FW: Electronic timing advance

[rauscher at icst.com]

Ah yes, this is the 64thousand dollar question, what is the KS output when
a knock occurs. Just how high (amplitude), is the signal?

Anybody out there ever look at the knock signal with a scope, and can
help us with the amplitude and possibly the period?

My scope needs 120VAC and a second person to drive whilst running it. Hmm,
I might just know someone who can help... This won't be easy, but I might give
it a go.

BobR.


Bruce wrote:

>Hmm, ya got me wondering now, cause mine wouldn't trigger very easy.  Took
>12v as I recall..
>  Also, the KS wouldn't it be very "spikish" in nature, rather than a
>square wave, unless the on duration was very short.
>Bruce

BobR wrote:

>>My results seem to be a little different then what you have found, but I'm
>>not done yet. My first step was to hook the knock sensor output up to the
>>scope and rap on it with a metal rod. It looks just like you would expect
>>from a microphone, with a max output of ~3v (with a 'good' strike).
>>
<snip>

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