Re: Wheel oddmeter sensor (Hall effect etc)

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#2443

From: John Beardmore
Date: Wed, 23 Jan 2002 13:50

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In message <a2l8q7$iqn$1@bunyip.cc.uq.edu.au>, Bushy 
<please@reply.to.group> writes

>: Sounds like a good approach, but what to you mean by the "speedo head"
>?
>
>Actually the speedo itself. Pull it out of the dash, open it up and you
>find the cable turns a magnet that induces a small current in the meter
>winding and causes it to deflect.
>
>On the landrover it is open and the magnet assembly can have a sensor
>pick up it's turning. I mounted the sensor on the inside back case of
>the speedo "head". When it is assembled it is close enough to pick up
>each turn of the magnet assembly giving me two pulses each revolution.
>
>Although at the time I was simply making one good speedo out of three
>duds, the extra bit was a great experiment that has worked well for me
>for three years.

Thanks.


Cheers, J/.
-- 
John Beardmore

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From: John Beardmore <wookie@wookie.demon.co.uk>
Newsgroups: sci.electronics.design,aus.electronics
Subject: Re: Wheel oddmeter sensor (Hall effect etc)
Date: Wed, 23 Jan 2002 13:50:12 +0000
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