Thread: Guessing Game: What is this called and what is it used for?

Originally Posted by Fondles

The obvious is some sort of testing/calibration machine but for what I don't know

it is a wobulator

for analog vibration probes on rotating machinery , which means mostly compressors - bently nevada gear is the electronics normally - the probes are basically analog proximity sensors.

there is a micrometer on the disc which you use to set the amount of wobble

but as accelerometers have gotten better , most gear with vibration sensors comes with them - and you use a shaker table to check them