Torque sensor test method

Create Date: 2024-8-30 12:03:23|Source: TURCK/TURCK

The mature test method of torque sensor is strain electric measurement technology, which has the advantages of high accuracy, fast frequency response, good reliability and long life.

A special change strain gauge is pasted on the elastic shaft with a strain adhesive to form a strain bridge. If a working power supply is supplied to the strain bridge, the change electrical signal of the elastic shaft can be measured.

Torque sensor test method

This is the basic mode of the torque sensor. However, in a rotating power transmission system, the problem with SUI is the bridge pressure input and the strain signal output detected by the strain bridge on the rotating body. How to reliably transfer between the rotating and static sections is usually done with conductive slip rings.

Because slip rings are in conflict contact, wear and heating inevitably occur, which restricts the speed of the shaft and the service life of the slip rings. Because the contact caused by signal fluctuation is unreliable, resulting in large measurement errors, and even unsuccessful measurement.

In order to overcome the shortcomings of conductive slip rings, another method is to use radio telemetry technology: the torque strain signal is amplified on the rotating shaft, converted into a frequency signal with V≤F, and then through carrier modulation, and then through radio reception, the change signal of the rotating shaft is wirelessly transmitted from the rotating axis to the outward.

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