JPS5235679A - Speed measuring device - Google Patents

Speed measuring device

Info

Publication number
JPS5235679A
JPS5235679A JP11085975A JP11085975A JPS5235679A JP S5235679 A JPS5235679 A JP S5235679A JP 11085975 A JP11085975 A JP 11085975A JP 11085975 A JP11085975 A JP 11085975A JP S5235679 A JPS5235679 A JP S5235679A
Authority
JP
Japan
Prior art keywords
measuring device
speed measuring
grid
face
slit
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
JP11085975A
Other languages
Japanese (ja)
Other versions
JPS5950938B2 (en
Inventor
Toshiji Yanagisawa
Nobuhiro Sano
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.)
Koito Manufacturing Co Ltd
Original Assignee
Koito Manufacturing 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 Koito Manufacturing Co Ltd filed Critical Koito Manufacturing Co Ltd
Priority to JP11085975A priority Critical patent/JPS5950938B2/en
Publication of JPS5235679A publication Critical patent/JPS5235679A/en
Publication of JPS5950938B2 publication Critical patent/JPS5950938B2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/50—Systems of measurement based on relative movement of target
    • G01S13/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
    • G01S13/60—Velocity or trajectory determination systems; Sense-of-movement determination systems wherein the transmitter and receiver are mounted on the moving object, e.g. for determining ground speed, drift angle, ground track
    • G01S13/605—Velocity or trajectory determination systems; Sense-of-movement determination systems wherein the transmitter and receiver are mounted on the moving object, e.g. for determining ground speed, drift angle, ground track using a pattern, backscattered from the ground, to determine speed or drift by measuring the time required to cover a fixed distance

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

PURPOSE:To provide an optical system in front of a grid-form slit and continuously changing the size of a projected image on the grid-type slit face, thereby measuring relative speeds with object face at sufficient accuracy based on the electrical outputs of a receiving photoelectroc conversion element.
JP11085975A 1975-09-16 1975-09-16 speed measuring device Expired JPS5950938B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11085975A JPS5950938B2 (en) 1975-09-16 1975-09-16 speed measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11085975A JPS5950938B2 (en) 1975-09-16 1975-09-16 speed measuring device

Publications (2)

Publication Number Publication Date
JPS5235679A true JPS5235679A (en) 1977-03-18
JPS5950938B2 JPS5950938B2 (en) 1984-12-11

Family

ID=14546469

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11085975A Expired JPS5950938B2 (en) 1975-09-16 1975-09-16 speed measuring device

Country Status (1)

Country Link
JP (1) JPS5950938B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003215143A (en) * 2002-01-17 2003-07-30 Sharp Corp Optical movement detection device and transport processing system including the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003215143A (en) * 2002-01-17 2003-07-30 Sharp Corp Optical movement detection device and transport processing system including the same

Also Published As

Publication number Publication date
JPS5950938B2 (en) 1984-12-11

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