DIY Encoder for RPM and Torsion Vibration Analysis

Torsion vibration can be difficult to detect in rotating machinery as vibration occurs in a rotating component or drive train. Torsion vibration may result in equipment damage as loads increase and machine internal timing is affected. This post is about optic sensors and the use of a Do It Yourself (DIY) encoder to detect torsion vibration. A tacho signal can consist of one or more pulses per revolution. It can be picked up using e.g. a rotary encoder placed at a free shaft end, magnetic or optic sensors for the purpose of torsion analysis. Torsion analysis can be made using other...