JPS55159103A - Outside diameter measuring device - Google Patents

Outside diameter measuring device

Info

Publication number
JPS55159103A
JPS55159103A JP6834379A JP6834379A JPS55159103A JP S55159103 A JPS55159103 A JP S55159103A JP 6834379 A JP6834379 A JP 6834379A JP 6834379 A JP6834379 A JP 6834379A JP S55159103 A JPS55159103 A JP S55159103A
Authority
JP
Japan
Prior art keywords
outside diameter
light
measuring object
measuring
photoconductive band
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
Application number
JP6834379A
Other languages
Japanese (ja)
Inventor
Koji Okamura
Shigeki Hamashima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP6834379A priority Critical patent/JPS55159103A/en
Publication of JPS55159103A publication Critical patent/JPS55159103A/en
Pending legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices By Optical Means (AREA)

Abstract

PURPOSE: To simplify constitution and reduce size and weight by measuring the outside diameter size of the measuring object from the photodetecting output of photodetectors.
CONSTITUTION: Light from a light emitting source 1 is radiated as the parallel light of a diameter larger than the outside diameter D of the measuring object 3 by a lens 2 to the object 3 in its perpendicular direction. The outside diameter image (d) obtained by this radiation light is imaged on the light incident plane of a photoconductive band 4. Thence, according to this outside diameter image (d), the light input propagates in the photoconductive band 4 and is detected in respective photodetectors 7. The detection outputs thereof are analyzed to measure the outside diameter size D of the measuring object 3. Here, the photoconductive band 4 is made by flatly and regularly arraying a multiplicity of optical fibers 5, forming them in strip form by means of flexible resin or the like and constituting the light incident plane 6 in linear form.
COPYRIGHT: (C)1980,JPO&Japio
JP6834379A 1979-05-31 1979-05-31 Outside diameter measuring device Pending JPS55159103A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6834379A JPS55159103A (en) 1979-05-31 1979-05-31 Outside diameter measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6834379A JPS55159103A (en) 1979-05-31 1979-05-31 Outside diameter measuring device

Publications (1)

Publication Number Publication Date
JPS55159103A true JPS55159103A (en) 1980-12-11

Family

ID=13371090

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6834379A Pending JPS55159103A (en) 1979-05-31 1979-05-31 Outside diameter measuring device

Country Status (1)

Country Link
JP (1) JPS55159103A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6052075U (en) * 1983-09-16 1985-04-12 日本ニユクリア・フユエル株式会社 Nuclear fuel rod automatic welding equipment
US4529318A (en) * 1981-06-17 1985-07-16 De La Rue Systems Limited Method and apparatus for inspecting sheets for flaws
JPS6259810U (en) * 1985-10-02 1987-04-14
JPH027507U (en) * 1988-06-28 1990-01-18

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4529318A (en) * 1981-06-17 1985-07-16 De La Rue Systems Limited Method and apparatus for inspecting sheets for flaws
JPS6052075U (en) * 1983-09-16 1985-04-12 日本ニユクリア・フユエル株式会社 Nuclear fuel rod automatic welding equipment
JPS6321966Y2 (en) * 1983-09-16 1988-06-16
JPS6259810U (en) * 1985-10-02 1987-04-14
JPH027507U (en) * 1988-06-28 1990-01-18
JPH0530084Y2 (en) * 1988-06-28 1993-08-02

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