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Accurate Clock Pendulums

简体网页||繁体网页
Matthys, Robert 作者
Oxford Univ Pr
译者
2004-8 出版日期
276 页数
$ 163.85 价格
HRD
丛书系列
9780198529712 图书编码

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发表于2024-11-13


Accurate Clock Pendulums 在线电子书 epub 下载 mobi 下载 pdf 下载 txt 下载 2024

Accurate Clock Pendulums 在线电子书 epub 下载 mobi 下载 pdf 下载 txt 下载 2024

Accurate Clock Pendulums 在线电子书 pdf 下载 txt下载 epub 下载 mobi 下载 2024



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The Shortt clock, made in the 1920s, is the most famous accurate clock pendulum ever known, having an accuracy of one second per year when kept at nearly constant temperature. Almost all of a pendulum clock's accuracy resides in its pendulum. If the pendulum is accurate, the clock will be accurate. In this book, the author describes many scientific aspects of pendulum design and operation in simple terms with experimental data, and little mathematics. It has been written, looking at all the different parts and aspects of the pendulum in great detail, chapter by chapter, reflecting the degree of attention necessary for making a pendulum run accurately. The topics covered include the dimensional stability of different pendulum materials, good and poor suspension spring designs, the design of mechanical joints and clamps, effect of quartz on accuracy, temperature compensation, air drag of different bob shapes and making a sinusoidal electromagnetic drive. One whole chapter is devoted to simple ways of improving the accuracy of ordinary low-cost pendulum clocks, which have a different construction compared to the more expensive designs of substantially well-made ones.This book will prove invaluable to anyone who wants to know how to make a more accurate pendulum or pendulum clock.

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