how does a knock sensor work?

[Dave Evans]

Hi


have a look at.
http://www.ti.com/sc/docs/psheets/abstract/apps/spra039.htm


HTH



In message <3B87C0BA.1BF61730 at nni.com>, rr <RRauscher at nni.com> writes
>
>Yes that is correct. How much they are tuned to a certain pitch I can't
>say. However, I have found that the ESC modules are where every
>thing is sorted out. GM calls them an 'acoustic filter'.
>
>The ESC modules will respond to both a high amplitude within a certain
>frequency range along with a rapid change in frequency. This allows
>a certain amount of 'adjustment' to background noises.
>
>BobR.
>
>
>David Gravereaux wrote:
>
>> Is it basically a microphone tuned to a certain pitch?  Albeit, a very
>> unsensitive one.  Any guides for a newbie to understand these things?  I'd
>> better hit the bookstore :)
>> --
>> David Gravereaux <davygrvy at pobox.com>
>>
>> $ make war
>> make: *** No rule to make target `war'.  Stop.  Try `love' instead.
>> ----------------------------------------------------------------------------
>
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-- 
Dave Evans
Lotus Omega 3.6L, 412Bhp
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