and contraction.

Battery Compression Testing

This is crucial to ensure the battery’s structural integrity and safety under different conditions. During compression testing, the battery is subjected to controlled forces using hydraulic or mechanical presses, and load cells placed between the battery and the press measure the applied force accurately. Engineers can analyze the data to determine how the battery deforms and behaves under pressure, helping them design safer and more robust battery packs.

Interface low profile load cells, like our popular 1200 series or through-hole load cells like our precision load washers are often used for compression tests on batteries. Low profile load cells have a flat, disk-like shape and are suitable for applications where the force needs to be applied in a perpendicular direction to the cell’s surface. Through-hole load cells, on the other hand, have a central hole through which the force is applied, making them suitable for applications where the load needs to pass through the load cell. Interface offers a wide range of models including high-capacity, compression-only, precision, and mounting options for our load cells.

Battery Impact Testing

Load cells can be integrated into a machine, drop tower or other testing setups, where the battery is dropped from a specific height to create impact. The load cells measure the impact force experienced by the battery during the fall. This data is vital for evaluating the battery’s ability to withstand sudden shocks and impacts, ensuring it meets safety standards for real-world situations.

For impact testing, high-capacity load cells with a rugged and robust design are preferred. Impact events can generate high forces in a short period, so the load cells must be capable of handling such sudden loads without damage. Interface’s S-type load cells or rod-end load cells are commonly used for impact testing applications due to their ability to measure tension and compression forces accurately.

Battery Thermal Expansion and Contraction Testing

Load cells are used in thermal testing chambers to measure the changes in mechanical stress that occur within the battery as the temperature fluctuates. By analyzing how the load on the cells changes with temperature, engineers can assess the battery’s performance and structural stability under different thermal conditions, which is critical for battery design and optimization.

In thermal testing applications, miniature load cells often used. Miniature WMC load cells are compact and can be easily integrated into small spaces within thermal chambers. Strain gages offer excellent sensitivity and are suitable for measuring small changes in mechanical stress that occur during thermal expansion and contraction testing.

Read EV Battery Testing Solutions Utilize Interface Mini Load Cells

Interface Force Load Cell Considerations Used for Battery Testing

Capacity: Choose a load cell with a capacity that covers the expected force range during testing. Ensure that the load cell can handle the maximum force that might be applied during compression, impact, or thermal testing.
Accuracy: Look for load cells with high accuracy and low hysteresis to ensure precise and repeatable measurements, especially when evaluating the mechanical properties and behavior of EV batteries under various test conditions. Interface is known for accuracy in measurement. All specifications related to the accuracy are available on each product’s datasheet.
Model Design: The load cell’s form factor should be robust and durable to withstand the demands of testing. A rugged design, preferrably stainless steel, is essential for impact testing and to ensure the load cell remains stable and reliable throughout the testing process.
Compatibility: Ensure that the measurement device is compatible with the testing equipment and data acquisition system being used in the battery testing setup. Interface will work with you in selecting the right sensor, instrumentation, cable and any accessories based on your test plan.
Calibration and Temperature Compensation: All Interface load cells have calibration certificates. The temperature compensation features are outlined in the model specifications. Accurate calibration and temperature compensation are vital for obtaining reliable and accurate force measurements, especially during thermal testing.
Application-specific features: Depending on the type of battery testing, certain load cell features, such as high-frequency response for impact testing or low profile designs for compression testing in confined spaces, might be beneficial. Discuss with our application engineers if you have questions on selecting the right products.

Overall, advancements in battery testing have far-reaching implications across various industries, enabling the development and deployment of safer, more efficient, and higher-performing battery technologies, which are essential for the ongoing transition to a sustainable and electrified future. To learn more about solutions that Interface has supplied for battery testing, and affiliated components used in the advancements of batteries, contact us. Our solutions team is ready to help.

Additional Resources

Electric Vehicle Battery Load Testing Feature and Application

Feature Article Highlights Interface Solutions for EV Battery Testing

EV Battery Testing Solutions Utilize Interface Mini Load Cells

Advancing Lithium-Ion Battery Test and Measurement

Electric Vehicle Structural Battery Testing App Note

Electric Vehicle Battery Monitoring

Interface Powers Smart Transportation Solutions

Force Measurement Enables Precision Drone Aerial Displays

July 4, 2023/0 Comments/in Blog /by Jamie Glass

Many of the largest outdoor celebrations around the world are utilizing drone technologies quipped with LED lights working in complete unison to create amazing displays. From coronations and holidays to world sporting events, these incredible lighted airborne spectacles are growing in scale, design and capabilities.

The use of drones for aerial displays are on the rise. Swarms of drones offer new possibilities for creating captivating light shows and visual displays that can accompany or even replace certain aspects of traditional fireworks. They offer a unique aerial perspective by flying at various altitudes and angles. They can be programmed to create specific patterns, shapes, and movements in the sky, allowing for more intricate and tailored displays. Drones can also be equipped with different lighting effects and colors, offering a wide range of visual possibilities.

Drone shows provide stunning visuals and add a new dimension to sky visual arts; however, safety is still primary in design and use. Though drones can be programmed to fly predefined paths and execute specific maneuvers, ensuring that they stay at a safe distance and do not provide risk or harm is critical to use.

Safety and regulation of a flying object is determined by the location and governing bodies. As increased visual arts using drones grows, testing and design is paramount to ensure these objectives are met and held to standards for sake of the manufacturer, operator and the viewing public.

How does Interface take part? Sensor technologies have a big hand in making drone and areial displays due to the necessity of force measurement in designing and evaluating the drones for the launch, precision movements, lighting effects and descent. Interface products are used by drone manufacturers to design these flying machines to conduct different tasks, from deliver packages as well as for testing motor torque and center of balance.

Due to Interface’s experience in supplying measurement devices for aerospace, automotive, industrial automation, we have several load cells, miniature transducers and instrumentation solutions perfect for use in drone application. Our wireless sensors and digital instrumentation are particularly attractive to drone makers because they eliminate the need for wires and facilitate real world testing. For more unique applications, Interface also offers custom solutions and can work with the original equipment manufacturers to understand their specific needs and deliver a sensor suited for those needs.

The use of drones for creating light shows has become a safe and more environmentally friendly alternative to fireworks, often being used at big venues across the country. Force sensors are used in the testing of these types of drones to ensure they can manage the weight of the equipped LEDs.

Drone Show Application

Drone fireworks have become increasingly popular in recent years. During drone firework and light shows, drones are equipped with LED lights, flying in synchronized patterns to create displays in the night sky. A force measuring and monitoring system is needed for the weight of the LED or the forces generated by fireworks explosions.

Interface suggested four of its WMC Sealed Stainless Steel Miniature Load Cells, which were installed to the necessary propeller motors measure the attached LED lights. Each were connected to a WTS-AM-1E Wireless Strain Bridge Transmitter Modules. The WMC’s measure the weight of the LED lights to monitor weight shifting or any uneven weight distributions. Data results were wirelessly transmitted directly to the customer’s laptop through the WTS-BS-4 Wireless Base Station, or to the WTS-BS-1-HA Wireless Handheld Display for Multiple Transmitters. The four WMC load cells accurately measured and monitored the weight of the attached LED light and maintained stability of the propeller motors to when the drone was in air performing the fireworks show.

Interface, a US manufacturer of force measurement solutions, will be closed on July 4th. We will resume our normal business hours the following day.

Rod End Load Cells 101

May 25, 2023/0 Comments/in 101 Series, Blog /by Jamie Glass

Rod end load cells are designed to measure the tension and compression forces applied to a rod or similar structure. This type of load cell consists of a rod with a threaded connector. The load cell’s strain gage measures the deformation caused by the applied force. As the force is applied to the rod, it deforms slightly, causing a change in the electrical resistance of the strain gage.

To provide a complete analysis of the forces being applied to the structure, rod end load cells are often used in pairs, with one load cell measuring tension and the other measuring compression.

Interface Rod End Load Cells utilize proprietary temperature compensated strain gages for high-accuracy measurement. For example, our popular REC Rod End Load Cell is fatigue rated and designed to go up to 100,000,000+ fully reversed cycles which makes them ideal for test article failure tests. Our REC models are resistant to off-axis and impact loading with performance to .04%. They are environmentally sealed and made of stainless steel. They are easy to integrate in actuators.

Rod end load cells are commonly found in test labs and used in industrial environments, mechanical systems, and testing machines. They are adaptable and reliable force measurement devices utilized for applications in various industries.

Common Rod End Load Cell Use Cases

Material Testing: Rod end load cells are widely used in material testing applications, such as tensile testing, compression testing, and fatigue testing. They help measure the applied forces accurately and provide data for analyzing material properties, structural integrity, and performance.
Machine Force Monitoring: Rod end load cells are used in industrial machinery to monitor and control forces applied to rods, shafts, or other structural components. They help ensure that the machinery operates within safe load limits, preventing overloading and potential failures.
Hydraulic and Pneumatic Systems: Rod end load cells are employed in hydraulic and pneumatic systems to measure the tension or compression forces experienced by cylinders, pistons, or actuators. This enables accurate force control and monitoring for proper system use.
Robotics and Industrial Automation: Rod end load cells are integrated into robotic systems to measure the forces exerted by robotic arms or grippers. This allows for precise force control, feedback, and safety features in tasks such as assembly, material handling, and force-sensitive operations.
Calibration and Test Lab Equipment: Rod end load cells are utilized in calibration and testing equipment, such as force testers and dynamometers. They provide reliable and traceable force measurements, ensuring the accuracy and calibration of the testing instruments.
Aerospace and Automotive Industries: Rod end load cells find application in both aerospace and automotive industries for various purposes, including component testing, structural analysis, quality control, and safety testing. There are many use cases to rod end load cells for multiple industries, as found in our application solutions.
Research and Development: Rod end load cells are used in research and development activities across different fields, enabling precise force measurements for studying material behavior, product development, and prototype testing.

Drone Fireworks Rod End Load Cell Application

Drone fireworks have become increasingly popular in recent years. During drone firework and light shows, drones are equipped with LED lights, flying in synchronized patterns to create displays in the night sky. Four rod end styled Interface WMC Sealed Stainless Steel Miniature Load Cells are installed to the necessary propeller motors measure the attached LED lights. Each are connected to a WTS-AM-1E Wireless Strain Bridge Transmitter Modules. The WMC’s measure the weight of the LED lights to monitor weight shifting or any uneven weight distributions. Data results are wirelessly transmitted through the WTS-BS-4 Wireless Base Station.

Interface offers a wide range of rod end load cells. The following highlights our standard models for this type of load cell. Customization is an option if a rod end load cell is needed to be designed into machines or used as a component within a specific product.

Interface Standard Rod End Load Cells

REC Rod End Load Cell stainless steel mini with capacities from 1K to 50K lbf (5 kN to 220 kN).

WMC Rod End Load Cell industrial grade rod end type has capacities 15K to 200K lbf (65 kN to 900 kN).

WMC Sealed Stainless Steel Miniature Load Cell environmentally sealed in capacities from 5 to 500 lbf (22 to 2200 N). Submersible versions also available.

WMC Sealed High Capacity Stainless Steel Miniature Load Cell ranging from 1K lbf to 10K lbf (5 kN to 45 kN). Submersible versions also available.

WMCP Overload Protected Stainless Steel Miniature Load Cell With Male Threads is an excellent safeguard in rugged applications with capacities 1.1 to 2.2 lbf (500 to 1000 gmf).

WMCFP Overload Protected Sealed Stainless Steel Miniature Load Cell With Female Threads in 1.1 to 2.2 lbf (500 to 1000 gmf) capacities are stainless steel, sealed, and environmentally protected.

WMCF Miniature Sealed Stainless Steel Load Cell is an industrial design with capacities from 5 to 10 lbf with female threads.

MTFS Miniature Tension Force Load Cell is a small sized tension load cell available in capacity ranges from 1 kN to 100 kN (224.8 to 22.5K lbf).

NEW! ITCA Tension And Compression Load Cell is ideal for measuring both tensile and compressive forces 2.2K lbf to 330.6K lbf (1 MT to 150 MT). The standard metric threads at each end of the load cell are designed to accept standard spherical seating rod-end bearings. Customization is available.

Benefits of Interface Rod End Load Cells

#1 High accuracy: Our rod end load cells provide high accuracy in measuring the tension or compression force applied to a rod or similar structure. They are capable of measuring very small changes in force, making them suitable for precise measurement requirements and applications.

#2 Range of measurement and dimensions: Interface rod end load cells are available in a wide range of measurement capacities and compact size making them suitable for use in a variety of industrial and mechanical applications.

#3 Durability: Rod end load cells are designed to withstand harsh environments, high loads, and repetitive use. They are made from ruggedized materials, stainless steel or aluminum, so that can withstand exposure to moisture, dust, and other environmental factors.

#4 Versatility: Rod end load cells can be used in a variety of applications including material testing and manufacturing processes. They can be easily integrated into existing actuation systems and are compatible with a variety of instrumentation and control systems.

Rod end load cells, as highlighted in our recent Testing Lab Essentials Webinar, are used in applications that involve the measurement of tension or compression force on a rod or similar structure, such as in material testing or in the calibration of testing machines.

Hydraulic Press Machines and Load Cells

April 11, 2023/0 Comments/in Blog /by Jamie Glass

A hydraulic press is a machine that uses a hydraulic cylinder to generate a compressive force by applying a fluid, typically oil, to a piston. The hydraulic press works on the principle of Pascal’s Law, which states that when a fluid is subjected to pressure, it transmits that pressure equally in all directions.

Load cells are commonly used in hydraulic presses to measure the force or weight of the load that is being applied to the press. Load cells are essentially transducers that convert a mechanical force into an electrical signal. Load cells play a critical role in ensuring the safety, quality, and efficiency of hydraulic press operations, as they allow operators to monitor and control the force being applied to the workpiece with a high degree of accuracy and precision.

In a hydraulic press, the load cell is typically placed between the ram of the press and the die, where it can measure the force that is being applied to the workpiece as defined in our Press Forming and Load Monitoring use case. The load cell is usually connected to a readout or display that shows the operator the amount of force being applied to the workpiece. This readout may be a simple analog or digital display, depending on the specific hydraulic press and load cell being used in the machine.

Hydraulic presses are widely used in manufacturing industries such as automotive, aerospace, construction, and consumer goods. They are used for applications such as metal forming, punching, stamping, bending, and assembly. The presses are used to produce consistent and high-quality parts in a cost-effective manner.

Popular load cells for hydraulic presses are Interface’s Rod End Load Cells. In a hydraulic press, a load is applied to a piston or ram using hydraulic pressure, and the force generated by the press is used for various forming, shaping, or compression processes. A rod end load cell is typically installed at the end of the piston or ram, where it can measure the tension or compression force being applied during the pressing operation. The data acquired from the rod end load cell can be used for a variety of purposes, such as monitoring the force applied to the press to ensure that it is within the desired range, controlling the press operation, or capturing data for quality control or process optimization purposes. Rod end load cells provide accurate and reliable force measurement in hydraulic presses.

Interface Rod End Load Cell Models:

Load cells used for hydraulic presses typically have a high accuracy and sensitivity, as even small variations in the applied force can have a significant impact on the quality and consistency of the resulting workpiece. They are also designed to withstand the high forces and pressures that are typically involved in hydraulic press operations. There are numerous applications and use cases for hydraulic press testing, including:

Automotive and Aerospace Manufacturing: Hydraulic presses are used extensively in the manufacturing of automotive and aerospace components, where they are used to form and assemble various parts. Testing the press is important to ensure that it can handle the high forces and pressures involved in these applications.

Material Testing: Hydraulic presses are commonly used in material testing applications to test the strength and durability of various materials such as metals, plastics, and composites. The press can apply a controlled and measured amount of force to the material being tested, allowing for accurate and repeatable testing results.

Metal Forming: Hydraulic presses are often used in metal forming applications such as stamping, punching, and bending. It is important to test the press to ensure that it can apply the required force and that the resulting parts meet the necessary specifications. Read more in our Metal Press Cutting Machine application note.

Construction: Hydraulic presses are used in the construction industry for applications such as concrete forming and brick laying. The presses are used to apply a controlled amount of force to the concrete or bricks, ensuring that they are formed to the correct shape and size.

Recycling: Hydraulic presses are used in the recycling industry to compact waste materials such as cardboard, plastic, and metal. The presses are used to create dense bales of these materials that can be more easily transported and recycled.

Rubber and Plastic Molding: Hydraulic presses are also used in rubber and plastic molding applications, where they are used to form complex shapes and designs. Testing the press is necessary to ensure that it can apply the required force and that the resulting parts meet the necessary specifications.

Hydraulic presses are used in a wide range of industries and applications where a controlled and precise amount of force is required. They are used to produce high-quality parts and products in a cost-effective manner, while also ensuring safety and efficiency in the production process.

ADDITIONAL RESOURCES

Metal Bending Force

Press Forming and Load Monitoring

Interface Solutions for Material Testing Engineers

Tensile Testing for 3D Materials

Testing Lab Essentials Webinar Recap

OEM: Tablet Forming Machine Optimization

Stainless Steel Load Cells 101

September 20, 2022/0 Comments/in 101 Series, Blog /by Jamie Glass

Different materials are used in designing and building force sensing products based on the environmental conditions. The choice of materials is important when considering specifications, test and measurement environment, and use case. One of the best metals for keeping environmental factors away from the electronics of a load cell is stainless steel.

The three main metals used in making load cells and other force sensing products is aluminum, steel, and stainless steel. The output signal performance for stainless steel load cells is in the middle of steel and aluminum standards.

The main benefit of stainless steel is the fact it is the best material to use in a corrosive environment because of the metal’s environmental resistance properties. The downside to stainless steel is that it is a bit more difficult to machine; however, it does only require a simple heat treatment process. It is also the most expensive metal of the three and has the highest hysteresis.

Why choose stainless steel over the more cost-effective steel and aluminum options, especially when it is not the strongest or provide the best signal output? Interface recommends stainless steel when the user needs to collect data from a load cell in a hazardous environment or under harsh conditions.

Interface offers stainless steel sensors as part of our hermetically sealed ruggedized load cell product lines. We make stainless steel load cells of all sizes and capacities, including stainless steel miniature load cells, load washers, and customized load pins. Using stainless steel not only keeps users safe, but it also allows for high-quality, accuracy and reliability in extreme environments.

These specialized load cells and force measurement solutions are designed and manufactured so that our products are safe for use in hazardous gas and dust environments when installed per applicable installation instructions. These components play an integral role in the safety of those working in dangerous environments in particular industries like oil and gas, mining, aerospace, automotive and more.

Some of our stainless-steel load cell options include:

To help keep individuals and workplaces safe, manufacturers create tools and equipment that are protected from the elements in these environments and will not expose electronics to hazardous environments. Interface’s contribution to this is our ruggedized load cells, many of which are made with stainless steel materials due to its strength in these harsh environments. We also carry a specialized line of intrinsically safe products.

There are hundreds of thousands of engineers and manufacturers that design solutions for or work in hazardous environments. Whether its operating inside of facilities with large machines with intricate moving parts, working hundreds of feet in the air repairing a bridge, or deep within a mine shaft, these professionals put themselves in danger every day by the nature of their work. The solutions they use to measure force must provide the type of specifications that are suited for these types of conditions.

To learn more about these products, join the conversation Ruggedized Solutions for Test & Measurement, where we discuss:

Defining Ruggedized
Environmental Stresses and Harsh Condition Categories
Standards and Ratings
Structural and Material Options
Ruggedized Test and Measurement Devices
Sealed Products and Enclosures
Extreme Temperatures and Cycling
Exposure to Moisture and Submersibles
Test and Measurement Applications Using Ruggedized Products
Do’s + Don’ts
FAQs

This is a live event that takes place Tuesday, November 15, 2022. To register or get a copy of the recorded event, go here.

Back to School Force Measurement Essentials

September 13, 2022/0 Comments/in Blog /by Jamie Glass

Interface has a long history of collaborating with colleges and universities around the world. From individual engineering students testing the force of launching miniature rockets to supplying onsite test labs with load cells and equipment for R&D, we are a resource for higher education learning and experimentation.

In our view, innovation and exploration have no boundaries. What validates new ideas and manifests problem solving requires modern and reliable tools that support student’s projects and activities. Its key to any program’s success. It is also why we are proud to be known around the globe as a leader in building and designing force measurement products that facilitate these initiatives through higher learning.

It is very inspiring to see new engineering students, future metrologists, and soon-to-be graduates designing new medical devices, creating new spacecraft and interplanetary vehicles, testing materials used for miniature consumer products and of course, building plenty of new robots and AI machines.

In our view, every university or college should have Interface force measurement products on hand to support these types of educational test and measurement research projects. Here is a simplified list of basic sensor products to get started.

Force Measurement Essentials for Higher Learning

Precision load cells in diverse designs and capacities
S-type load cells (load beams)
Miniature load cells and load buttons
Multi-axis sensors
Calibration grade equipment
Instrumentation
Wireless sensor technologies
Rotary and reaction torque transducers
Verification load frames

Our investment in supporting educational programs runs deep into our history as a company. You will find our founder’s name on the Richard F. Caris Mirror Lab at The University of Arizona. Following in his commitment to education, the Richard F. Caris Charitable Trust II continues to support STEM programs including sponsorship of the International Science and Engineering Fair (ISEF).

We drive to ensure that students who have a passion for science, technology and engineering have access to the best force measurement sensor technologies. It is why we offer a standard discount to all students and education institutions. You can learn more about our education support here. We know that learning requires the best tools, and we want to make sure that every student has the most accurate, quality and precision load cells available today.

As with all inquisitive minds, we thought it would be interesting to share what are other university and colleges buying for their learning programs and campus labs.

Top 10 products for testing projects and campus lab studies:

1200 LowProfile Load Cells are our most popular load cell, available in standard and high-capacity features.
1010 Load Cell model is a fatigue-rated low profile load cell in our 1000 product family, offering various capacities and functions.
2420 Load Cell is one of our stainless-steel standard and high-capacity load cells in our 2400 model series.
1500 Low-Capacity Load Cell designs are common requirements for applications where low sensitivity to eccentric load is important.
WMC Sealed Stainless Steel Miniature Load Cell has an environmentally protected construction that comes in a variety of model capacities and configurations. It is great for small spaces and industrial applications.
3-Axis Load Cells are extremely popular multi-axis sensors designed to provide more testing data and often paired with BSC4 instrumentation. They are ideally suited for aerospace, robotics, automotive, and medical research testing applications.
6-Axis Load Cells are growing in popularity, for cost benefit and their unique ability to simultaneously measure Fx Fy Fz Mx My Mz.
SSM Miniature Load Cells are one of many popular general-purpose s-type designed load cells. You call learn more about all our s-type models here.
Torque Transducers of all types are used by university programs, engineering departments and metrology labs. There are many different options including rotary and reaction torque solutions. For all options, start here to choose the right one.
Load Washer Load Cells are used because of the unique through-hole designs. They come in various models and dimensions, along with capacity options.

As with any project, the questions of what you want to measure, the applications, and where you are sending the data, are all core to choosing the sensor and instrumentation that is best suited for the learning environment or program.

Speaking of where to send the data for performance monitoring and analysis, the five most favorite types of instrumentation selected by university students and engineering labs include:

If you are heading back to school and thinking that it is time to revamp the testing lab or need new force measurement equipment, be sure to reach out to our education application engineers. They have years of experience and can help you get exactly what you need for your project and programs.

Be sure to tune into our Load Cell Basics, for answer to common questions about using these highly accurate sensors for your test and measurement projects. You can find all our Interface videos on our YouTube channel here.

If you are looking to explore more technical resources, be sure to go to our online support area and subscribe to our blogs for weekly updates.

ADDITIONAL EDUCATIONAL RESOURCES

Types of Force Measurement Tests 101

Torque Transducers 101

Multi-Axis Sensors 101

S-Type Load Cells 101

Mini Load Cells 101

Force Measurement Instrumentation 101