At 06:53 PM 11/21/97 -0500, you wrote: >On Tue, 18 Nov 1997, Sean Breheny wrote: >> >> Come to think of it, I think I have heard of remote temp. sensors using >> laser beams. Maybe they use a red laser beam to measure distance and >> reflectivity (surface nature) and then use these factors to correct the >> reading from the pyro sensor. > > If you have a laser system that good, why not use Thompson >scattering to measure the temp? > Please excuse my ignorance, but what is Thompson Scattering? Sean +--------------------------------+ | Sean Breheny | | Amateur Radio Callsign: KA3YXM | | Electrical Engineering Student | +--------------------------------+ http://www.people.cornell.edu/pages/shb7 Web Page Under Construction! mailto:shb7@cornell.edu