GB843515A - Improvements in or relating to extensometers - Google Patents

Improvements in or relating to extensometers

Info

Publication number
GB843515A
GB843515A GB3605257A GB3605257A GB843515A GB 843515 A GB843515 A GB 843515A GB 3605257 A GB3605257 A GB 3605257A GB 3605257 A GB3605257 A GB 3605257A GB 843515 A GB843515 A GB 843515A
Authority
GB
United Kingdom
Prior art keywords
legs
indentors
deflectible
deflection
strain gauges
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
GB3605257A
Inventor
Sverker Walfridsson Sjostrom
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.)
Saab AB
Scania Vabis AB
Original Assignee
Saab Scania AB
Scania Vabis AB
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 Saab Scania AB, Scania Vabis AB filed Critical Saab Scania AB
Priority to GB3605257A priority Critical patent/GB843515A/en
Publication of GB843515A publication Critical patent/GB843515A/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
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/16—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/16—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
    • G01B7/24—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge using change in magnetic properties

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

843,515. Extensometers. SCANIA-VABIS A.B. Nov. 19, 1957, No. 36052/57. Class 40 (1). An extensometer consists of a body part and three angularly deflectible legs connected thereto and having indentors to be placed on a surface to be tested, each of the legs being deflectible in a different non- parallel plane substantially perpendicular to the surface. The device is shown diagrammatically in Fig. 5 where the legs 3 are pivoted at points 14 and have indentors 4. The body member is shown at 5. Deflection at the legs is detected by means of strain gauges 12 and 13 arranged between each pair of legs connected in bridge circuits, Fig. 9 (not shown). Figs. 1 to 4 (not shown) give a detailed mechanical construction of the device. The body member may be fitted either with a strong magnet or a suction cup for attaching the device to other than upward facing horizontal surfaces. The deflection of the legs may be detected inductively or capacitively instead of by resistance strain gauges.
GB3605257A 1957-11-19 1957-11-19 Improvements in or relating to extensometers Expired GB843515A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3605257A GB843515A (en) 1957-11-19 1957-11-19 Improvements in or relating to extensometers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3605257A GB843515A (en) 1957-11-19 1957-11-19 Improvements in or relating to extensometers

Publications (1)

Publication Number Publication Date
GB843515A true GB843515A (en) 1960-08-04

Family

ID=10384413

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3605257A Expired GB843515A (en) 1957-11-19 1957-11-19 Improvements in or relating to extensometers

Country Status (1)

Country Link
GB (1) GB843515A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2220493A (en) * 1988-07-07 1990-01-10 Crystalate Electronics Extensometer probe
WO2018115138A1 (en) * 2016-12-21 2018-06-28 4Subsea As Strain sensor
CN115682978A (en) * 2022-12-06 2023-02-03 北京路桥瑞通科技发展有限公司 Deflection measuring device for bridge engineering

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2220493A (en) * 1988-07-07 1990-01-10 Crystalate Electronics Extensometer probe
WO2018115138A1 (en) * 2016-12-21 2018-06-28 4Subsea As Strain sensor
CN115682978A (en) * 2022-12-06 2023-02-03 北京路桥瑞通科技发展有限公司 Deflection measuring device for bridge engineering

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