Torque Sensors

Product portfolio Torque Sensors

High-precision torque sensors – perfect for demanding applications

Althen offers a broad selection of static, rotary, and multi-axis torque sensors. We also develop custom solutions for torque measurement in your unique applications. Our torque sensors fall into two main categories:

1. Reaction torque sensors based on strain gauge technology (DMS)
2. Rotating torque sensors for measuring rotational torque

Piezoelectric reaction torque sensors feature unrivaled overload protection, high signal resolution, and a broad frequency range.They can be used to measure torque even in difficult conditions such as demanding geometries, temperature ranges or dynamics.

Rotary torque sensors are ideally suited for rotating shafts, as well as dynamic and static long term measurements. They are very precise, constructed for maximum stiffness, and are stable at high temperatures. That means you can use rotating torque sensors from Althen for even the most demanding tasks.

Applications with Torque Sensors 

How torque sensors work

Strain gauge technology

Conventional torque sensors use strain gauges. These convert the mechanical torque into an electrical signal. Slip rings are typically used to transfer that signal from the measurement shaft. This tried and tested technology is rugged and reliable. Rugged, high-quality slip rings enable torque measurements over extended periods. They can endure rotating at up to 5,000 or 6,000 revolutions per minute. You need to amplify or visualize the measured signal? Our torque sensors are compatible with all amplifiers and display systems from our portfolio.

Surface Acoustic Wave technology (SAW) for torque measurement

Our cutting-edge alternative to strain gauge technology uses Surface Acoustic Wave devices. This technology is based on an acoustic element that changes its resonant frequency under torsion. Your advantage: Thanks to the quick signal transfer from the rotary torque sensor, you can use these transducers for rotational measurements at up to 30,000 revolutions per minute.

Torque transducers for static applications

Althen not only provides torque transducers for rotating applications – we also offer sensors for static reaction torque. They are also available as miniature versions. These sensors for measuring torque are all based on strain gauge technology. Multi-component transducers are a special type of torque measurement sensors. They measure torque along two or three measurement axes. This allows you to measure torque and static forces along multiple axes.

Analogue signals and digital interfaces for torque sensors

Are you looking for a digital interface for torque measurements? We are happy to design a custom sensor for you that includes a digital interface in addition to the analogue output signal. The digital interface makes reading out the measuring values simple. And it lets you scale each torque sensor to a specific measurement range as required.

Strain gauge measurement amplifiers: Universal precision

For perfect signal processing in torque measurement, we provide a broad range of strain gauge amplifiers. Your systems already provide amplified output signals? You can connect them to our display systems, data loggers, or PC-based measurement data logging systems.

Do you require further assistance? We are happy to help!

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