Micro Strain Gauge Torque Sensor, 100-5000Nm

A strain gauge torque sensor measures torque by detecting the strain on a shaft using bonded strain gauges, which convert mechanical deformation into an electrical signal.

The core of a strain gauge torque sensor is to utilize the strain effect and the correlation between torque and strain to achieve measurement. Strain gauges are attached to the surface of the sensor's force-bearing component. When torque is applied, the elastic shaft undergoes torsional deformation. This deformation causes the metal wire of the strain gauge to lengthen or shorten, resulting in a change in its resistance. The strain gauges form a Wheatstone bridge, and the change in resistance is converted into a measurable voltage signal. Finally, signal processing is used to calculate the magnitude of the torque.

Strain gauge torque transducers offer high accuracy, good stability, wide measurement range, and strong adaptability to both static and dynamic torque measurement.