Bruce Griffiths <[EMAIL PROTECTED]> wrote: >Hej Magnus
> A capacitive sensing AC bridge can be very sensitive, one only has > to look at the work of RV Jones at the university of Glasgow in > the 50's, 60's and 70's. He and his collaborators used capacitive > sensors to detect (among other things) the extrusion of a > micrometer shaft as it was clamped to realise just how sensitive > it can be. > They found it possible to detect length changes of less than > 1E-11m with a suitably designed sensor. > Even more sensitive capacitance bridge displacement sensors have > since been constructed. [...] >Bruce Bruce, very interesting. I didn't know capacitive sensors went down that low. That could be useful in other areas. I searched google but found nothing. Do you have any urls? Regards, Mike Monett _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
