🚀 go-pugleaf

In article <103678@netnews.upenn.edu> george@mech.seas.upenn.edu writes:
>
>:Good magnetic sensors in disk drives , brushless DC motors or Car 
>:ignitions use Hall Effect sensors that provide a solid state or linear 
>
>:
>:Cheaper sensors use magnetic switches when the contact frequency is low. 
>:REED RELAYS are such a device.
>:
>
>my latest project needs a magnetic sensor to operate over a range 
>from 0 to 100Hz.  I think this is at best pushing the limit
>of what i can do with a reed switch.  How can i find out
>out more about hall effect devices?  A small quantity supplier,
>with data sheets would be nice..
>--
>  /   george jefferson
>\/ *  george@mech.seas.upenn.edu

The latest issue (Feb '93) of ComputerCraft has an article titled "Using
Rotary Encoders" that has some good info on Hall-effect sensors.  All
Electronics has 3 of them listed in their Spring/Summer 1992 catalog.
They're probably still in their latest one.  Number is 1-800-826-5432.

They show a Microswitch #SS41 that operates at up to 100 kHz.  Their cat. #
is HESW-2 and they're 75 cents or 10 for $6.50.  It is in a TO-92 package.


			Wally Blackburn AA8DX