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GB1119530A - A load change sensing instrument - Google Patents

A load change sensing instrument

Info

Publication number
GB1119530A
GB1119530A GB3278765A GB3278765A GB1119530A GB 1119530 A GB1119530 A GB 1119530A GB 3278765 A GB3278765 A GB 3278765A GB 3278765 A GB3278765 A GB 3278765A GB 1119530 A GB1119530 A GB 1119530A
Authority
GB
United Kingdom
Prior art keywords
instrument
birefringent material
cylinder
body portion
load change
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
GB3278765A
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.)
C I M CONSULTANTS Ltd
Original Assignee
C I M CONSULTANTS 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 C I M CONSULTANTS Ltd filed Critical C I M CONSULTANTS Ltd
Publication of GB1119530A publication Critical patent/GB1119530A/en
Expired 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
    • G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
    • G01B11/18—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge using photoelastic elements

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

1,119,530. Photo-elastic stress indicators. C-I-M CONSULTANTS Ltd. July 30, 1965 [July 31, 1964], No.32787/65. Heading G1W. An instrument for sensing a change in a compressive load or in a tensile load comprises a body portion formed of structurally rigid non- birefringent material, a birefringent material associated with said body portion in fixed relationship thereto and an unhindered bore through said body for applying said body portion to a material whose change in compressive load or tensile load is to be sensed. In one embodiment see Fig. 1 the instrument comprises a cylinder 10 provided with a central bore and covered at one end with a disc 14 of birefringent material, a reflective layer of material being positioned between the disc 14 and the end of the cylinder. In a modification, the cylinder has an upper and lower flange between which the birefringent material is placed. The instrument is provided with the central bore so that it may be fitted to the member to be stressed.
GB3278765A 1964-07-31 1965-07-30 A load change sensing instrument Expired GB1119530A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA908468 1964-07-31

Publications (1)

Publication Number Publication Date
GB1119530A true GB1119530A (en) 1968-07-10

Family

ID=4142050

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3278765A Expired GB1119530A (en) 1964-07-31 1965-07-30 A load change sensing instrument

Country Status (1)

Country Link
GB (1) GB1119530A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3718066A (en) * 1970-12-28 1973-02-27 Iit Res Inst Tension indicating fastener
US3718065A (en) * 1970-12-24 1973-02-27 Iit Res Inst Tension indicating fastener
FR2507777A1 (en) * 1981-06-10 1982-12-17 Bergwerksverband Gmbh MEASURING DEVICE
US4955758A (en) * 1986-07-30 1990-09-11 Du Pont (Australia) Ltd. Reinforcing method and means
CN112461145A (en) * 2020-09-10 2021-03-09 河南平高电气股份有限公司 Deformation monitoring system of pull rod type corrugated pipe

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3718065A (en) * 1970-12-24 1973-02-27 Iit Res Inst Tension indicating fastener
US3718066A (en) * 1970-12-28 1973-02-27 Iit Res Inst Tension indicating fastener
FR2507777A1 (en) * 1981-06-10 1982-12-17 Bergwerksverband Gmbh MEASURING DEVICE
US4955758A (en) * 1986-07-30 1990-09-11 Du Pont (Australia) Ltd. Reinforcing method and means
CN112461145A (en) * 2020-09-10 2021-03-09 河南平高电气股份有限公司 Deformation monitoring system of pull rod type corrugated pipe

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