WO2001044834A3 - 3d motion distant measuring device from a single reference point - Google Patents

3d motion distant measuring device from a single reference point Download PDF

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Publication number
WO2001044834A3
WO2001044834A3 PCT/IT2000/000523 IT0000523W WO0144834A3 WO 2001044834 A3 WO2001044834 A3 WO 2001044834A3 IT 0000523 W IT0000523 W IT 0000523W WO 0144834 A3 WO0144834 A3 WO 0144834A3
Authority
WO
WIPO (PCT)
Prior art keywords
laser
refractive element
displacements
ray
instrument
Prior art date
Application number
PCT/IT2000/000523
Other languages
French (fr)
Other versions
WO2001044834A2 (en
Inventor
Guido A Danieli
Original Assignee
Guido A Danieli
Luise Nadia Silvana
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 Guido A Danieli, Luise Nadia Silvana filed Critical Guido A Danieli
Priority to EP00988998A priority Critical patent/EP1309886A2/en
Publication of WO2001044834A2 publication Critical patent/WO2001044834A2/en
Publication of WO2001044834A3 publication Critical patent/WO2001044834A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • 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
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/16—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using electromagnetic waves other than radio waves
    • 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
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
    • G01S17/06—Systems determining position data of a target
    • G01S17/08—Systems determining position data of a target for measuring distance only
    • G01S17/32—Systems determining position data of a target for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
    • G01S17/36—Systems determining position data of a target for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated with phase comparison between the received signal and the contemporaneously transmitted signal

Landscapes

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

Abstract

The present invention is relative to a measuring device of the components of the displacement of one point in three perpendicular directions. Base of the instrument, a Laser distance measuring system, that, measuring the phase shift of the ray refracted by a refracting element placed on the point of measure, supplies with millimetric precision the variation of the distance between laser source and refractive element. The conventional instrument is not however able to measure displacements in a plane perpendicular to the laser ray. The present invention instead, adding to the refractive element a video camera, mounted with the refractive element on a plate motorised by two step motors, and a second light source parallel to the first laser to generate on the video camera sensor a light spot, allows, analysing the digital image, to maintain always the refractive element centred with respect to the ray, acting on the step motors. Since the displacements necessary to maintain the image centred are exactly opposite to those of which the instrument is displaced, the simple recording of the movements supplies the two perpendicular components. A second possible configuration is also presented, characterised by an inferior sensitivity to x, y displacements.
PCT/IT2000/000523 1999-12-15 2000-12-15 3d motion distant measuring device from a single reference point WO2001044834A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP00988998A EP1309886A2 (en) 1999-12-15 2000-12-15 3d motion distant measuring device from a single reference point

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITCS99A000021 1999-12-15
IT99CS000021A ITCS990021A1 (en) 1999-12-15 1999-12-15 THREE-DIMENSIONAL RELATIVE MOTION DISTANCE METER THROUGH GIA LASER TECHNOLOGY, ABLE TO PROVIDE THE VALUES OF THE MOVEMENTS OF THE M-POINT

Publications (2)

Publication Number Publication Date
WO2001044834A2 WO2001044834A2 (en) 2001-06-21
WO2001044834A3 true WO2001044834A3 (en) 2002-07-11

Family

ID=11348390

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2000/000523 WO2001044834A2 (en) 1999-12-15 2000-12-15 3d motion distant measuring device from a single reference point

Country Status (3)

Country Link
EP (1) EP1309886A2 (en)
IT (1) ITCS990021A1 (en)
WO (1) WO2001044834A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ305329B6 (en) * 2010-01-25 2015-08-05 Univerzita Tomáše Bati ve Zlíně Method of minimizing projection error when scanning and analyzing processes by camera system and apparatus for making the same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0641993A2 (en) * 1993-09-03 1995-03-08 Canon Kabushiki Kaisha Shape measuring apparatus
EP0661520A1 (en) * 1993-12-28 1995-07-05 Nikon Corporation Laser surveying system
EP0919830A2 (en) * 1997-10-17 1999-06-02 The Secretary of State for Trade and Industry of Her Majesty's Britannic Government Tracking system
US5940180A (en) * 1994-10-11 1999-08-17 Giddings & Lewis Laser interferometer measurement system for use with machine tools

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0641993A2 (en) * 1993-09-03 1995-03-08 Canon Kabushiki Kaisha Shape measuring apparatus
EP0661520A1 (en) * 1993-12-28 1995-07-05 Nikon Corporation Laser surveying system
US5940180A (en) * 1994-10-11 1999-08-17 Giddings & Lewis Laser interferometer measurement system for use with machine tools
EP0919830A2 (en) * 1997-10-17 1999-06-02 The Secretary of State for Trade and Industry of Her Majesty's Britannic Government Tracking system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
LEIGH-LANCASTER C J ET AL: "Development of a laser tracking system", MECHATRONICS AND MACHINE VISION IN PRACTICE, 1997. PROCEEDINGS., FOURTH ANNUAL CONFERENCE ON TOOWOOMBA, QLD., AUSTRALIA 23-25 SEPT. 1997, LOS ALAMITOS, CA, USA,IEEE COMPUT. SOC, US, 23 September 1997 (1997-09-23), pages 163 - 168, XP010248272, ISBN: 0-8186-8025-3 *

Also Published As

Publication number Publication date
WO2001044834A2 (en) 2001-06-21
EP1309886A2 (en) 2003-05-14
ITCS990021A1 (en) 2000-03-15

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