temp gauge internals

[Huw Powell]

Brett Dikeman wrote:
> 
> Your analysis of the meter is correct; the strip heats up as the
> temperature sensor decreases in resistance when it gets hotter; the hotter
> the sensor, the more current flow.  As the strip warms up, it
> curls(bimetallic, one side expands faster than the other) and the needle
> moves.

really?  wow, and I thought they were (damped) magnet/coil jobs.  Still
having trouble grasping why they would use a bimetal strip like that...

-- 
Huw Powell

http://www.humanspeakers.com/audi/

http://www.humanthoughts.org/