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Synchronization of Pendulum Clocks with the Help of Signals Taken from a Quartz-Crystal Clock

Synchronization of Pendulum Clocks with the Help of Signals Taken from a Quartz-Crystal Clock A great number of good pendulum clocks have an accuracy of between ±0.1 and ±0.5 sec/day. This figure does not compare very well with the accuracy of a fairly good quartz-crystal clock, which can be of the order of 0.01 sec/day and better. Besides, setting a pendulum clock in the case that the difference in time is a fraction of its period is rather tedious.; A method will be described by which a pendulum clock is locked into synchronization by energizing a pair of electromagnets (put at some critical places along the orbit of the pendulum) with special signals taken from a quartz-crystal clock. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png American Journal of Physics American Association of Physics Teachers

Synchronization of Pendulum Clocks with the Help of Signals Taken from a Quartz-Crystal Clock

American Journal of Physics , Volume 24 (7) – Oct 1, 1956

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Publisher
American Association of Physics Teachers
Copyright
Copyright © 1956 American Association of Physics Teachers
ISSN
0002-9505
eISSN
1943-2909
DOI
10.1119/1.1953048
Publisher site
See Article on Publisher Site

Abstract

A great number of good pendulum clocks have an accuracy of between ±0.1 and ±0.5 sec/day. This figure does not compare very well with the accuracy of a fairly good quartz-crystal clock, which can be of the order of 0.01 sec/day and better. Besides, setting a pendulum clock in the case that the difference in time is a fraction of its period is rather tedious.; A method will be described by which a pendulum clock is locked into synchronization by energizing a pair of electromagnets (put at some critical places along the orbit of the pendulum) with special signals taken from a quartz-crystal clock.

Journal

American Journal of PhysicsAmerican Association of Physics Teachers

Published: Oct 1, 1956

There are no references for this article.