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Accurate Clock Pendulums
USD207,99
Aproximadamente177,13 EUR
Estado:
“Global shipping available! All photos in this listing are stock photos unless otherwise stated.”
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Envío:
Gratis USPS Media MailTM.
Ubicado en: Williamsburg, Virginia, Estados Unidos
Entrega:
Entrega prevista entre el sáb. 18 oct. y el sáb. 25 oct. a 94104
Devoluciones:
30 días para devoluciones. El comprador paga el envío de la devolución..
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Compra con confianza
El vendedor asume toda la responsabilidad de este anuncio.
N.º de artículo de eBay:267345943668
Última actualización el 28 sep 2025 22:39:12 H.EspVer todas las actualizacionesVer todas las actualizaciones
Características del artículo
- Estado
- En buen estado
- Notas del vendedor
- “Global shipping available! All photos in this listing are stock photos unless otherwise stated.”
- Binding
- Hardcover
- Book Title
- Accurate Clock Pendulums
- ISBN
- 9780198529712
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Product Identifiers
Publisher
Oxford University Press, Incorporated
ISBN-10
0198529716
ISBN-13
9780198529712
eBay Product ID (ePID)
30526658
Product Key Features
Number of Pages
280 Pages
Language
English
Publication Name
Accurate Clock Pendulums
Publication Year
2004
Subject
Scientific Instruments, Engineering (General), Clocks & Watches, Technical & Manufacturing Industries & Trades, Gravity
Type
Textbook
Subject Area
Technology & Engineering, Science, Antiques & Collectibles
Format
Hardcover
Dimensions
Item Height
0.8 in
Item Weight
25.9 Oz
Item Length
9.7 in
Item Width
7.4 in
Additional Product Features
Intended Audience
Scholarly & Professional
LCCN
2004-049237
Dewey Edition
22
Reviews
... a much-needed 'materials and methods' handbook ... It gives the reader a staggering amount of factual details on materials, methods, and the results of scrupulous experiments., ... the constant effort to ensure that opinions which diverge from his own are duly and respectfully noted; punctiliousness in acknowledging sources, and ensuring that all contributions to the knowledge-base by even the most minor personages are given full recognition - those are the attributes of Bob Matthys' book which (even more than its wealth of information and ideas) will ensure that it becomes a classic.
Illustrated
Yes
Dewey Decimal
681.1/12
Table Of Content
General1. Better accuracy from simple pendulums2. A short history of temperature compensation3. Scaling the size of a pendulum4. Finding a pendulum's axis of rotation5. Does a pendulum's axis of rotation shift with amplitude?6. Some practical properties of quartz7. Putting Q in perspective8. The Allan variance and the root mean square time error9. Transient temperature effects in a pendulum10. Transient response of a pendulum to temperature change11. Dimensional stability of pendulum materials12. Variations on a Riefler bob shape13. Bob shape14. Rate adjustment mechanismsSuspension spring15. Spring suspensions for accurate pendulums16. James' suspension spring equations17. Barometric compensation with a crossed spring suspension?18. Solid one-piece suspension springs19. Stable connections to a suspension spring20. Stability of suspension spring materialsPendulum rod21. Pendulum rod materials22. The heat treatment of invar23. The instability of invar24. Position sensitivity along the pendulum rod25. Fasteners for quartz pendulum rods26. Effect of the pendulum rod on QAir and clock case effects27. Correcting the pendulum's air pressure error28. Pendulum air movement: a failed experiment29. Pendulum air movement: a second try30. Time error due to air pressure variations31. Effect of the clock case walls on a pendulumElectronics32. An electronically driven pendulum33. Sinusoidal drive of a pendulum34. Photoelectronics for pendulums35. Check your clock against WWV36. Electronic correction for air pressure variations
Synopsis
Almost all of a pendulum clock's accuracy resides in it's pendulum. If the pendulum is accurate, the clock will be accurate. In this book, the author describes how to make a more accurate pendulum or pendulum clock. All scientific aspects of the pendulum design and operation are explained in simple terms and backed up with experimental data., The Shortt clock, made in the 1920's 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 s 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 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., 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.
LC Classification Number
QA862.P4
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