Optical triggering

For discussing how to choose sensors and create a wiring harness for all Bowling and Grippo versions of the MegaSquirt® EFI controller.
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coyoteboy
MegaSquirt Newbie
Posts: 18
Joined: Wed Feb 01, 2006 6:52 am
Location: The sunny UK
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Optical triggering

Post by coyoteboy »

Has anyone got an optical crank encoder working? Just curious - you could use a beam-interrupter setup to provide a nice clean digital signal with as many 'teeth' as you wanted within reason. The only issues i can see are dirt and maybe the wheel being brittle?

Just a top of the head thought, probably been addressed before but i cant see it in the search.

J
MSnS-E29q On a V2.2 was powering a 3S-GTE with stock sensors hopefully to approx 300 bhp until i blew a CPU
Datalogs and current MSQ at my site -
http://www.jbuckle.homeip.net/
feck
MegaSquirt Newbie
Posts: 4
Joined: Tue May 10, 2005 12:33 pm
Location: Dannevirke, New Zealand

Post by feck »

There are quite a few distributors with optical sensors in them. I personally prefer them.
An optical sensor isn't really suitable for out in the open as they will fail/false trigger with dirt etc. floating around. I think Hall effect sensors give a similar signal to an optical sensor, and aren't affected by dirt, oil etc so are more commonly used as a crank sensor.
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