JPS5739306A - Shape detector - Google Patents

Shape detector

Info

Publication number
JPS5739306A
JPS5739306A JP11543980A JP11543980A JPS5739306A JP S5739306 A JPS5739306 A JP S5739306A JP 11543980 A JP11543980 A JP 11543980A JP 11543980 A JP11543980 A JP 11543980A JP S5739306 A JPS5739306 A JP S5739306A
Authority
JP
Japan
Prior art keywords
temps
accordance
strip plate
photoelectric elements
stop mechanism
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
JP11543980A
Other languages
Japanese (ja)
Inventor
Tsutomu Shiraishi
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP11543980A priority Critical patent/JPS5739306A/en
Publication of JPS5739306A publication Critical patent/JPS5739306A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

PURPOSE:To make the improvement in the accuracy of a shape detector utilizing photoelectric elements and the like by using a lens system provided with a stop mechanism of which the aperture changes in accordance with the temps. of a specimen in condensing the light from said specimen. CONSTITUTION:The light radiated from a strip plate is received in a photoelectric element group via a lens system provided with a stop mechanism of which the aperture changes in accordance with its temps. For example, if a stop mechanism 10 of which the aperture is controlled in accordance with the output of a thermometer the temps. of a strip plate 1 is disposed in front of a lens 2 in receiving the light from the strip plate in plural photoelectric elements 3 via the lens, the outputs of the photoelectric elements depend only on the width size of the strip plate in this case and are irrelevant of its temps., and therefore the size measurement with high accuracy is made possible. It is also possible to subject the outputs of the photoelectric elements to signal processing, to compare the same with a reference value W in a comparator 7 and to emit a required signal to a cutter control circuit 9 in accordance with the difference thereof.
JP11543980A 1980-08-21 1980-08-21 Shape detector Pending JPS5739306A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11543980A JPS5739306A (en) 1980-08-21 1980-08-21 Shape detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11543980A JPS5739306A (en) 1980-08-21 1980-08-21 Shape detector

Publications (1)

Publication Number Publication Date
JPS5739306A true JPS5739306A (en) 1982-03-04

Family

ID=14662580

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11543980A Pending JPS5739306A (en) 1980-08-21 1980-08-21 Shape detector

Country Status (1)

Country Link
JP (1) JPS5739306A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60202375A (en) * 1984-03-27 1985-10-12 Ishikawajima Harima Heavy Ind Co Ltd Width-wise position detector for metal mass
JPS6184507U (en) * 1984-11-06 1986-06-04
JPS6350006U (en) * 1986-09-19 1988-04-05
JPH01163601A (en) * 1987-12-21 1989-06-27 Ishikawajima Harima Heavy Ind Co Ltd Width-directional position detecting device for metal ingot

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60202375A (en) * 1984-03-27 1985-10-12 Ishikawajima Harima Heavy Ind Co Ltd Width-wise position detector for metal mass
JPS6184507U (en) * 1984-11-06 1986-06-04
JPS6350006U (en) * 1986-09-19 1988-04-05
JPH01163601A (en) * 1987-12-21 1989-06-27 Ishikawajima Harima Heavy Ind Co Ltd Width-directional position detecting device for metal ingot

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