DIY Knock Sensor - Anyone built one yet...
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Location: 32 cylinders and many cats
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I mirrored the top image so it is in the same orientation as the lower picture. It is a very primitive solution - simple dumb analog filtering, no time compensation, poor signal to noise ratio. I've not bothered because now I have Delta Dash and it seems to show you knock that would never register on a Knocklink. The best would be one of the Texas Instruments DSP chips - they are not horrifically expensive.
http://focus.ti.com/docs/apps/catalo...ctName=spra039
I didn't get as far with the TI stuff to see if you could get it in a non-SMT (DIL) package though.
[Edited by john banks - 4/28/2002 5:54:26 PM]
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