JPS54161962A - Size measuring apparatus - Google Patents

Size measuring apparatus

Info

Publication number
JPS54161962A
JPS54161962A JP7129178A JP7129178A JPS54161962A JP S54161962 A JPS54161962 A JP S54161962A JP 7129178 A JP7129178 A JP 7129178A JP 7129178 A JP7129178 A JP 7129178A JP S54161962 A JPS54161962 A JP S54161962A
Authority
JP
Japan
Prior art keywords
target object
monitor
picked
size
camera
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
JP7129178A
Other languages
Japanese (ja)
Other versions
JPS638404B2 (en
Inventor
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
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 JP7129178A priority Critical patent/JPS54161962A/en
Publication of JPS54161962A publication Critical patent/JPS54161962A/en
Publication of JPS638404B2 publication Critical patent/JPS638404B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices By Optical Means (AREA)

Abstract

PURPOSE: To perform size measurement without being affected by the vibrations, thickness change and inclination of the target object by forming bright and dark parts on both sides of the target object with a projecting means, picking up the images of the bright and dark parts and target object and operating the coordinates of both ends in the size measuring direction of the target object.
CONSTITUTION: A target object 1 is placed on a table 8. Light is then projected from a projector 7 which is so arranged that its divergent point comes on the optical axis of a camera 2. The image of the target object 1 is picked up with the camera 2 and the video is obtained in a monitor 5. At this time the portions Tu, VN of the shade of the target object 1 created on the table 8 are also picked up and their images are obtained in the monitor 5. From the video electric signals of this monitor, formula [I] is operated in a processing unit 6, whereby the size W in the width direction of the target 1 is obtained.
COPYRIGHT: (C)1979,JPO&Japio
JP7129178A 1978-06-12 1978-06-12 Size measuring apparatus Granted JPS54161962A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7129178A JPS54161962A (en) 1978-06-12 1978-06-12 Size measuring apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7129178A JPS54161962A (en) 1978-06-12 1978-06-12 Size measuring apparatus

Publications (2)

Publication Number Publication Date
JPS54161962A true JPS54161962A (en) 1979-12-22
JPS638404B2 JPS638404B2 (en) 1988-02-23

Family

ID=13456431

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7129178A Granted JPS54161962A (en) 1978-06-12 1978-06-12 Size measuring apparatus

Country Status (1)

Country Link
JP (1) JPS54161962A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59136606A (en) * 1983-01-26 1984-08-06 Kawasaki Heavy Ind Ltd Detector for weld line
JPS6022606A (en) * 1983-07-18 1985-02-05 Saburo Tsuji Method for measuring three-dimensional position of object

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59136606A (en) * 1983-01-26 1984-08-06 Kawasaki Heavy Ind Ltd Detector for weld line
JPH0474642B2 (en) * 1983-01-26 1992-11-26
JPS6022606A (en) * 1983-07-18 1985-02-05 Saburo Tsuji Method for measuring three-dimensional position of object

Also Published As

Publication number Publication date
JPS638404B2 (en) 1988-02-23

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