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Better Data and Performance with Interface Multi-Axis Sensors

The increasing consumer demand for smarter and more sophisticated products is transforming design practices. Data-driven design is now at the forefront of product development and has become the catalyst to the explosion of sensor technology. Engineers require an increasing number of sensors to measure every aspect of their product. In response to this market need, we have developed a family of Interface Multi-Axis Sensors.

The Interface Multi-Axis Sensors measure a multitude of forces and moments simultaneously with a single load cell sensor. These sensors can precisely measure the applied force from one direction with little or no cross-talk from the force or moment. Interface’s  3-axis6-axis, and axial torsion load cells provide excellent performance and accuracy in force and torque measurement.

“Our multi-axis sensors measure forces simultaneously in three mutually perpendicular axes, with the 6-axis load cells also measuring torque around those axes.” Ken Bishop, Custom Solutions Director, Interface

The key advantages of Interface’s Multi-Axis Sensors are three-fold:

  1. The ease in which Interface Multi-Axis Load Cells can be set up and put in use provides a user-friendly experience. The software takes very complicated mathematics and presents it in a simple and understandable format. As an example, check out this quick video to see how easy it is to set up the 6-Axis to BX8-HD44.
  2. Interface products are known for accuracy and performance. The Interface Multi-Axis family of products provides the most accurate and comprehensive data readings on the market.
  3. Longevity is a common problem with most multi-axis Sensor products because of the various angles of stress the load cells endure. Interface products are built to last. The combination of robust design and strong materials ensure that Interface Multi-Axis Sensors remain in proper working order for longer than any similar device on the market.

Interface Multi-Axis Load Cells are ideally suited to many industrial and scientific applications, such as www.interfaceforce.com/solutions/aerospace, robotics, automotive, and medical research (orthopedics and biomechanical). In fact, their unique capabilities are helping the medical industry optimize prosthetic design via multi-axis testing. The automotive industry is using Interface’s multi-axis products in wind tunnels, and the military is using them to test the center of gravity in aerospace applications.

Interface is helping provide crucial data to global product engineers across all industries, which has never been available before. Our Multi-Axis Sensors have become a key component to optimizing designs in complex, multi-faceted products. With the data available today through Interface’s unique test and measurement products, engineers have the freedom to be more innovative in product design and development and meet the demands of consumers.

Read about our latest BX8 8-Channel Data Acquisition System and Amplifier and 6-Axis 6A Series 6-Axis Force and Torque Load Cell

An Interface customer ran into challenges when testing a new car seat by attempting to measure the force with a standard load cell rated at 550 pounds. After applying only 150 pounds of force, the load cells would break. While helping to troubleshoot the issue, Interface realized that the unique contour of the car seat was applying twist pressure that surpassed the standard load cells moment rating. Interface provided the customer with a 6-Axis Load Cell and they were able to measure the force on multiple-axis to optimize the car seat design. This is an example of a unique product development environment in which Interface Multi-Axis Sensors thrive.

By Ken Bishop, Custom Solutions Director, Interface

 

Taking Flight with Interface

When the aerospace industry needs a force measurement solution provider, they’ve turned to Interface for the past 50 years. There is no room for error when it comes to the hardware that keeps airplanes and helicopters safely airborne, and therefore Interface products are the easy choice for Fortune 500 and innovators in www.interfaceforce.com/solutions/aerospace from around the world.

Interface specializes in ground testing for aerospace vehicles. Our products are used in flight simulations, aircraft production, and structural, static and fatigue testing on fuselages and wings. We are the leader in moment and temperature compensation, and a unique differentiator of our load cells is their ability to accurately measure or isolate side loads.

The Interface force measurement standard, modified and custom products that we supply to the aerospace industry typically include:

  • LowProfile™ Load Cells
  • Mini Load Cells
  • Multi-Axis Sensors
  • Calibration Frames

The durability, reliability, performance, and accuracy of Interface load cells are what leads the market.  Unlike others, Interface’s load cells do not lose their accuracy over time. In fact, we just received a calibration order that included some of the very first load cells ever made by Interface. Simply said, our load cells are still on the production floor after 40 years of use.

Our load cells actually demonstrate improvements in performance the longer our customers have them.” – Ashish Desai, Director, Engineering and Technology, Interface

Our precision is the key to our success for aerospace, as well as all our industry solutions. To engineer high-precision load cells, we first start with the flexure. The flexure must be symmetrical, and a great deal of machining art goes into our symmetry process. We have strict control of the process, which also includes making our own strain gages. By maintaining tight control over all processes, Interface can better match the materials that go into the load cells, leading to higher performance.

Each Interface load cell is designed and manufactured at Interface corporate headquarters in Scottsdale, Arizona.  This single location benefit gives customers the added convenience of not needing to accommodate their designs to account for inaccuracies resulting from generic strain gages that are not made in the same place by the best in force measurement engineering and manufacturing.

Interface load cell features are important to the aerospace industry because not only does the longevity of our load cells save our customers money, our precision guarantees that measurements are accurate. One tiny inaccuracy in the measurement of airplane wing’s force capacity can cause critical failures and have devastating effects.

Interface also has all the necessary certifications for working with the aerospace industry including ISO17025, NCSL Z540 and ASTM E74. These standards of excellence demonstrate our ability to serve our customers to the highest degree, on the ground and for taking flight.

Contributor: Ashish Desai, Director, Engineering and Technology, Interface

 

The Basics of Shear and Bending Beams

SSM Sealed S-Type Load Cell

To best understand shear and bending beams, it’s critical to understand the forces they handle. Shear force causes objects to slide from one cross section against another, and this force can easily be seen in several, day-to-day activities. Tasks like using scissors, shaving, painting and scrolling through a touch-screen phone all employ shear force. Conversely, bending force is exactly what it sounds like—an outside force that causes an object to bend. The consideration of both of these forces must be accounted for when building almost anything, including bridges, aircrafts, houses and so forth.

Because these forces play such an integral role in our lives, we need shear and bending beams to measure these forces accurately. Shear and bending beams are straight blocks that are fixed on one end and loaded on the opposite end, but bending beams are more compact. However, although bending beams tend to be more compact overall, shear beams can be designed to be more compact than a bending beam for larger capacity applications.

SSB Sealed Beam Load Cell

From the outside, a shear beam cell might actually look identical to a bending beam cell, but there’s a key difference. Shear beam cells have a large hole that’s bored partially through either side, leaving nothing but a thin, vertical web in the center of the cell. This is different from a bending beam cell, where the large hole in a bending beam passes all the way through. Because shear force is cross-sectional, shear beam load cells offer top-notch stability for lateral forces. Also, shear strains aren’t varied when the point of application moves within a determined range—meaning the electrical signal that converts the force into a numeric value is independent from the point of load application.

For both bending and shear beam cells, weight is placed on the load cell’s spring. The force applied to the spring is then converted into an electrical output by the strain gauge that’s installed on the spring. These beam cells have advantages in their simplicity, as shear and bending beam cells at their core are nothing more than a beam with a strain gauge. These basic components can then be enhanced with additional elements to protect the load cell.

For more information about shear and bending beam cells, please contact us here.