Quote:
Originally Posted by Kevin Sevcik
Yes, though it's a little slow. You typically need a pretty wide stripe to get it to work. Too narrow a stripe and it won't register. Practically speaking, you can make the stripe take up half of whatever surface you're sensing and it'll work fine.
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FWIW, the Rockwell catalog for the 42EF model sensor lists the "Response Time" as "1 to 16 ms".
It's not clear whether those numbers mean
a) the pulse width must be 1 to 16ms in order to be reliably detected, or
b) it takes the sensor 1 to 16ms to respond to a pulse (and the required pulse width is left unspecified, or
c) something else.
You need the stripe width to be 1/12 of a revolution at the point of sensing in order for it to be under the sensor for 1ms when the wheel is spinning at 5000 rpm.