GB2172125B - Opto-hydraulic servo valve - Google Patents

Opto-hydraulic servo valve

Info

Publication number
GB2172125B
GB2172125B GB08505924A GB8505924A GB2172125B GB 2172125 B GB2172125 B GB 2172125B GB 08505924 A GB08505924 A GB 08505924A GB 8505924 A GB8505924 A GB 8505924A GB 2172125 B GB2172125 B GB 2172125B
Authority
GB
United Kingdom
Prior art keywords
opto
servo valve
hydraulic servo
hydraulic
valve
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
GB08505924A
Other versions
GB2172125A (en
GB8505924D0 (en
Inventor
Arthur Edward Brewster
Gilles David Pitt
Roger Edward Jones
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.)
STC PLC
Original Assignee
STC 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 STC PLC filed Critical STC PLC
Priority to GB08505924A priority Critical patent/GB2172125B/en
Publication of GB8505924D0 publication Critical patent/GB8505924D0/en
Publication of GB2172125A publication Critical patent/GB2172125A/en
Application granted granted Critical
Publication of GB2172125B publication Critical patent/GB2172125B/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
    • 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
    • G01D5/268—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 using optical fibres

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Servomotors (AREA)
GB08505924A 1985-03-07 1985-03-07 Opto-hydraulic servo valve Expired GB2172125B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08505924A GB2172125B (en) 1985-03-07 1985-03-07 Opto-hydraulic servo valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08505924A GB2172125B (en) 1985-03-07 1985-03-07 Opto-hydraulic servo valve

Publications (3)

Publication Number Publication Date
GB8505924D0 GB8505924D0 (en) 1985-04-11
GB2172125A GB2172125A (en) 1986-09-10
GB2172125B true GB2172125B (en) 1988-09-14

Family

ID=10575606

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08505924A Expired GB2172125B (en) 1985-03-07 1985-03-07 Opto-hydraulic servo valve

Country Status (1)

Country Link
GB (1) GB2172125B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2642812B1 (en) * 1989-02-08 1991-05-31 Crouzet Sa PIEZOELECTRIC OPTICALLY CONTROLLED FLUID SWITCHING DEVICE
NL9400660A (en) * 1994-04-25 1995-12-01 Averyck Eng Consultants Bv Dispenser for an aerosol.
GB2420383B (en) 2003-09-09 2008-02-20 Iptech Ltd Spray dispenser activated by sensed light level

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2115183B (en) * 1982-01-22 1985-10-09 Marconi Co Ltd Apparatus for controlling the position or movement of a member

Also Published As

Publication number Publication date
GB2172125A (en) 1986-09-10
GB8505924D0 (en) 1985-04-11

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Legal Events

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