GB2236178B - Monitoring arrangements - Google Patents

Monitoring arrangements

Info

Publication number
GB2236178B
GB2236178B GB8921269A GB8921269A GB2236178B GB 2236178 B GB2236178 B GB 2236178B GB 8921269 A GB8921269 A GB 8921269A GB 8921269 A GB8921269 A GB 8921269A GB 2236178 B GB2236178 B GB 2236178B
Authority
GB
United Kingdom
Prior art keywords
monitoring arrangements
arrangements
monitoring
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.)
Expired - Fee Related
Application number
GB8921269A
Other versions
GB8921269D0 (en
GB2236178A (en
Inventor
Roger Martin Langdon
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.)
BAE Systems Electronics Ltd
Original Assignee
GEC Marconi Ltd
Marconi 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 GEC Marconi Ltd, Marconi Co Ltd filed Critical GEC Marconi Ltd
Priority to GB8921269A priority Critical patent/GB2236178B/en
Publication of GB8921269D0 publication Critical patent/GB8921269D0/en
Publication of GB2236178A publication Critical patent/GB2236178A/en
Application granted granted Critical
Publication of GB2236178B publication Critical patent/GB2236178B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • 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
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/56—Devices characterised by the use of electric or magnetic means for comparing two speeds
    • G01P3/565—Devices characterised by the use of electric or magnetic means for comparing two speeds by measuring or by comparing the phase of generated current or voltage
    • 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
    • G01S17/87—Combinations of systems using electromagnetic waves other than radio waves
    • G01S17/875—Combinations of systems using electromagnetic waves other than radio waves for determining attitude

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Power Engineering (AREA)
  • Length Measuring Devices By Optical Means (AREA)
GB8921269A 1989-09-20 1989-09-20 Monitoring arrangements Expired - Fee Related GB2236178B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8921269A GB2236178B (en) 1989-09-20 1989-09-20 Monitoring arrangements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8921269A GB2236178B (en) 1989-09-20 1989-09-20 Monitoring arrangements

Publications (3)

Publication Number Publication Date
GB8921269D0 GB8921269D0 (en) 1990-05-30
GB2236178A GB2236178A (en) 1991-03-27
GB2236178B true GB2236178B (en) 1993-09-01

Family

ID=10663366

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8921269A Expired - Fee Related GB2236178B (en) 1989-09-20 1989-09-20 Monitoring arrangements

Country Status (1)

Country Link
GB (1) GB2236178B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2949263B1 (en) * 2009-08-24 2011-08-26 Astrium Sas MEASURING A SPEED OF MOVING A MOBILE ELEMENT
DE112014006641A5 (en) * 2014-05-05 2017-01-26 Carl Zeiss Industrielle Messtechnik Gmbh Coordinate measuring device for determining geometric properties of a measurement object

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1364487A (en) * 1970-07-09 1974-08-21 Philips Electronic Associated Optical position measurement apparatus
EP0144510A1 (en) * 1983-07-20 1985-06-19 Zygo Corporation Interferometric wavefront measurement
US4558952A (en) * 1983-02-22 1985-12-17 Kules Vladimir P Method for measuring an optical length of light path and a laser interferometer for carrying same into effect
US4586821A (en) * 1984-09-19 1986-05-06 The United States Of America As Represented By The Secretary Of The Army Optical angular/linear motion detector
EP0248277A2 (en) * 1986-06-03 1987-12-09 Optra, Inc. Two-frequency laser rotation sensor system
EP0297243A2 (en) * 1987-05-29 1989-01-04 Hommelwerke GmbH Device to measure the distance between this device and a surface
GB2218505A (en) * 1988-05-10 1989-11-15 Gen Electric Co Plc Optical position measurement

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1364487A (en) * 1970-07-09 1974-08-21 Philips Electronic Associated Optical position measurement apparatus
US4558952A (en) * 1983-02-22 1985-12-17 Kules Vladimir P Method for measuring an optical length of light path and a laser interferometer for carrying same into effect
EP0144510A1 (en) * 1983-07-20 1985-06-19 Zygo Corporation Interferometric wavefront measurement
US4586821A (en) * 1984-09-19 1986-05-06 The United States Of America As Represented By The Secretary Of The Army Optical angular/linear motion detector
EP0248277A2 (en) * 1986-06-03 1987-12-09 Optra, Inc. Two-frequency laser rotation sensor system
EP0297243A2 (en) * 1987-05-29 1989-01-04 Hommelwerke GmbH Device to measure the distance between this device and a surface
GB2218505A (en) * 1988-05-10 1989-11-15 Gen Electric Co Plc Optical position measurement

Also Published As

Publication number Publication date
GB8921269D0 (en) 1990-05-30
GB2236178A (en) 1991-03-27

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19931201