Greetings,
I just want to let those who are curious about disciplining a mechanical pendulum that I have pretty much wrapped up playing with a 1m-long pendulum, which I control with PIC micro firmware and try to mainain at a constant temperature. Accuracy for 20-second averaging is typically better than 1 ppm. I have documented my work here: On my website ( http://ve2zaz.net/Pendulum_Ctl/Pendulum_Ctl.htm ), On Youtube ( https://www.youtube.com/watch?v=7NdGX4A8W88 ) Thanks, Bert, VE2ZAZ _______________________________________________ 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.