Re: 20 joules at 100 bps vs 4 joules at 500 bps

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: Terry Fritz <vardin@xxxxxxxxxxxxxxxxxxxxxxx>

At 02:21 PM 8/15/2005, you wrote:
> .....
>
> So here is the opportunity to measure magnetic fields in a huge 
> dielectric area between the suspended toroid and earth.  A good Hall 
> based magnetometer can measure both DC and AC magnetic fields in 
> cases like this.
>
> Terry, do you have any experience building hall magnetometers for 
> hobbyist?  I've looked for them, but it seems there are no plans or 
> schematics available.  The better commercial ones are very expensive.
>
> Stork

I have never really worked with them.  I seem to remember their 
frequency response was too low for anything I was doing...

The sensors themselves are sold by many places for little money.  I 
don't think it is too hard to hook them up with a little 
electronics.  The fancy ones are calibrated and have linearly 
corrected outputs which is why they cost a lot.

Cheers,

        Terry