Re: [TCML] Tesla coil EM Gauss readings

[Jim Lux <jimlux@xxxxxxxxxxxxx>]

piranha wrote:
> Hi,
>
> Most Gauss meters use Hall effect sensors such as the Allegro A1321LUA-T 
> or DK part 620-1024-ND which they are out of.  But they don't work past 
> 30kHz so not not much help.
>
> If you have a scope, you would be best off just winding a field pickup 
> coil yourself and using the pure physics to calculate the field through 
> the coil that corresponds to the generated voltage (or current if 
> shorted).  A DVM would work too if its AC range had high enough bandwidth.
>
> Terry

You can also calibrate your probe with a pair of Helmholtz coils.. Two 
parallel coils separated by their radius (i.e. 10 cm diameter separated 
by 5 cm).  It has an area in the middle that's fairly uniform field, and 
you can calculate the field by physics, if you know the current.  You 
put an AC current in, stick your probe in, and go to it.


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