Thermal Sensor and Load Sensor

Shannen Durphey Shannen at mcn.net
Sat Jul 18 00:40:26 GMT 1998


Dave Williams wrote:
> 
> -> but you can make one from 2 magnetic sensors at opposite ends of the
> -> shaft the phase difference between the 2 sendors will change with the
> -> amount od load on the shaft
> 
>  That'd be some bitchen sensors; you'd need accuracy down to some
> fraction of a degree.  Then there's the problem of mounting the pickups,
> considering both ends of the shaft move vertically, the if it's a live
> axle, there's a horizontal component on the rear joint too.
> 
>  Once you get all that you can start writing some fancy filtering code
> to smooth out the torque variations from the U-joints, the gears in the
> trans and rear end, and the pulses from the cylinders, plus harmonics
> thereof.
> 
But...if you weren't opposed to changing parts, there are both
axles and trans' which have speed sensors in them.  Pretty good
resolution, too.  There'd need to be a synch signal to start
with, I'd think.  That's as far as I'll go with this, though. 
Unable to speak in code.
Shannen



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