JPS5551390A - Measuring device for electronic watch - Google Patents
Measuring device for electronic watchInfo
- Publication number
- JPS5551390A JPS5551390A JP12492078A JP12492078A JPS5551390A JP S5551390 A JPS5551390 A JP S5551390A JP 12492078 A JP12492078 A JP 12492078A JP 12492078 A JP12492078 A JP 12492078A JP S5551390 A JPS5551390 A JP S5551390A
- Authority
- JP
- Japan
- Prior art keywords
- loop
- coil
- section
- correcting
- frequency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE: To increase the measurement accuracy for the rough torque of the analog crystal watch by memorizing both the driving frequency and the correcting frequency of the step motor.
CONSTITUTION: The step motor incorporated into the crystal watch consists of stator 1, rotor 2 and coil 3, and receives supply of the reverse pulse with every second. The voltage applied across coil 3 flows the current of loop 9 at section (a) and is switched to loop 10 containing detection resistance 6b at section (b). And the voltage generated by the vibration of rotor 2 is obtained at terminal 8h. Then when the non-rotation is detected at section (b), the current is supplied to coil 3 through loop 9 to secure the correcting drive for the motor via the sufficiently long pulse. And both the driving frequency and the correcting frequency are memorized.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12492078A JPS5551390A (en) | 1978-10-11 | 1978-10-11 | Measuring device for electronic watch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12492078A JPS5551390A (en) | 1978-10-11 | 1978-10-11 | Measuring device for electronic watch |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5551390A true JPS5551390A (en) | 1980-04-15 |
Family
ID=14897399
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12492078A Pending JPS5551390A (en) | 1978-10-11 | 1978-10-11 | Measuring device for electronic watch |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5551390A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58205871A (en) * | 1982-05-25 | 1983-11-30 | Seiko Instr & Electronics Ltd | Electronic time piece |
JPH05236153A (en) * | 1992-02-24 | 1993-09-10 | Kosutemu Kk | Two-way information service equipment |
-
1978
- 1978-10-11 JP JP12492078A patent/JPS5551390A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58205871A (en) * | 1982-05-25 | 1983-11-30 | Seiko Instr & Electronics Ltd | Electronic time piece |
JPH0451790B2 (en) * | 1982-05-25 | 1992-08-20 | Seiko Instr & Electronics | |
JPH05236153A (en) * | 1992-02-24 | 1993-09-10 | Kosutemu Kk | Two-way information service equipment |
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