JPS5790103A - Position detector - Google Patents

Position detector

Info

Publication number
JPS5790103A
JPS5790103A JP16732280A JP16732280A JPS5790103A JP S5790103 A JPS5790103 A JP S5790103A JP 16732280 A JP16732280 A JP 16732280A JP 16732280 A JP16732280 A JP 16732280A JP S5790103 A JPS5790103 A JP S5790103A
Authority
JP
Japan
Prior art keywords
detected
pair
subtraction circuit
mark
determined
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
JP16732280A
Other languages
Japanese (ja)
Inventor
Yoshiomi Yamashita
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 JP16732280A priority Critical patent/JPS5790103A/en
Publication of JPS5790103A publication Critical patent/JPS5790103A/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
    • G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
    • G01B11/27—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
    • G01B11/272—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes using photoelectric detection means

Abstract

PURPOSE:To make possible the position detection with a simple system configuration and high accuracy by combining a pair of photosensors with a subtraction circuit. CONSTITUTION:Light is transmitted from a light source 21 to a reflection plate 22 including a detection mark 23 and detected by a pair of photosensor 25, 26 via a lens system 24. Each detected output is given to a subtraction circuit 29 through buffers 27, 28 and the rotating direction of a servomotor 31 is determined depending on whether the different output is positive or negative, whereas positioning is determined in such a way that the detected mark is located in the middle of the sensors 25 and 26.
JP16732280A 1980-11-25 1980-11-25 Position detector Pending JPS5790103A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16732280A JPS5790103A (en) 1980-11-25 1980-11-25 Position detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16732280A JPS5790103A (en) 1980-11-25 1980-11-25 Position detector

Publications (1)

Publication Number Publication Date
JPS5790103A true JPS5790103A (en) 1982-06-04

Family

ID=15847592

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16732280A Pending JPS5790103A (en) 1980-11-25 1980-11-25 Position detector

Country Status (1)

Country Link
JP (1) JPS5790103A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5944604A (en) * 1982-09-08 1984-03-13 Nippon Kokan Kk <Nkk> Detection of seam position of pickled coil

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5944604A (en) * 1982-09-08 1984-03-13 Nippon Kokan Kk <Nkk> Detection of seam position of pickled coil

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