JPS5674609A - Transit - Google Patents
TransitInfo
- Publication number
- JPS5674609A JPS5674609A JP15217579A JP15217579A JPS5674609A JP S5674609 A JPS5674609 A JP S5674609A JP 15217579 A JP15217579 A JP 15217579A JP 15217579 A JP15217579 A JP 15217579A JP S5674609 A JPS5674609 A JP S5674609A
- Authority
- JP
- Japan
- Prior art keywords
- slit plates
- angle
- index
- slit
- plates
- 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
- Optical Transform (AREA)
Abstract
PURPOSE: To read the angle easily by utilizing the interference fringe which occurs between the angle indexing slit plate and the index slit plate.
CONSTITUTION: The angle indexing slit plates 7h, 7v are installed to the rotary supporting shaft 3 of the body 1 and the supporting shaft 6 of the telescope 4, respectively, and also the index slit plates 8h, 8v are installed so that they are concentrically opposed at small intervals to the angle indexing slit plates 7h, 7v. And the light beams from the light emitting elements 11a, 11b are supplied to the photodetectors 12a, 12b through the angle indexing slit plates 7h, 7v and the index slit plates 8h, 8v, respectively, and as the angle indexing slit plates 7h, 7v and the index slit plates 8h, 8v rotate, the interference fringe which occurs between both the slit plates 7h, 8h and 7v, 8v is detected as an optical signal by the photodetectors 12a, 12b. This output is counted by the electronic circuit, and the count display is executed as the horizontal angle or the vertical angle on the digital display part 15.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15217579A JPS5674609A (en) | 1979-11-24 | 1979-11-24 | Transit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15217579A JPS5674609A (en) | 1979-11-24 | 1979-11-24 | Transit |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14522083A Division JPS5946507A (en) | 1983-08-08 | 1983-08-08 | Transit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5674609A true JPS5674609A (en) | 1981-06-20 |
Family
ID=15534677
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15217579A Pending JPS5674609A (en) | 1979-11-24 | 1979-11-24 | Transit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5674609A (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS587514A (en) * | 1981-07-08 | 1983-01-17 | Tokyo Optical Co Ltd | Digital transit |
JPS587513A (en) * | 1981-07-08 | 1983-01-17 | Tokyo Optical Co Ltd | Digital transit |
JPS5842665U (en) * | 1981-09-16 | 1983-03-22 | 富士光機株式会社 | Digital theodolite rotation direction indicator |
JPS58105010A (en) * | 1981-12-17 | 1983-06-22 | Tokyo Optical Co Ltd | Warning device for setting angle value of digital transit |
JPS59162610U (en) * | 1981-09-18 | 1984-10-31 | 富士光機株式会社 | Digital theodolite horizontal angle right angle direction indicator |
JPS60243531A (en) * | 1984-05-18 | 1985-12-03 | Honda Motor Co Ltd | Optical type torque detector |
JPS60243532A (en) * | 1984-05-18 | 1985-12-03 | Honda Motor Co Ltd | Optical type torque detector |
JPS61706A (en) * | 1984-06-14 | 1986-01-06 | Mayekawa Mfg Co Ltd | Detection of relative angular displacement of rotating shaft by inclined stripe |
JPS6125010A (en) * | 1984-07-16 | 1986-02-03 | Asahi Optical Co Ltd | Measurement processing circuit in measuring equipment having a plurality of encoders |
-
1979
- 1979-11-24 JP JP15217579A patent/JPS5674609A/en active Pending
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS587514A (en) * | 1981-07-08 | 1983-01-17 | Tokyo Optical Co Ltd | Digital transit |
JPS587513A (en) * | 1981-07-08 | 1983-01-17 | Tokyo Optical Co Ltd | Digital transit |
JPS5842665U (en) * | 1981-09-16 | 1983-03-22 | 富士光機株式会社 | Digital theodolite rotation direction indicator |
JPS59162610U (en) * | 1981-09-18 | 1984-10-31 | 富士光機株式会社 | Digital theodolite horizontal angle right angle direction indicator |
JPS58105010A (en) * | 1981-12-17 | 1983-06-22 | Tokyo Optical Co Ltd | Warning device for setting angle value of digital transit |
JPH0449047B2 (en) * | 1981-12-17 | 1992-08-10 | Topcon Corp | |
JPS60243531A (en) * | 1984-05-18 | 1985-12-03 | Honda Motor Co Ltd | Optical type torque detector |
JPS60243532A (en) * | 1984-05-18 | 1985-12-03 | Honda Motor Co Ltd | Optical type torque detector |
JPS61706A (en) * | 1984-06-14 | 1986-01-06 | Mayekawa Mfg Co Ltd | Detection of relative angular displacement of rotating shaft by inclined stripe |
JPH0377929B2 (en) * | 1984-06-14 | 1991-12-12 | Maekawa Seisakusho Kk | |
JPS6125010A (en) * | 1984-07-16 | 1986-02-03 | Asahi Optical Co Ltd | Measurement processing circuit in measuring equipment having a plurality of encoders |
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