JPS5488156A - Length measuring method - Google Patents
Length measuring methodInfo
- Publication number
- JPS5488156A JPS5488156A JP15621577A JP15621577A JPS5488156A JP S5488156 A JPS5488156 A JP S5488156A JP 15621577 A JP15621577 A JP 15621577A JP 15621577 A JP15621577 A JP 15621577A JP S5488156 A JPS5488156 A JP S5488156A
- Authority
- JP
- Japan
- Prior art keywords
- spacing
- coupler
- disposed
- length
- time
- 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
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
PURPOSE: To enable measurement to be made without detecting the time corresponding to the predetermined length by measuring the lengths of moving objects with a plurality of detectors disposed by leaving a spacing, based on the disposed spacing and detection time.
CONSTITUTION: Photo couplers 5, 6 each consisting of a light emitting device 3 and a photo detector 4 are disposed by having a centain spacing in the moving direction of an object 1. Now, the time since the object 1 moves in the arrow direction and the coupler 6 detects the object 1 until the object 1 goes out of the coupler 5 is detected with either coupler and is stored. The value adding the spacing of both couplers 5, 6 to the length calculated based on the detection time thus obtained is the length of the object 1.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15621577A JPS5488156A (en) | 1977-12-24 | 1977-12-24 | Length measuring method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15621577A JPS5488156A (en) | 1977-12-24 | 1977-12-24 | Length measuring method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5488156A true JPS5488156A (en) | 1979-07-13 |
Family
ID=15622869
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15621577A Pending JPS5488156A (en) | 1977-12-24 | 1977-12-24 | Length measuring method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5488156A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02179410A (en) * | 1988-12-29 | 1990-07-12 | Isuzu Motors Ltd | Automatic discrimination of workpiece |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4927242A (en) * | 1972-06-30 | 1974-03-11 |
-
1977
- 1977-12-24 JP JP15621577A patent/JPS5488156A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4927242A (en) * | 1972-06-30 | 1974-03-11 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02179410A (en) * | 1988-12-29 | 1990-07-12 | Isuzu Motors Ltd | Automatic discrimination of workpiece |
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