Re: coupling coefficient

to: Dan

It's posted in the archives and also in John Couture's Tesla Coil Handbook.
 You use an alternating current of known freq (60 HZ) thru the inductor of
measured inductance and measure the current with the sec connected in first
series, and then reverse connections.  


> From: Tesla List <tesla-at-pupman-dot-com>
> To: tesla-at-pupman-dot-com
> Subject: coupling coefficient
> Date: Monday, August 31, 1998 11:20 AM
> Original Poster: Dan Kline <ntesla-at-ntesla.csd.sc.edu> 
> >Original Poster: "D.C. Cox" <DR.RESONANCE-at-next-wave-dot-net> 
> >
> >to: Jim
> >
> >Even with small coils any type of helix usually results in overcoupling.

> >We prefer a flat spiral and then check the coeff. of coupling using
> >standard techniques.
> [snip]
> All,
> I *should* know this, but I don't, so...
> What are the standard techniques for checking the coefficient of
> Thanks,
> Dan