Tracy Crook wrote:

On the knock sensor, I was hoping that the J & S system mentioned would
already have the DSP done and have an output that went active for some
period of time whenever it detected engine knock.  It might take a complete
re-design to add enough processing power to the EC2 to discriminate the
knock pulses from normal engine noise.  I've never personally looked at the
output of a knock sensor under actual operating conditions so I don't know
how big a job this is.  I'm not up for a re-design now so all signal
processing will have to be done external to the EFI.

Tracy Crook
tcrook@rotaryaviation.com
www.rotaryaviation.com

The human brain is a superb real time audio signal processor.

Paul Lamar

   Yeah- if you couldn't sort out that tiger's footfall from
the background noise - out of the gene pool!

Bill
Long EZ builder & pilot
mechanical engineer

 
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