Ed _______________________________________________ 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.
This may be totally ridiculous, but maybe there's another way to get a
balance wheel signal. The X-band Doppler type microwave motion detectors
can pick up various object signals in free air from quite a distance, so
maybe up close there would be enough resolution and penetration of the
metal parts of a timepiece to get a usable signal in and out. It would
tend to accentuate the fastest part of any motion - the balance wheel in
this case. I can picture setting one up with the horn pointed at the
thinnest part, likely the watch face, from maybe a few inches away - or
whatever it takes to not overload the detector. The audio detector
signal (if sufficient) could then be processed in the same way as with a
microphone sound signal.
- [time-nuts] Mechanical clock sound pickup circuit Andrea Baldoni
- Re: [time-nuts] Mechanical clock sound pickup circui... Peter Torry
- Re: [time-nuts] Mechanical clock sound pickup ci... Andrea Baldoni
- Re: [time-nuts] Mechanical clock sound picku... ed breya
- Re: [time-nuts] Mechanical clock sound p... Jim Lux
- Re: [time-nuts] Mechanical clock so... Chuck Harris
- Re: [time-nuts] Mechanical clock sound pickup circui... Chuck Harris
- Re: [time-nuts] Mechanical clock sound pickup circui... Raj
- Re: [time-nuts] Mechanical clock sound pickup circui... Bob Camp
- Re: [time-nuts] Mechanical clock sound pickup circui... Dave Martindale
- Re: [time-nuts] Mechanical clock sound pickup ci... Alexander Pummer
- Re: [time-nuts] Mechanical clock sound picku... Azelio Boriani
- [time-nuts] Mechanical clock sound pickup circuit Mark Sims