Proximity sensors

rfs@... wrote:

> I am looking for info on inductive proximity sensors, particularly
> the electronics (schematics) to make them work.

Try "Controlling the World with your PC" by Paul Bergsman,
project 33: "Using an Eddy Current Proximity Switch for
Parallel Port Input".

As the project uses a "Gordon Products PE16 Eddy Current
Proximity switch, I found the web page here:
http://www.gordonproducts.com/pe16s.htm $35

and a heavy duty version here:
http://www.gordonproducts.com/pe30.htm $65

Richard <rfs@...>, contact me offline with
your fax number, and I'll fax you the page tomorrow.

Doug Fortune pentam@...
http://www.cuug.ab.ca/~fortuned/cncKITS_faq.html