Motor shaft instrumentation for torque measurement

A machine manufacturer wants to measure the torque that supports one of its motor shafts.

The most cost-effective solution is to instrument the concerned shaft using strain gauges.

To do this, the following operations are required:

• Receipt of drawing of the shaft to be instrumented.
  
• Manufacturing of two protective half-shells.
• Reception of the shaft to be instrumented.
• Surface preparation in the area where the gauges will be glued.
• Bonding, wiring and closing.
• Theoretical calculation of the output signal based on the diameter of the shaft, its material and the K-factor of the glued gauges.
• Supply of a calibration resistor to facilitate calibration of the indicator.