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FI933818A - For the purposes of this Regulation - Google Patents

For the purposes of this Regulation Download PDF

Info

Publication number
FI933818A
FI933818A FI933818A FI933818A FI933818A FI 933818 A FI933818 A FI 933818A FI 933818 A FI933818 A FI 933818A FI 933818 A FI933818 A FI 933818A FI 933818 A FI933818 A FI 933818A
Authority
FI
Finland
Prior art keywords
angle
light
roughness
bundles
signals
Prior art date
Application number
FI933818A
Other languages
Finnish (fi)
Other versions
FI933818A0 (en
Inventor
Guido Wurbs
Bertold Krueger
Original Assignee
Betr Forsch Inst Angew Forsch
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 Betr Forsch Inst Angew Forsch filed Critical Betr Forsch Inst Angew Forsch
Publication of FI933818A0 publication Critical patent/FI933818A0/en
Publication of FI933818A publication Critical patent/FI933818A/en

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
    • 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
    • G01S17/46—Indirect determination of position data
    • G01S17/48—Active triangulation systems, i.e. using the transmission and reflection of electromagnetic waves other than radio waves
    • 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
    • G01B11/30—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces
    • G01B11/303—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces using photoelectric detection means
    • 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
    • G01S17/88—Lidar systems specially adapted for specific applications
    • G01S17/89—Lidar systems specially adapted for specific applications for mapping or imaging

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Measurement Of Optical Distance (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Centrifugal Separators (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Mechanical Operated Clutches (AREA)
  • Control Of Combustion (AREA)

Abstract

In order to measure chiefly the roughness of surfaces, the invention proceeds from the triangulation method by means of a laser, in which the angle between the surface and the measurement beam can be adjusted. The light spot produced on the surface must be smaller the more accurate the resolution is to be. In practice, in these regions interference phenomena occur which, acting as speckle, disturb the measurement signal through noise, The invention substantially improves the extent to which the received signals can be evaluated by virtue of the fact that the light bundle reflected/scattered by the surface is resolved optically, as a function of the angle, into two component bundles having approximately the same area distribution of intensity transverse to the principle beam direction, and that the two light bundles are then detected by photodiode and the roughness characteristics are determined from the signals. <IMAGE>
FI933818A 1992-09-02 1993-09-01 For the purposes of this Regulation FI933818A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4229313A DE4229313A1 (en) 1992-09-02 1992-09-02 Method and device for high-precision distance measurement of surfaces

Publications (2)

Publication Number Publication Date
FI933818A0 FI933818A0 (en) 1993-09-01
FI933818A true FI933818A (en) 1994-03-03

Family

ID=6467063

Family Applications (1)

Application Number Title Priority Date Filing Date
FI933818A FI933818A (en) 1992-09-02 1993-09-01 For the purposes of this Regulation

Country Status (5)

Country Link
EP (1) EP0585893B1 (en)
JP (1) JP4130236B2 (en)
AT (1) ATE173814T1 (en)
DE (2) DE4229313A1 (en)
FI (1) FI933818A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113077506A (en) * 2021-06-04 2021-07-06 深圳联合安防科技有限公司 Object safety monitoring method based on image processing and control terminal

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4420293A1 (en) * 1994-06-10 1995-12-14 Dresden Messelektronik Gmbh Device for the contactless determination of the surface profile of a workpiece
DE4445535A1 (en) * 1994-12-20 1996-06-27 Tr Elektronic Gmbh Optical sensor for measuring distance
US6428171B1 (en) 1997-05-16 2002-08-06 Olympus Optical Co., Ltd. Height measuring apparatus
IL180964A (en) * 2002-09-05 2010-11-30 Inventio Ag Drive engine for a lift installation and method of mounting a drive engine
DE102010033373A1 (en) 2010-08-04 2012-02-09 Inficon Gmbh Leak Detector
JP2014232005A (en) 2013-05-28 2014-12-11 富士ゼロックス株式会社 Measurement device
JP2017003461A (en) 2015-06-11 2017-01-05 東芝テック株式会社 Distance measurement device
EP3130941B1 (en) * 2015-08-14 2017-10-18 Sick Ag Light sensor
DE102017204550A1 (en) * 2017-03-20 2018-09-20 Robert Bosch Gmbh Transmitter optics for a LiDAR system, LiDAR system and working device
DE102018128269A1 (en) 2018-11-12 2020-05-14 Monti-Werkzeuge Gmbh Process for machining a surface of a workpiece

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5990007A (en) * 1982-11-16 1984-05-24 Olympus Optical Co Ltd Optical size measuring device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113077506A (en) * 2021-06-04 2021-07-06 深圳联合安防科技有限公司 Object safety monitoring method based on image processing and control terminal
CN113077506B (en) * 2021-06-04 2021-08-10 深圳联合安防科技有限公司 Object safety monitoring method based on image processing and control terminal

Also Published As

Publication number Publication date
JPH06213658A (en) 1994-08-05
FI933818A0 (en) 1993-09-01
ATE173814T1 (en) 1998-12-15
JP4130236B2 (en) 2008-08-06
EP0585893A1 (en) 1994-03-09
DE4229313A1 (en) 1994-03-03
DE59309152D1 (en) 1999-01-07
EP0585893B1 (en) 1998-11-25

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