JPS57119210A - Distance measuring apparatus - Google Patents

Distance measuring apparatus

Info

Publication number
JPS57119210A
JPS57119210A JP466981A JP466981A JPS57119210A JP S57119210 A JPS57119210 A JP S57119210A JP 466981 A JP466981 A JP 466981A JP 466981 A JP466981 A JP 466981A JP S57119210 A JPS57119210 A JP S57119210A
Authority
JP
Japan
Prior art keywords
light
measured
optical fiber
projected
thickness
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
JP466981A
Other languages
Japanese (ja)
Inventor
Kenji Iwasaki
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP466981A priority Critical patent/JPS57119210A/en
Publication of JPS57119210A publication Critical patent/JPS57119210A/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

Abstract

PURPOSE:To achieve contactless measurement of the position or the thickness of an object to be measured by detecting variations in the quantity of light reflected through an optical fiber and a photoelectric conversion means after the light of the light source is projected to the surface of an object to be measured through an optical fiber. CONSTITUTION:Light of a lamp 13 lighted by a constant voltage supply 12 is projected to the surface of an object 15 to be measured through an optical fiber 14 and the reflected light is led to a light receiving element 17 through an optical fiber 16. The output thereof is compared with the reference value by means of a comparator 1 via an amplifier 18 to express the surface position of the object 15 by a relationship with the preset reference position and the results is displayed on an indicator 20. This enables contactless measurement of the position or the thickness of the object being measured.
JP466981A 1981-01-16 1981-01-16 Distance measuring apparatus Pending JPS57119210A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP466981A JPS57119210A (en) 1981-01-16 1981-01-16 Distance measuring apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP466981A JPS57119210A (en) 1981-01-16 1981-01-16 Distance measuring apparatus

Publications (1)

Publication Number Publication Date
JPS57119210A true JPS57119210A (en) 1982-07-24

Family

ID=11590310

Family Applications (1)

Application Number Title Priority Date Filing Date
JP466981A Pending JPS57119210A (en) 1981-01-16 1981-01-16 Distance measuring apparatus

Country Status (1)

Country Link
JP (1) JPS57119210A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4926671U (en) * 1972-06-09 1974-03-07

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4926671U (en) * 1972-06-09 1974-03-07

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