on knock detecting with HIP9010

[Bruce]

From: "Marc Reibel" <marc at reibel-web.de>
> You're right about the flaws with acoustic measurement, but I think this
> should be no problem at least for me ( 1.3l inline 4 ), because of the
> second sensor measuring the background noise.
> My favourite knock detection by now is the ion-current-approach done by
> Saab and other companies. But I think that's too difficult for my Project.
> Marc

Maybe cause of their execusion.
There maybe simplier ways
Bruce

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