- #1
LM741
- 130
- 0
hi all. hope everything is well.
Just some advice please:
want to measure the displacement of a car's shock absorber's piston. Plan on doing this using a linear variable diferential trasformer (LVDT). Those of you that are familiar with such a device, know that its chief operation is based on a change of induced voltage in one of two secondary coils.
the problem: As we all know - the only way we can generate this magniti flux is by creating an AC waveform i.e. the LVDT requires an AC input.
How does one generate this from a car battery (as the device will sit in the shock absorber whislt the car is travelling). There is a device that sort of does what i want - but it does too much: http://www.edn-europe.com/article.asp?articleid=383.
I just want somethig that generates an AC wave from DC..
maybe just a mere DAC?
any feedback would be greatly appreciated!
thanks very much!
John Peter Criticos
Just some advice please:
want to measure the displacement of a car's shock absorber's piston. Plan on doing this using a linear variable diferential trasformer (LVDT). Those of you that are familiar with such a device, know that its chief operation is based on a change of induced voltage in one of two secondary coils.
the problem: As we all know - the only way we can generate this magniti flux is by creating an AC waveform i.e. the LVDT requires an AC input.
How does one generate this from a car battery (as the device will sit in the shock absorber whislt the car is travelling). There is a device that sort of does what i want - but it does too much: http://www.edn-europe.com/article.asp?articleid=383.
I just want somethig that generates an AC wave from DC..
maybe just a mere DAC?
any feedback would be greatly appreciated!
thanks very much!
John Peter Criticos