GB2003693A - Optical determination of surface contours - Google Patents

Optical determination of surface contours

Info

Publication number
GB2003693A
GB2003693A GB7834575A GB7834575A GB2003693A GB 2003693 A GB2003693 A GB 2003693A GB 7834575 A GB7834575 A GB 7834575A GB 7834575 A GB7834575 A GB 7834575A GB 2003693 A GB2003693 A GB 2003693A
Authority
GB
United Kingdom
Prior art keywords
scanned
monitored
produces
image
laser radiation
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
GB7834575A
Other versions
GB2003693B (en
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.)
Semperit AG Holding
Original Assignee
Semperit AG Holding
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 Semperit AG Holding filed Critical Semperit AG Holding
Publication of GB2003693A publication Critical patent/GB2003693A/en
Application granted granted Critical
Publication of GB2003693B publication Critical patent/GB2003693B/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
    • 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)
  • Computer Networks & Wireless Communication (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Optical Head (AREA)

Abstract

A laser 3 produces a beam which is scanned by means of a controllable diffraction grating 7 and is focussed onto a body 1 whose surface geometry is to be monitored. A photo-detector 11 receives laser radiation reflected from body 1 via an axially vibrating aperture device 10 and produces an output- signal dependent on the position of the image of the laser radiation on the body, relative to the centre of vibration. This output signal, via an amplifier 13, is taken to processing equipment for analysis. Body 1 (shown in cross-section) is elongate and moves axially whilst being scanned. Therefore a complete picture of the scanned surface may be obtained. By using a plurality of lasers and detectors around the body the whole surface of body 1 may be monitored. <IMAGE>
GB7834575A 1977-08-29 1978-08-25 Methods and apparatus for monitoring a body surface Expired GB2003693B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1049277A CH618261A5 (en) 1977-08-29 1977-08-29

Publications (2)

Publication Number Publication Date
GB2003693A true GB2003693A (en) 1979-03-14
GB2003693B GB2003693B (en) 1982-05-06

Family

ID=4363801

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7834575A Expired GB2003693B (en) 1977-08-29 1978-08-25 Methods and apparatus for monitoring a body surface

Country Status (4)

Country Link
CH (1) CH618261A5 (en)
DE (1) DE2836245A1 (en)
FR (1) FR2402185A1 (en)
GB (1) GB2003693B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3685983A1 (en) * 2019-01-23 2020-07-29 Proton Products International Limited Apparatus for outline measurements of moving objects

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8310611D0 (en) * 1983-04-19 1983-05-25 Beta Instr Co Measurement of profiles of irregular objects
DE3543632A1 (en) * 1985-12-11 1987-06-19 Hoechst Ag METHOD AND DEVICE FOR DETERMINING THICKNESS AND / OR ORIENTATION CHANGES WITHIN AN OPTICALLY ACTIVE MATERIAL RAIL

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3685983A1 (en) * 2019-01-23 2020-07-29 Proton Products International Limited Apparatus for outline measurements of moving objects
US10816329B2 (en) 2019-01-23 2020-10-27 Proton Products International Limited Outline measurement of moving objects

Also Published As

Publication number Publication date
GB2003693B (en) 1982-05-06
FR2402185A1 (en) 1979-03-30
DE2836245A1 (en) 1979-03-15
CH618261A5 (en) 1980-07-15

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee