Jake Brakes & dynos

[Gordon Couger]

>>From: "Robert J. Harris" <bob at bobthecomputerguy.com>
>>>They fit in the driveline - after the transmission - sort of like an
>>>overdirve transmission kit.  Will post the cost and dimensions
>>>when I get them.  Sorry I missed the opening parts of the
>>dyno thread.

Does the drive shaft twist enough to measure? If it does a strain gauge
on the shaft that detemined the frequency of an oscilor(sp) then modulate
a very small transmiter with the output from the oscilator. Recive it on the 
other end and then use the pulse accumulator on a 68HC11 to count the pulses
over a period and you should be able to convert that to torque. 

It would vary on every vehicle it would probably only be good for 
compairsons and would be difficult to calibrate and keep in calibration.

Gordon


Gordon Couger Senior Software Specialist
Biosystems & Agricultural Engineering Dept.  Oklahoma State Univ.
114 Ag Hall Stillwater, OK 74075
gcouger at master.ceat.okstate.edu