JPS57114861A - Position and speed measuring device - Google Patents

Position and speed measuring device

Info

Publication number
JPS57114861A
JPS57114861A JP117581A JP117581A JPS57114861A JP S57114861 A JPS57114861 A JP S57114861A JP 117581 A JP117581 A JP 117581A JP 117581 A JP117581 A JP 117581A JP S57114861 A JPS57114861 A JP S57114861A
Authority
JP
Japan
Prior art keywords
travelling
speed
projector
operator
opposite
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
JP117581A
Other languages
Japanese (ja)
Inventor
Fumio Sato
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 JP117581A priority Critical patent/JPS57114861A/en
Publication of JPS57114861A publication Critical patent/JPS57114861A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/36—Devices characterised by the use of optical means, e.g. using infrared, visible, or ultraviolet light

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Optical Transform (AREA)

Abstract

PURPOSE:To realize the measurement of speed for a travelling object in a low speed and in a short interval of measurement, by projecting a beam turning opposite to the moving direction of a travelling object to the travelling object and detecting the reflected beam of the object. CONSTITUTION:A beams 3 having plural characteristic images of projection are projected at a time to an object 1 having parallel faces in its travelling direction through the side of the object 1 and by means of a projector 2. These beams 3 turn opposite to the travelling direction of the object 1, and accordingly plural characteristic images travelling opposite to the travelling direction of the object 1 are projected successively onto the object 1. The reflected beam 4 is received at a receiver 5, and the features of the proejcted images are extracted by a signal detector 6. The angle theta which is formed by a straight line connecting the tips of the projector 2 and the object 1 and a vertical line onto the face of the object 1 is obtained from the speed of revolution of the beam 3 and the time required from the reference position of the beam to the detection and by an angle operator 7. The position S of the object 1 is obtained from the angle theta plus the distance l between the object 1 and the projector 2 and by a position operator 8. Then the speed is obtained from the present and preceding position signals and a speed operator 12.
JP117581A 1981-01-09 1981-01-09 Position and speed measuring device Pending JPS57114861A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP117581A JPS57114861A (en) 1981-01-09 1981-01-09 Position and speed measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP117581A JPS57114861A (en) 1981-01-09 1981-01-09 Position and speed measuring device

Publications (1)

Publication Number Publication Date
JPS57114861A true JPS57114861A (en) 1982-07-16

Family

ID=11494094

Family Applications (1)

Application Number Title Priority Date Filing Date
JP117581A Pending JPS57114861A (en) 1981-01-09 1981-01-09 Position and speed measuring device

Country Status (1)

Country Link
JP (1) JPS57114861A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009037617A (en) * 2007-08-02 2009-02-19 Dr Johannes Heidenhain Gmbh Position measuring device and method for transmitting movement information
CN103712570A (en) * 2012-10-09 2014-04-09 富士施乐株式会社 Detection apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009037617A (en) * 2007-08-02 2009-02-19 Dr Johannes Heidenhain Gmbh Position measuring device and method for transmitting movement information
CN103712570A (en) * 2012-10-09 2014-04-09 富士施乐株式会社 Detection apparatus
JP2014077660A (en) * 2012-10-09 2014-05-01 Fuji Xerox Co Ltd Detector
US9400342B2 (en) 2012-10-09 2016-07-26 Fuji Xerox Co., Ltd. Detection apparatus

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