Measuring torque without slip rings

Unlike traditional slip ring transducers they use a simple non-contact radio link for collecting real-time torque signals, letting machine builders and control engineers can do away with expensive and temperamental slip rings. Thus simply mounting the sensors and checking the radio connection is all that is required for set up.

To achieve the non-contact operation that makes the TorqSense transducer range unique, SAW (surface acoustic waves) devices are used as frequency-dependent strain gauges to measure the change in resonant frequency, caused by strain experienced in the driveshaft. This measurement is directly related to the torque experienced in the rotating machine element. Stand