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GB2082765B - Optical/pressure switch - Google Patents

Optical/pressure switch

Info

Publication number
GB2082765B
GB2082765B GB8027234A GB8027234A GB2082765B GB 2082765 B GB2082765 B GB 2082765B GB 8027234 A GB8027234 A GB 8027234A GB 8027234 A GB8027234 A GB 8027234A GB 2082765 B GB2082765 B GB 2082765B
Authority
GB
United Kingdom
Prior art keywords
optical
pressure switch
switch
pressure
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
GB8027234A
Other versions
GB2082765A (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.)
STC PLC
Original Assignee
Standard Telephone and Cables 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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB8027234A priority Critical patent/GB2082765B/en
Publication of GB2082765A publication Critical patent/GB2082765A/en
Application granted granted Critical
Publication of GB2082765B publication Critical patent/GB2082765B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/24—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/20—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow
    • G01F1/32—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow using swirl flowmeters
    • G01F1/325—Means for detecting quantities used as proxy variables for swirl
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/06—Indicating or recording devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/16—Measuring force or stress, in general using properties of piezoelectric devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
    • G01L11/02—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00 by optical means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Measuring Fluid Pressure (AREA)
GB8027234A 1980-08-21 1980-08-21 Optical/pressure switch Expired GB2082765B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8027234A GB2082765B (en) 1980-08-21 1980-08-21 Optical/pressure switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8027234A GB2082765B (en) 1980-08-21 1980-08-21 Optical/pressure switch

Publications (2)

Publication Number Publication Date
GB2082765A GB2082765A (en) 1982-03-10
GB2082765B true GB2082765B (en) 1984-04-18

Family

ID=10515591

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8027234A Expired GB2082765B (en) 1980-08-21 1980-08-21 Optical/pressure switch

Country Status (1)

Country Link
GB (1) GB2082765B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985005447A1 (en) * 1984-05-24 1985-12-05 Thalmond Anstalt Device for measuring a physical magnitude

Also Published As

Publication number Publication date
GB2082765A (en) 1982-03-10

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Legal Events

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