Re: Measuring secondary resonant frequency

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Antonio Carlos M. de Queiroz by way of Terry Fritz <twftesla-at-uswest-dot-net>" <acmq-at-compuland-dot-com.br>

Tesla list wrote:
> 
> Original poster: "by way of Terry Fritz <twftesla-at-uswest-dot-net>"
<Parpp807-at-aol-dot-com>

> << Excite the base of the
>  secondary with a square wave, with a frequency about 20 times smaller
>  than the resonance frequency >>
> 
> I have used the sine wave output of the sig gen to find Fo.
> What is the advantage in using a square wave to find Fo?

In terms of precision, none. To start, the generated signal is much
smaller. But looking at the ringing transients at each transition of 
the square wave you can see what happens when you make changes in the 
environment around the coil without having to search again for the 
resonance with a sinusoidal signal.

Antonio Carlos M. de Queiroz