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Message
I
planned to use an optical sensor to compare the flywheel to the redrive input
since there are rubber gizmos that flex a certain ammount. only problem someone
pointed out is that they change their stiffnes with temperature.
The
idea behind torque is that that is true horsepower at the shaft - just
multiply by rpm and some constant.
In PT6
turboprop engines there is a helical gear that excerts pressure on a
hydraulic piston which then is read out in the cockpit as pounds of
torque.
Maybe
there is a pressure sensor in form of a washer that fits into the Tracy
redrive under the thrustbearing.
re
Marko
I
want Torque.
I'd also like a large display.
Marko
Guess I could calculate torque based on calculated HP & rpm, but
would that really add anything? If I could think of a low cost
way to measure it directly, that would be a nice thing. Alas,
cheap ways to do that are hard to come by. Paul Lamar suggested an
annular piston (to sense pressure) behind the sun gear but I don't think
that is either simple or cheap. At least not for the guy
that actually has to do it.
Tracy
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