JPS54122179A - Torque measuring method - Google Patents
Torque measuring methodInfo
- Publication number
- JPS54122179A JPS54122179A JP3031578A JP3031578A JPS54122179A JP S54122179 A JPS54122179 A JP S54122179A JP 3031578 A JP3031578 A JP 3031578A JP 3031578 A JP3031578 A JP 3031578A JP S54122179 A JPS54122179 A JP S54122179A
- Authority
- JP
- Japan
- Prior art keywords
- hand
- step motor
- torque
- camera
- detected
- 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
Landscapes
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
PURPOSE: To make possible torque measurement of a step motor for wristwatches in the state of finished assembly by detecting the displacements with time of the second hand position.
CONSTITUTION: The power of a step motor 1 drives the second hand 4 by way of a wheel train such as a pinion 2 and a gear 3. The position of the second hand 4 is detected with a camera 5 built therein with an image sensing element to make possible to regure measurement of the step motor 1. Here, if the position (x) in the circumferential direction of the second hand 4 is detected with time by the camera 5 incorporated with the image sensing element, then it becomes possible to calculate the torque which has reduced friction torque L from the shaft torque T of the step motor 1.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3031578A JPS54122179A (en) | 1978-03-16 | 1978-03-16 | Torque measuring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3031578A JPS54122179A (en) | 1978-03-16 | 1978-03-16 | Torque measuring method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54122179A true JPS54122179A (en) | 1979-09-21 |
Family
ID=12300353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3031578A Pending JPS54122179A (en) | 1978-03-16 | 1978-03-16 | Torque measuring method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54122179A (en) |
-
1978
- 1978-03-16 JP JP3031578A patent/JPS54122179A/en active Pending
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