JPS559174A - Digital scale device - Google Patents
Digital scale deviceInfo
- Publication number
- JPS559174A JPS559174A JP8314578A JP8314578A JPS559174A JP S559174 A JPS559174 A JP S559174A JP 8314578 A JP8314578 A JP 8314578A JP 8314578 A JP8314578 A JP 8314578A JP S559174 A JPS559174 A JP S559174A
- Authority
- JP
- Japan
- Prior art keywords
- scale
- slits
- slit
- row
- reference position
- 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.)
- Granted
Links
Landscapes
- Optical Transform (AREA)
Abstract
PURPOSE: To make it possible to detect the reference position of a scale by means of a simple structure by placing a reference slit in a row of a measuring slits of a main scale and thereby forming a reference position detecting unit.
CONSTITUTION: Main scale 30 is provided with a row of measuring slits 32, and index scale 34 is provided with measuring gate slits 36 and 38, which are placed on top of the slits of main scale 30 for comparison. When both scales 34 and 30 make a relative motion, the amount of displacement is subjected to photoelectric conversion. On a part of the slit row 32 is formed reference position detecting unit 40 having a wide slit. On the other hand, index scale 34 is also provided with reference gate slit 42 corresponding to it. On the side of main scale 30 are provided light emitters 44, 46 and 48. On the side of index scale 34 are provided light receivers 50, 52 and 54 corresponding to these light emitters, and these light receivers forms a moving photoelectric converter fixed on the same base plate as index scale 34.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8314578A JPS5853286B2 (en) | 1978-07-07 | 1978-07-07 | digital scale device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8314578A JPS5853286B2 (en) | 1978-07-07 | 1978-07-07 | digital scale device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS559174A true JPS559174A (en) | 1980-01-23 |
JPS5853286B2 JPS5853286B2 (en) | 1983-11-28 |
Family
ID=13794046
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8314578A Expired JPS5853286B2 (en) | 1978-07-07 | 1978-07-07 | digital scale device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5853286B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5837515A (en) * | 1981-08-10 | 1983-03-04 | Yokogawa Hewlett Packard Ltd | Optical modulator |
US6537602B1 (en) | 1998-10-08 | 2003-03-25 | Fuji Oil Co., Ltd. | Chocolate compositions and utilization thereof |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6071396U (en) * | 1983-10-24 | 1985-05-20 | 藤本 豊久 | Drain pipe cleaning equipment |
JPS6071395U (en) * | 1983-10-24 | 1985-05-20 | 藤本 豊久 | Drain pipe cleaning equipment |
-
1978
- 1978-07-07 JP JP8314578A patent/JPS5853286B2/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5837515A (en) * | 1981-08-10 | 1983-03-04 | Yokogawa Hewlett Packard Ltd | Optical modulator |
JPS6453914U (en) * | 1981-08-10 | 1989-04-03 | ||
JPH044973Y2 (en) * | 1981-08-10 | 1992-02-13 | ||
US6537602B1 (en) | 1998-10-08 | 2003-03-25 | Fuji Oil Co., Ltd. | Chocolate compositions and utilization thereof |
Also Published As
Publication number | Publication date |
---|---|
JPS5853286B2 (en) | 1983-11-28 |
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