Reaction Torque Sensors, utilize a strain gauge full bridge configuration that is maintenance free with immovable non-rotating parts that can be used to check residual torque on a fastener.

For example, our compact TAT200 Mini Screw Driver Reaction Torque Sensor, may be used to determine the necessary torque involved to resume tightening and thus overcoming frictional effects of a fastener.

Rotary Torque Sensors employ a freely rotating shaft within a fixed housing. The rotating shaft couple between a driving rotating actuator and load, when the rotating shaft is torsionally stressed, it gives a signal output proportional to the stress. Changes in rotational speed and load affect the torque that is measured.

Applications for rotary Torque Sensors include motor testing, engine testing, dynamometer testing, drive train measurements and gearbox testing.