At 10:18 AM 5/31/01 -0600, Rich wrote:
>Andy N1YEW wrote:
> >
> > ok, so how would i do it with a pic?  i assume i would have to measure the
> > decay time and know the resistor value and then compute it and display it.
> >
>
>
>You could make an LR oscillator and measure its period with the PIC  :-)

Actually, any method to measure capacitance could be used to measure
inductance.

Just replace the R-C voltage divider with an L-R voltage divider in the
circuit used.

This would include the single- or dual-slope PIC-pin methods, a monostable
or astable multivibrator or simple impedance voltage divider.

So just find a circuit for a capacitance meter application, and swap L for
C and flip with R.

================================================================
Robert A. LaBudde, PhD, PAS, Dpl. ACAFS  e-mail: ral@lcfltd.com
Least Cost Formulations, Ltd.            URL: http://lcfltd.com/
824 Timberlake Drive                     Tel: 757-467-0954
Virginia Beach, VA 23464-3239            Fax: 757-467-2947

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