On Sun, 20 Jul 2014 15:57:24 -0400 Chuck Harris <cfhar...@erols.com> wrote:
> I initially thought that it might be a transmission sort of effect, where > the light intensity changed with temperature, but its total lack of > sensitivity > to being in a liquid, kind of makes that unlikely. Nope, it's a path length difference system. There is a small, temperature dependend crystal at the tip. The device measures the optical length of this crystal. See: http://www.emeraldinsight.com/content_images/fig/0870260309013.png I'm sure there are other ways as well, like using distributed fiber gratings (a change in length means a change in "resonant" frequency/wavelength) but i have no references for such (though, i haven't searched either) Attila Kinali -- I pity people who can't find laughter or at least some bit of amusement in the little doings of the day. I believe I could find something ridiculous even in the saddest moment, if necessary. It has nothing to do with being superficial. It's a matter of joy in life. -- Sophie Scholl _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
