[Diy_efi] prop sensing

[bcroe at juno.com]

You would need to process that signal at the measurement 
point, then likely inductively couple it out perhaps as a 
varying frequency signal.  Slip rings don't sound practical.

A simpler method might be to observe the deflection of 
the engine mounts.  This accepts delay from the inertia 
of the mass of thestatic engine parts (as opposed to 
mass of the engine rotating parts).

Bruce Roe

On Sun, 21 Apr 2002 19:26:01 -0400 Stephen Andersen
<SAndersen at advan-tek.com> writes:
> INteresting concept.  I would suspect it would require 
> very high sample rates, and also would require some 
> type of slip-ring to get the signals from the gauges
> out.  The problem with slip-rings is that they can
> be very noisy for a low-signal data acq. situation. 

> Steve

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