[time-nuts] Electronically Disciplined Mechanical Pendulum
holrum at hotmail.com
Sat Jun 27 01:30:24 UTC 2015
Several years ago (OK, the last millenium) I GPS disciplined a friend of mines 200 year old grandfather clock that she had inherited. I used a solenoid to nudge the pendulum. Surprisingly, it worked quite well the first time. The biggest problem was the pendulum did not swing at a 1Hz rate. I think it was needed like 24 pulses/minute. I later played with using a magnet/electromagnet instead of the solenoid, but it did not seem to work as well.
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