EP0490952A1 - Ameliorations apportees a une methode et a un appareil de mesure des efforts de cisaillement - Google Patents

Ameliorations apportees a une methode et a un appareil de mesure des efforts de cisaillement

Info

Publication number
EP0490952A1
EP0490952A1 EP19900913496 EP90913496A EP0490952A1 EP 0490952 A1 EP0490952 A1 EP 0490952A1 EP 19900913496 EP19900913496 EP 19900913496 EP 90913496 A EP90913496 A EP 90913496A EP 0490952 A1 EP0490952 A1 EP 0490952A1
Authority
EP
European Patent Office
Prior art keywords
shear force
measuring
projections
sheet
recording means
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.)
Withdrawn
Application number
EP19900913496
Other languages
German (de)
English (en)
Inventor
James Robert Hewit
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.)
BTG International Ltd
Original Assignee
BTG International Ltd
British Technology Group 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 BTG International Ltd, British Technology Group Ltd filed Critical BTG International Ltd
Publication of EP0490952A1 publication Critical patent/EP0490952A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/103Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/1036Measuring load distribution, e.g. podologic studies
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00Measuring arrangements characterised by the use of optical techniques
    • G01B11/16Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00Measuring force or stress, in general
    • G01L1/24Measuring 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
    • G01L1/247Measuring 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 using distributed sensing elements, e.g. microcapsules

Abstract

Méthode et appareil pour mesurer l'effort de cisaillement exercé sur une première surface (4a, 27) du fait de son engrènement avec une deuxième surface (3) représentée par un élément sous forme de feuille (1). La deuxième surface est constituée de parties en relief (4) dont les extrémités supérieures sont déviées, dans une direction parallèle au plan de la feuille, lorsque la force s'exerce sur elles. Un appareil (7) enregistre le déplacement de ces extrémités, et un autre appareil calcule l'amplitude et la direction de la force de cisaillement par référence à ce déplacement. La description concerne plus particulièrement l'utilisation de cette invention pour mesurer la force de cisaillement exercée sur un pied humain et celle des pinces mécaniques utilisées pour saisir des composants au cours d'un processus d'assemblage robotisé.
EP19900913496 1989-09-05 1990-09-03 Ameliorations apportees a une methode et a un appareil de mesure des efforts de cisaillement Withdrawn EP0490952A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB898920028A GB8920028D0 (en) 1989-09-05 1989-09-05 Improvements in or relating to a method and apparatus for measuring shear force
GB8920028 1989-09-05

Publications (1)

Publication Number Publication Date
EP0490952A1 true EP0490952A1 (fr) 1992-06-24

Family

ID=10662546

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900913496 Withdrawn EP0490952A1 (fr) 1989-09-05 1990-09-03 Ameliorations apportees a une methode et a un appareil de mesure des efforts de cisaillement

Country Status (3)

Country Link
EP (1) EP0490952A1 (fr)
GB (1) GB8920028D0 (fr)
WO (1) WO1991003705A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0313794D0 (en) * 2003-06-14 2003-07-23 Univ Dundee Tactile sensor assembly

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2325490A (en) * 1942-01-09 1943-07-27 Herbert O Elftman Pressure indicating method and apparatus
IL44525A (en) * 1974-03-29 1976-08-31 Univ Ramot Method and apparatus for indicating or measuring contact pressure distribution over a surface
GB1454340A (en) * 1974-12-11 1976-11-03 Univ Strathclyde Method of deformation measurement
US3987668A (en) * 1975-11-17 1976-10-26 Popenoe Charles H Light reflective opti-mechanical displacement microindicator

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9103705A1 *

Also Published As

Publication number Publication date
GB8920028D0 (en) 1989-10-18
WO1991003705A1 (fr) 1991-03-21

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19920218

AK Designated contracting states

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Designated state(s): DE FR GB

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Owner name: BRITISH TECHNOLOGY GROUP LTD

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Effective date: 19930401