JPS56147006A - Inclination detector - Google Patents

Inclination detector

Info

Publication number
JPS56147006A
JPS56147006A JP5017680A JP5017680A JPS56147006A JP S56147006 A JPS56147006 A JP S56147006A JP 5017680 A JP5017680 A JP 5017680A JP 5017680 A JP5017680 A JP 5017680A JP S56147006 A JPS56147006 A JP S56147006A
Authority
JP
Japan
Prior art keywords
light
light emitting
phase
target
phototransistor
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
JP5017680A
Other languages
Japanese (ja)
Other versions
JPS6046363B2 (en
Inventor
Kensuke Hasegawa
Ryosuke Masuda
Shuichi Sasa
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.)
Motoda Electronics Co Ltd
Original Assignee
Motoda Electronics 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 Motoda Electronics Co Ltd filed Critical Motoda Electronics Co Ltd
Priority to JP5017680A priority Critical patent/JPS6046363B2/en
Publication of JPS56147006A publication Critical patent/JPS56147006A/en
Publication of JPS6046363B2 publication Critical patent/JPS6046363B2/en
Expired 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

Landscapes

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

Abstract

PURPOSE:To make the device small in size, light in weight and low in cost and facilitate signal processing by projecting the repetitive pulse light signals differing in phase by 90 deg. from a pair of light emitting elements to a target surface, and detecting the phase deviation of the irregularly reflected light via a photodetector provided at the intermediate of both light emitting elements. CONSTITUTION:A pair of light emitting diodes 1, 2 of GaAs or the like and one phototransistor 4 are disposed opposedly to a target 5 at a fixed space. The square wave pulse light signals differing in phase by 90 deg. are outputted from light emitting diodes 1 and 2, and the scattered light from the surface P of the target 5 is detected in a phototransistor 4. The outputs thereof are sent to a multiplier 22 via an amplifier 12, a band-pass filter 13, and AGC 14, and a aquare wave converting circuit 21, by which the phase difference is determined from the product of the pulse signal from an oscillator 10 and the inclination of the surface P is displayed in size and light in weight and the signal processing is made easy.
JP5017680A 1980-04-16 1980-04-16 tilt detector Expired JPS6046363B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5017680A JPS6046363B2 (en) 1980-04-16 1980-04-16 tilt detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5017680A JPS6046363B2 (en) 1980-04-16 1980-04-16 tilt detector

Publications (2)

Publication Number Publication Date
JPS56147006A true JPS56147006A (en) 1981-11-14
JPS6046363B2 JPS6046363B2 (en) 1985-10-15

Family

ID=12851881

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5017680A Expired JPS6046363B2 (en) 1980-04-16 1980-04-16 tilt detector

Country Status (1)

Country Link
JP (1) JPS6046363B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6042607A (en) * 1983-07-15 1985-03-06 テイ−ア−ルダブリユ−・インコ−ポレ−テツド Position display device using optical guide
JPS6123907A (en) * 1984-07-11 1986-02-01 West Electric Co Ltd Range measuring device utilizing photodetection quantity detection system
US7000476B2 (en) 2002-02-15 2006-02-21 Mitsubishi Denki Kabushiki Kaisha Inclination angle measurement apparatus
JP2008268181A (en) * 2007-03-26 2008-11-06 Casio Comput Co Ltd Projector
JP2020201072A (en) * 2019-06-07 2020-12-17 国立大学法人 東京大学 Array type proximity sensor

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6042607A (en) * 1983-07-15 1985-03-06 テイ−ア−ルダブリユ−・インコ−ポレ−テツド Position display device using optical guide
JPS6123907A (en) * 1984-07-11 1986-02-01 West Electric Co Ltd Range measuring device utilizing photodetection quantity detection system
JPH0365870B2 (en) * 1984-07-11 1991-10-15
US7000476B2 (en) 2002-02-15 2006-02-21 Mitsubishi Denki Kabushiki Kaisha Inclination angle measurement apparatus
JP2008268181A (en) * 2007-03-26 2008-11-06 Casio Comput Co Ltd Projector
JP2020201072A (en) * 2019-06-07 2020-12-17 国立大学法人 東京大学 Array type proximity sensor

Also Published As

Publication number Publication date
JPS6046363B2 (en) 1985-10-15

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