Re: The Hall Effect

["Matt Rooke" <mrooke@fcpa.fujitsu.com>]

>Be> Since my '90v8 is under warranty I'll definitely have them check out
 >Be> the Hall Sender. (BTW what is a hall sender?)
>
>     I believe the true nature of the name "Hall Sender" comes
>     from the movie the "Paper Chase", (remember the mysterious
>     law student who screams in the hall but is never seen) which
>     is similar to the reaction of Audi owners who run into the
>     hall to scream when they find out that you can't buy just
>     the $25 "hall sender" but have to buy the whole distributor
>     for $280.

Umm, good try, and maybe more appropriate than the right answer...
The Hall effect is what happens when you move a magnet past a properly aligned electrical coil- you get a voltage at the
terminals of the coil.  Now if that magnet is attached to a rotating shaft, you can measure the speed of the shaft
rotation by the frequency of the electrical pulses from the coil.

Matt Rooke
'91CQ