「Theory of Horology」
Author Takashi Sasaya
English Translation by Toshihiko Chimura
Publishing Office Greenwich Meridian
TEL/FAX +81-467-77-7742
mail
meridiangreenwich@gmail.com
Price will be reduced to US $68.00 from US $95.00 by 28%.
Price US $68.00 (including shipping charge and tax)
[How to Order]
Payment must be made by credit card. Please note that
if the item is out of stock, delivery may take some time.
Inventory at present: 4 Date of delivery: About 10 days on the average
This book deeply explains the theory of horology.
The newly introduced points in this book from the existing theory of horology
can be summarized as follows:
- Introducing the explanations of fluid dynamics and gravity, the formula of amplitude
of pendulum and temp was derived. In addition, numerical analysis was also completed.
- The equation of spring torque from the curved beam theory was correctly derived.
- Numerical calculation methodology of Escapement Error by RK 4 (Runge-Kutta method)
which seems to be world first was introduced.
- How to draw the hairspring after distortion and many useful gnuplot sample programs
are also contained.
「Theory of Horology」
Contents
1 Motion of Pendulum
2 Air Density & Coefficient of Viscosity
3 Gravitational Acceleration
4 Motion of Balance
5 Spiral Spring Dynamics
6 Isochronous Error
7 Airy's Theorem
8 Escapement Error
9 General Theory of Hairspring
10 Theory of Flat Hairspring
11 Isochronism of Vertical Position
12 Temperature Compensation of Balance
13 Numerical Analysis
14 Appendix
「Theory of Horology」
Author Takashi Sasaya
English Translation by Toshihiko Chimura
Publishing Office Greenwich Meridian
TEL/FAX +81-467-77-7742
Price will be reduced to US $68.00 from US $95.00 by 28%.
Price US $68.00 (including shipping charge and tax)
[How to Order]
Payment must be made by credit card. Please note that
if the item is out of stock, delivery may take some time.
Inventory at present: 4 Date of delivery: About 10 days on the average
|
This book deeply explains the theory of horology. The newly introduced points in this book from the existing theory of horology can be summarized as follows: - Introducing the explanations of fluid dynamics and gravity, the formula of amplitude of pendulum and temp was derived. In addition, numerical analysis was also completed. - The equation of spring torque from the curved beam theory was correctly derived. - Numerical calculation methodology of Escapement Error by RK 4 (Runge-Kutta method) which seems to be world first was introduced. - How to draw the hairspring after distortion and many useful gnuplot sample programs are also contained.
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