[time-nuts] Electronically Disciplined Mechanical Pendulum

2015-06-27 Thread Mark Sims
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

Re: [time-nuts] Electronically Disciplined Mechanical Pendulum

2015-06-26 Thread Luke Mester
Bert, Thank you for posting your project info! One of my hobbies is collecting and repairing clocks. For several years I've been thinking of making an add-on device to discipline pendulum clocks. I've been using PIC based circuits to provide pendulum impulse. I've not tried to discipline the

Re: [time-nuts] Electronically Disciplined Mechanical

2015-06-09 Thread Bert, VE2ZAZ
: Bert, VE2ZAZ ve2...@yahoo.ca To: time-nuts@febo.com Sent: Monday, June 08, 2015 10:11 AM Subject: [time-nuts] Electronically Disciplined Mechanical Pendulum Greetings, I just want to let those who are curious about disciplining a mechanical pendulum that I have pretty much wrapped up playing

Re: [time-nuts] Electronically Disciplined Mechanical Pendulum

2015-06-09 Thread Ian Stirling
On 06/08/2015 01:11 PM, Bert, VE2ZAZ wrote: I just want to let those who are curious about disciplining a mechanical pendulum Hello Bert, It is good seeing this in motion. I have had this project in mind since I read the article in Scientific American, A Venerable Clock Is Made Highly

Re: [time-nuts] Electronically Disciplined Mechanical

2015-06-09 Thread Alexander Pummer
Subject: Re: [time-nuts] Electronically Disciplined Mechanical Pendulum Message-ID: ED4D31631FC440A19A71631386F46143@pc52 Content-Type: text/plain;charset=utf-8 Hi Bert, Thanks for posting that project. What a wonderful combination of electronic and mechanical timing, of design

[time-nuts] Electronically Disciplined Mechanical Pendulum

2015-06-08 Thread Bert, VE2ZAZ
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

Re: [time-nuts] Electronically Disciplined Mechanical Pendulum

2015-06-08 Thread Tom Van Baak
] Electronically Disciplined Mechanical Pendulum 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