Hall Effect Sensors

[Kevin Sevcik]

Originally Posted by MrForbes

.....steel? aluminum?

Steel. Gear Tooth Sensors have an embedded rare-earth magnet along with a hall effect sensor. They detect a change in the magnetic field that you're not going to see with a non-ferrous target.
EDIT: Also, Digikey has 22,690 in stock. Better order quick before they run out.

[BitTwiddler]

Originally Posted by Kevin Sevcik

Steel. Gear Tooth Sensors have an embedded rare-earth magnet along with a hall effect sensor. They detect a change in the magnetic field that you're not going to see with a non-ferrous target.

I think Jim was yanking my chain (also non-ferrous) for not being more specific.
Thanks for the source info though. We'll get our order in ASAP!

[MrForbes]

Originally Posted by BitTwiddler

I think Jim was yanking my chain (also non-ferrous) for not being more specific.

It was a serious question, Dave, because the sprocket is aluminum and I thought they only worked on ferrous teeth.