Extremely unusual is right! Are you really trying to measure the angular velocity of a motor shaft by monitoring the vibration of the motor housing?
Sounds like the old days before motocycles had speedometers and riders guessed their speed by the seat of their pants.
LabVIEW Pro Dev & Measurement Studio Pro (VS Pro) 2019 - Unfortunately now moving back to C#, .NET, Python due to forced change to subscription model by NI. 8^{
