GB2165062B - An optical sensor - Google Patents

An optical sensor

Info

Publication number
GB2165062B
GB2165062B GB08424587A GB8424587A GB2165062B GB 2165062 B GB2165062 B GB 2165062B GB 08424587 A GB08424587 A GB 08424587A GB 8424587 A GB8424587 A GB 8424587A GB 2165062 B GB2165062 B GB 2165062B
Authority
GB
United Kingdom
Prior art keywords
optical sensor
optical
sensor
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
Application number
GB08424587A
Other versions
GB2165062A (en
Inventor
David John Webb
Martin John Collier
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB08424587A priority Critical patent/GB2165062B/en
Publication of GB2165062A publication Critical patent/GB2165062A/en
Application granted granted Critical
Publication of GB2165062B publication Critical patent/GB2165062B/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15C—FLUID-CIRCUIT ELEMENTS PREDOMINANTLY USED FOR COMPUTING OR CONTROL PURPOSES
    • F15C1/00—Circuit elements having no moving parts
    • F15C1/02—Details, e.g. special constructional devices for circuits with fluid elements, such as resistances, capacitive circuit elements; devices preventing reaction coupling in composite elements ; Switch boards; Programme devices
    • F15C1/04—Means for controlling fluid streams to fluid devices, e.g. by electric signals or other signals, no mixing taking place between the signal and the flow to be controlled

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)
GB08424587A 1984-09-28 1984-09-28 An optical sensor Expired GB2165062B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08424587A GB2165062B (en) 1984-09-28 1984-09-28 An optical sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08424587A GB2165062B (en) 1984-09-28 1984-09-28 An optical sensor

Publications (2)

Publication Number Publication Date
GB2165062A GB2165062A (en) 1986-04-03
GB2165062B true GB2165062B (en) 1988-10-05

Family

ID=10567422

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08424587A Expired GB2165062B (en) 1984-09-28 1984-09-28 An optical sensor

Country Status (1)

Country Link
GB (1) GB2165062B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8707528D0 (en) * 1987-03-30 1987-05-07 Plessey Co Plc Operating control arrangements for fluidic devices
US5103830A (en) * 1989-10-05 1992-04-14 Terumo Kabushiki Kaisha Electronic sphygmomanometer
GB9008153D0 (en) * 1990-04-10 1990-06-06 Norgren Martonair Ltd Pneumatic actuator
GB2276958A (en) * 1993-04-01 1994-10-12 Nigel Howard Mckrill Light controlled pneumatic fast-response actuator
DE69841500D1 (en) * 1997-05-02 2010-03-25 Baker Hughes Inc Method and device for controlling a chemical injection of a surface treatment system
US6281489B1 (en) 1997-05-02 2001-08-28 Baker Hughes Incorporated Monitoring of downhole parameters and tools utilizing fiber optics

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3228411A (en) * 1964-01-22 1966-01-11 Harald W Straub Light transducer for fluid amplifier
US3568693A (en) * 1967-04-28 1971-03-09 Martin Marietta Corp Fluidic sensing device and method
US3591809A (en) * 1969-01-27 1971-07-06 Johnson Service Co Fluidic radiation sensor varying the viscosity of a fluid stream
US4184768A (en) * 1977-11-04 1980-01-22 The Johns Hopkins University Self-calibrating photoacoustic apparatus for measuring light intensity and light absorption

Also Published As

Publication number Publication date
GB2165062A (en) 1986-04-03

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Legal Events

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