Contactless Rotary Torque Sensor, Shaft to Shaft, 10-300000 Nm

A rotary torque sensor works by detecting the twisting force applied to a rotating shaft. When torque is applied, the shaft slightly twists, and this deformation is measured using strain gauges attached to it. The strain gauges change their electrical resistance in response to the strain, producing a signal proportional to the applied torque. This signal is transmitted, often through a slip ring or wireless system, to be converted into an electrical output that represents the torque value in real time.

The purpose of a torque transducer is to measure the amount of rotational force or torque applied to a rotating system, such as a motor shaft or gearbox. It helps monitor performance, control torque output, prevent overload, and ensure the efficiency and safety of mechanical systems in applications like manufacturing, automotive testing, and robotics.

To calibrate a rotary torque sensor, first mount it securely and align it properly to avoid side loads. Zero the output with no torque applied, then apply known torque values using a lever arm and weights or a reference transducer. Record the output at different torque levels, both increasing and decreasing, to check linearity and hysteresis. Use these data to create a calibration curve and adjust the sensor’s calibration coefficient if necessary. Finally, verify zero and full-scale readings to ensure accuracy.