JPS56103310A - System for controlling distance from target by using reflection type optical sensor - Google Patents

System for controlling distance from target by using reflection type optical sensor

Info

Publication number
JPS56103310A
JPS56103310A JP607180A JP607180A JPS56103310A JP S56103310 A JPS56103310 A JP S56103310A JP 607180 A JP607180 A JP 607180A JP 607180 A JP607180 A JP 607180A JP S56103310 A JPS56103310 A JP S56103310A
Authority
JP
Japan
Prior art keywords
outputs
target
sensors
distance
type optical
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
JP607180A
Other languages
Japanese (ja)
Inventor
Masahiko Hase
Haruhisa Kawasaki
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP607180A priority Critical patent/JPS56103310A/en
Publication of JPS56103310A publication Critical patent/JPS56103310A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C3/00—Measuring distances in line of sight; Optical rangefinders
    • G01C3/02—Details
    • G01C3/06—Use of electric means to obtain final indication
    • G01C3/08—Use of electric radiation detectors

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Measurement Of Optical Distance (AREA)

Abstract

PURPOSE:To obtain a distance signal accurately even if the reflectance of a target fluctuates by setting two sensors by leaving these at a certain fixed distance and adding, subtracting and dividing the outputs thereof. CONSTITUTION:Reflection type optical sensors 1, 2 are set by leaving a given space between sensors 1, 2. The outputs of the sensors 1, 2 are amplified with amplifiers 3, 4, and the difference in the outputs of the sensors 1, 2 is obtained in an arithmetic part 6. In an arithmetic part 7, the sum of the outputs of the sensors 1, 2 is obtained. An arithmetic part 8 obtains the sensor outputs for the distance from the difference from the sum of the sensor outputs based on these outputs. Thereby, the curve of the sensor outputs for the distance up to the target 5 is determined irrespective of the reflectance of the target 5.
JP607180A 1980-01-22 1980-01-22 System for controlling distance from target by using reflection type optical sensor Pending JPS56103310A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP607180A JPS56103310A (en) 1980-01-22 1980-01-22 System for controlling distance from target by using reflection type optical sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP607180A JPS56103310A (en) 1980-01-22 1980-01-22 System for controlling distance from target by using reflection type optical sensor

Publications (1)

Publication Number Publication Date
JPS56103310A true JPS56103310A (en) 1981-08-18

Family

ID=11628336

Family Applications (1)

Application Number Title Priority Date Filing Date
JP607180A Pending JPS56103310A (en) 1980-01-22 1980-01-22 System for controlling distance from target by using reflection type optical sensor

Country Status (1)

Country Link
JP (1) JPS56103310A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4488813A (en) * 1982-04-29 1984-12-18 Mechanical Technology Incorporated Reflectivity compensating system for fiber optic sensor employing dual probes at a fixed gap differential
JPS61155909A (en) * 1984-12-28 1986-07-15 Machida Seisakusho:Kk Apparatus for measuring distance
JPH0493706A (en) * 1990-08-10 1992-03-26 Stanley Electric Co Ltd Optical measuring apparatus
EP1271183A2 (en) * 2001-06-29 2003-01-02 Sick AG Optoelectronic sensor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4926671U (en) * 1972-06-09 1974-03-07
JPS5023247A (en) * 1973-06-29 1975-03-12

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4926671U (en) * 1972-06-09 1974-03-07
JPS5023247A (en) * 1973-06-29 1975-03-12

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4488813A (en) * 1982-04-29 1984-12-18 Mechanical Technology Incorporated Reflectivity compensating system for fiber optic sensor employing dual probes at a fixed gap differential
JPS61155909A (en) * 1984-12-28 1986-07-15 Machida Seisakusho:Kk Apparatus for measuring distance
JPH0493706A (en) * 1990-08-10 1992-03-26 Stanley Electric Co Ltd Optical measuring apparatus
EP1271183A2 (en) * 2001-06-29 2003-01-02 Sick AG Optoelectronic sensor
EP1271183A3 (en) * 2001-06-29 2003-10-22 Sick AG Optoelectronic sensor
US6943338B2 (en) 2001-06-29 2005-09-13 Sick Ag Optoelectronic sensor

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