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Miniature Torque Transducers 101

The demands for miniature force and torque measurement solutions are on the rise. Modernization of products along with complex, compact products requires small and robust test and measurement solutions.

Miniature torque transducers are small sensors that measure torque, or rotational force, in mechanical systems. They are used to monitor and control the torque output of motors, gears, and other rotating components. These mini transducers come in various sizes and designs, ranging from simple rotary sensors to complex multi-axis sensors. The range of options provide precise, real-time measurements for all types of torque measurement applications.

COMMON USE CASES FOR MINIATURE TORQUE TRANSDUCERS

  • Quality control: In many manufacturing and smart factory processes, miniature torque transducers can provide real-time measurements of the torque being applied by production machines and equipment, allowing for adjustments to be made as needed in instantly to improve product quality.
  • Performance optimization: By measuring the torque output of a motor or other rotating component, a miniature torque transducer can optimize performance, resulting in improved efficiency, longer lifespan, and reduced maintenance requirements.
  • Safety: In certain applications, it is important to monitor the torque being applied to ensure that it does not exceed a certain limit. This is particularly important in safety-critical applications, where excessive torque can lead to equipment failure and potential harm to people and property.
  • Research and development: Miniature torque transducers assist in testing and validating new products, processes, and technologies. By providing accurate, real-time measurements of torque, these sensors can help to improve product design and performance.

Miniature torque transducers are being used in an increasing number of applications, including in the production and design of automotive and vehicle components, for use with machines and lab equipment, in robotics and industrial automation monitoring, R&D of medical devices, and in testing viability, durability and safety of consumer products. Interface’s event, Taking Measure of Miniature Load Cells, explores the topic of using miniature measure devices.

Interface continues to add new types of miniature torque transducers to our expanding line of these sensor types. In fact, Interface has multiple U.S. patents for our MRT products and our proprietary overload protection designs.

INTERFACE MINIATURE TORQUE TRANSDUCERS

Proven by many Interface customers, our miniature torque transducers can provide valuable and accurate measurement data for a wide range of use cases and applications, making them an important device for engineers across all types of industries.

Robotic Surgery Force Feedback Solution Using Mini Torque Transducers

A biomechanical medical device company needs to test the force, torque, and tactile feedback from their robotic arm used for invasive surgery. A number of Interface’s miniature force and torque measurement products are used on this robotic arm. These include the ConvexBT Load Button Load Cell, SMTM Micro S-Type Load Cell, and the MRTP Miniature Overload Protected Flange Style Reaction Torque Transducer. Force results can be collected when connected to the BX8 8-Channel Data Acquisition and Amplifier, and viewed when attached to the a laptop. Read more about the results here.

Furthermore, the demand for miniature sensors is also being driven by the need for more cost-effective sensing solutions. With the cost of miniaturization decreasing, more and more companies are looking to incorporate miniature sensors into their products to gain a competitive advantage.

The trend towards miniaturization is expected to continue in the coming years, which will likely lead to further growth in the demand for miniature sensors including Interface’s miniature torque transducers.

Additional Resources

Anniversary of Interface Miniature Torque Transducers

Choosing the Right Torque Transducer

Flange Style Load Cells and Torque Transducers 101

Insights in Torque Testing Featured in Quality Magazine

 

 

Interface Sensors Used for Development and Testing of Surgical Robotics

Electro-mechanical and software advancements in the medical device and healthcare industry have made all kinds of surgical robotics a reality. Manufacturers and design engineers of these robots come to Interface during the stages of research and development, product engineering and refinement, and testing to perfect surgical use cases. The sensor technologies we provide are preferred in these processes and in final integration due to the fact these devices are highly regulated and require the utmost in accuracy and reliability.

The types of surgeries currently being performed with robotics include what were once considered invasive and a higher risk of failure such as coronary bypass, removing cancer tissue, transplants, laser incisions, and more. With surgical robotics, the medical professionals rely on precision to perform these surgeries with as minimal invasion as possible.

The product development process for surgical robotics is extremely meticulous and requires a wide variety of tests to confirm the accuracy of the product. One of the key components to testing in this field is force measurement. As you can imagine, force plays a massive role in surgical robotics. Every action performed needs to be forced tested to ensure that whatever the surgical task, the robot is doing it with precision.

For surgical robotics, minute forces need to be measured because they are working with highly fragile subjects within a human body. To measure these tiny forces, Interface offers a variety of Interface Mini™ Solutions.  Interface Mini Load Cells are used for light touch, light weight, or for less space. Our miniature load cells provide exceedingly accurate measurements similar to our full-size load cells with proprietary alloy strain gages. They are used in R&D, test and for OEM use in robot components.

All our miniature beam load cells, load cell load buttons, load washer, miniature tension force load cells, S-type load cells, and sealed stainless steel load cells are commonly used based on their capacity and designs.  A variety of our load cells can be used in an off-the-shelf application. Our engineers can also work with you to design custom load cells to fit your exact needs, which is common in robotics.

Interface recently developed an application note to outline how force measurement can be used in testing force feedback using a combination of load cells, torque transducer and data acquisition device on a robotic surgical device.

Robotic Surgery Force Feedback

A biomechanical medical company wanted to test the force, torque, and tactile feedback from their robotic arm for invasive surgery. The surgeon’s movements are mirrored by the robotic arm during surgery, and it was essential all haptic force feedback is measured to ensure safety during invasive surgery. A number of Interface’s force and torque measurement products were suggested for this robotic arm. These includes our load button, S-types, Mini overload protected torque transducers and DAQ instrumentation.  Included below are the roles of each device:

Each one of Interface’s load cells or torque transducers played a part in the ensuring the safety and functionality of robotic arms during invasive surgery. The force feedback that was measured from the robotic arm ensured that the robot used the perfect amount of force when using surgical tools that create incisions during surgeries. It also measured the torque being produced, ensuring the robot arm was moving smoothly and at the right speeds. Read the application note for this surgical robot here.

This is just one example of Interface’s work in robotics, and surgical robotics specifically. There are a growing number of devices used in special, precision surgeries that utilize force to perform its task.

Additional Resources Related to Medical, Healthcare and Robotics

Spotlighting Medical Device and Healthcare Solutions

Medical and Healthcare Brochure

OEM: Medical Bag Weighing

Force Solutions for Medical Tablet Forming Machines

Interface OEM Solutions Process

6-Axis Force Plate Robotic Arm App Note

Force Measurement Solutions for Advanced Manufacturing Robotics