GB1068014A - Improvements in or relating to pressure gauges - Google Patents

Improvements in or relating to pressure gauges

Info

Publication number
GB1068014A
GB1068014A GB293365A GB293365A GB1068014A GB 1068014 A GB1068014 A GB 1068014A GB 293365 A GB293365 A GB 293365A GB 293365 A GB293365 A GB 293365A GB 1068014 A GB1068014 A GB 1068014A
Authority
GB
United Kingdom
Prior art keywords
block
bore
polarizer
mount
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
GB293365A
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.)
IVOR HAWKES
Original Assignee
IVOR HAWKES
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 IVOR HAWKES filed Critical IVOR HAWKES
Priority to GB293365A priority Critical patent/GB1068014A/en
Priority to FR46690A priority patent/FR1465090A/en
Publication of GB1068014A publication Critical patent/GB1068014A/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
    • G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
    • G01L7/16—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of pistons
    • 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)
  • Measuring Fluid Pressure (AREA)

Abstract

1,068,014. Photo-elasticimetric apparatus. I. HAWKES and A. ROBERTS. Jan. 19, 1966 [Jan. 22, 1965], No. 2933/65. Heading G2J. A pressure gauge comprises a block 1 of birefringent material housed in a mount 18 having means for its connection to a source of fluid pressure whereby the block 1 is subjected to compressive stress exerted from opposite sides of its periphery, the changes in stress being observed with polarized light. The bi-refringent block 1 and the housing are both of cylindrical shape, the block 1 being mounted in a transverse cylindrical bore 19 in the mount 18. The mount 18 is also provided with an axial bore 20 which intersects the bore 19. Pressure members 21, 22 are housed in the bore 20 on opposite sides of the block 1. The open end 14 of the bore 20 provides access to a source of fluid pressure. The members 21, 22 are shaped to form surface or line contact with the block. A polarizer is placed coaxially at each end of the block 1 to permit observation of fringes within the block 1. The analyzer may be rotatably mounted about the axis of the block 1 to provide goniometric compensation, a scale indicating the degree of rotation in terms of the applied pressure. In modifications the fringes may be observed by reflected light in which case only one polarizer is necessary, a reflecting coating being located at the end of the block 1 remote from the polarizer and a quarter wave plate being arranged behind the polarizer. Also, direct contact between the fluid and the block 1 may be provided. In the gauges of Figs. 13- 15 (not shown) a plurality of fluid pressures are arranged to operate on a single block of birefringent material.
GB293365A 1965-01-22 1965-01-22 Improvements in or relating to pressure gauges Expired GB1068014A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB293365A GB1068014A (en) 1965-01-22 1965-01-22 Improvements in or relating to pressure gauges
FR46690A FR1465090A (en) 1965-01-22 1966-01-21 Hydraulic pressure gauge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB293365A GB1068014A (en) 1965-01-22 1965-01-22 Improvements in or relating to pressure gauges

Publications (1)

Publication Number Publication Date
GB1068014A true GB1068014A (en) 1967-05-10

Family

ID=9748794

Family Applications (1)

Application Number Title Priority Date Filing Date
GB293365A Expired GB1068014A (en) 1965-01-22 1965-01-22 Improvements in or relating to pressure gauges

Country Status (2)

Country Link
FR (1) FR1465090A (en)
GB (1) GB1068014A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0152149A2 (en) * 1984-02-13 1985-08-21 Philips Patentverwaltung GmbH Optical pressure sensor
EP0651878A1 (en) * 1992-07-20 1995-05-10 Invent Engineering Pty. Ltd. Pressure sensor
WO2021094181A1 (en) * 2019-11-15 2021-05-20 Naval Group System for detecting pressure in a chamber

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0152149A2 (en) * 1984-02-13 1985-08-21 Philips Patentverwaltung GmbH Optical pressure sensor
EP0152149A3 (en) * 1984-02-13 1986-09-10 Philips Patentverwaltung Gmbh Optical pressure sensor
EP0651878A1 (en) * 1992-07-20 1995-05-10 Invent Engineering Pty. Ltd. Pressure sensor
EP0651878A4 (en) * 1992-07-20 1996-01-24 Invent Eng Pty Ltd Pressure sensor.
WO2021094181A1 (en) * 2019-11-15 2021-05-20 Naval Group System for detecting pressure in a chamber
FR3103271A1 (en) * 2019-11-15 2021-05-21 Naval Group PRESSURE DETECTION SYSTEM IN AN ENCLOSURE

Also Published As

Publication number Publication date
FR1465090A (en) 1967-01-06

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