Knock Sensor LED output

David Gregory dcg1174 at tntech.edu
Mon Jan 22 01:56:45 GMT 2001


Hello all-

I'm a new guy and I thought I would introduce myself and ask for a point in
the right direction.

I'm a graduate student in mechanical engineering and my current electrical
exposure is fairly limited although I would like to think that I know more
than most of my classmates.  I'm also taking a class in Mechatronics this
semester which deals primarily with the Motorolla MC68H12 and its
integration into robotic devices(we have to build a autonomous robot).

Eventually I would like to develop a device similar to the J&S safeguard(
http://safeguard.bizland.com/safeguard.html ) which retards timing when
knock is detected.  But I think I would do better with something small that
has less opportunities for screw ups, so I'm thinking of building a device
which will display knock on an LED bank.

I'm sure a project as simple as this has been done before and was hoping
someone could point out a link to get me started.  I've read the data sheet
for the HIP9010 and I think it does more than I need. I've "heard" that the
Honda OEM knock sensor outputs a 0-1V signal proportional to knock severity.
If that were the case, would this project be as simple as hooking it up to a
simple LED driver circuit?  Anyone know how to confirm the output of the
knock sensor?  Buy one and see if it has numbers?

I hope I'm not redicuouslly off topic. TIA

David Gregory

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