389Views3Replies

Author Options:

square wave input to lvdt and what are the demodulation techniques for square wave? Answered

Tags:lvdt

Discussions

0
None
Josehf Murchison

Best Answer 5 years ago

If it is an + square wave just add a diode and a cap.
If it is an AC square wave add a bridge rectifier and a smaller cap.

0
None
steveastrouk

5 years ago

LVDTs NEED sinewave excitation if you want a chance of linear outputs.

The standard methods usually use a phase-sensitive detector, but Analog Devices do the AD598, which does the excitation and demodulation for you.

0
None
iceng

5 years ago

The linear variable differential transformer
generates a voltage proportional to displacement of an iron rod
this makes the device a great electronic measuring stick for motion
like a water tank or a plant growth or a sub conscious smile.

A

LVDT2.gif