Hi Dwayne - Could this be done by including the coil into an oscillator and then measuring teh frequency change? David Dwayne Reid wrote: > At 10:16 PM 3/15/02 -0600, Jim wrote: > >Permeability change (inductance change) on a small > >coil (I'm think of the paper-form or plastic style > >IF cans of years past) with a movable (sliding) > >core against the force a small spring or other > >elastic component ... > > Even easier - measure the inductance change in a coil spring. > > dwayne > > Dwayne Reid > Trinity Electronics Systems Ltd Edmonton, AB, CANADA > (780) 489-3199 voice (780) 487-6397 fax > > Celebrating 18 years of Engineering Innovation (1984 - 2002) > .-. .-. .-. .-. .-. .-. .-. .-. .-. .- > `-' `-' `-' `-' `-' `-' `-' `-' `-' > Do NOT send unsolicited commercial email to this email address. > This message neither grants consent to receive unsolicited > commercial email nor is intended to solicit commercial email. > > -- > http://www.piclist.com#nomail Going offline? Don't AutoReply us! > email listserv@mitvma.mit.edu with SET PICList DIGEST in the body -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body