reading a Knock Sensor

[Bruce Plecan]

Wouldn't it be shaken or squeezed?
Bruce


----- Original Message -----
From: "Programmer" <nwester at eidnet.org>
To: <gmecm at diy-efi.org>
Sent: Monday, October 09, 2000 9:26 PM
Subject: Re: reading a Knock Sensor


> I thought the more you "squeezed" the crystal,
> the more voltage output ?
> Lyndon.
> -----Original Message-----
> From: Roger Heflin <rah at horizon.hit.net>
> To: gmecm at diy-efi.org <gmecm at diy-efi.org>
> Date: October 8, 2000 9:42 PM
> Subject: Re: reading a Knock Sensor
>
>
> >
> >
> >On Sun, 8 Oct 2000, Keith wrote:
> >
> >> I know i can get the Voltage but what does that convert to?? more
> >> voltage = more knock???
> >> how much is too much.?
> >> Thanks
> >> Keith
> >>
> >It does not convert.   The knock sensor is simply a microphone,
> >everything that determines if the noise is knock is in the
> >electronics.
> >
> >Most of the electronics just do filtering and measure the amount of
> >power in a certain frequencty band, and this supposely differs by
> >engine and placement of the sensor(s).
> >
> > Roger
> >
>
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