JPS557670A - Position detector - Google Patents

Position detector

Info

Publication number
JPS557670A
JPS557670A JP8122178A JP8122178A JPS557670A JP S557670 A JPS557670 A JP S557670A JP 8122178 A JP8122178 A JP 8122178A JP 8122178 A JP8122178 A JP 8122178A JP S557670 A JPS557670 A JP S557670A
Authority
JP
Japan
Prior art keywords
detector
shift
point
distance
light
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.)
Granted
Application number
JP8122178A
Other languages
Japanese (ja)
Other versions
JPS5832325B2 (en
Inventor
Yasuhiro Matsushita
Yoshio Tomioka
Kazuo Takashima
Minoru Tanaka
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
Nippon Steel Corp
Original Assignee
Mitsubishi Electric Corp
Nippon Steel 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, Nippon Steel Corp filed Critical Mitsubishi Electric Corp
Priority to JP8122178A priority Critical patent/JPS5832325B2/en
Publication of JPS557670A publication Critical patent/JPS557670A/en
Publication of JPS5832325B2 publication Critical patent/JPS5832325B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices By Optical Means (AREA)
  • Measurement Of Optical Distance (AREA)

Abstract

PURPOSE: To enable to detect the amount of shift and distance of the inspected boby having a curvature, and the distance between the detector and the inspected body, and the radius of the inspected body, by performing measurement from two different points.
CONSTITUTION: The light axis 4 and the light emitting point 6 of the illumination unit 2, and the light axis 5 of the two dimensional detector 3 and the second major point 7 of the lens system are constituted that they are respectively be matched. Further, the illimination unit 8 constituted the same as above and the two dimensional detector 19 are placed in the plane including the said light axes 4 and 5 and by shifting the light emitting point 12 toward the direction of reflection light from the said light emitting point 6. With this constitution, the image at the point a is obtained in detection system for the inspected body having a curvature, for example, the cylinder 1, and the image at the point b is obtained from another detection system. The distance Y to the center of the detector 1 and the amount of shift 3a can be obtained by the calculation 14 from the amounts of shift 5a and 6a. Further, by shifting the detection system, the shift 3a is zeroed and the distance L up to the uppermost part of the surface of the detector 1 is obtained with the second measurement. Accordingly, the radius can be obtained from the values of Y and L.
COPYRIGHT: (C)1980,JPO&Japio
JP8122178A 1978-07-04 1978-07-04 position detection device Expired JPS5832325B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8122178A JPS5832325B2 (en) 1978-07-04 1978-07-04 position detection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8122178A JPS5832325B2 (en) 1978-07-04 1978-07-04 position detection device

Publications (2)

Publication Number Publication Date
JPS557670A true JPS557670A (en) 1980-01-19
JPS5832325B2 JPS5832325B2 (en) 1983-07-12

Family

ID=13740417

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8122178A Expired JPS5832325B2 (en) 1978-07-04 1978-07-04 position detection device

Country Status (1)

Country Link
JP (1) JPS5832325B2 (en)

Also Published As

Publication number Publication date
JPS5832325B2 (en) 1983-07-12

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