GB201015342D0 - Strain sensor for a component - Google Patents

Strain sensor for a component

Info

Publication number
GB201015342D0
GB201015342D0 GB201015342A GB201015342A GB201015342D0 GB 201015342 D0 GB201015342 D0 GB 201015342D0 GB 201015342 A GB201015342 A GB 201015342A GB 201015342 A GB201015342 A GB 201015342A GB 201015342 D0 GB201015342 D0 GB 201015342D0
Authority
GB
United Kingdom
Prior art keywords
strain
component
sensing element
substrate
mounting surface
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Withdrawn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
GB201015342A
Other versions
GB2483659A (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.)
Vestas Wind Systems AS
Original Assignee
Vestas Wind Systems AS
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 Vestas Wind Systems AS filed Critical Vestas Wind Systems AS
Priority to GB201015342A priority Critical patent/GB2483659A/en
Publication of GB201015342D0 publication Critical patent/GB201015342D0/en
Publication of GB2483659A publication Critical patent/GB2483659A/en
Withdrawn legal-status Critical Current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
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/0002—Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/32—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring the deformation in a solid
    • 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
    • G01B7/18—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 resistance
    • 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
    • G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
    • G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
    • 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
    • G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
    • G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
    • G01L1/2206—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports
    • 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
    • G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
    • G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
    • G01L1/2287—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges constructional details of the strain gauges
    • 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
    • G01L1/26—Auxiliary measures taken, or devices used, in connection with the measurement of force, e.g. for preventing influence of transverse components of force, for preventing overload
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L25/00—Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
    • G01M5/0016—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings of aircraft wings or blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2270/00—Control
    • F05B2270/80—Devices generating input signals, e.g. transducers, sensors, cameras or strain gauges
    • F05B2270/808—Strain gauges; Load cells

Abstract

A strain sensor for a component 100, e.g. wind turbine blade, comprises strain sensing element 70 supported by substrate 80 having a mounting surface 90 for mounting to the component. The strain sensing element, e.g resistance strain gauge, is arranged on a side of the substrate opposite the mounting surface. The substrate may be elastomeric or the mounting surface comprise at least two spaced apart regions (fig. 4). When the component to which the strain sensor is mounted undergoes strain or deformation (fig. 2 unstrained, fig. 3 strained), the deformation is transmitted to the mounting surface of the substrate. The substrate attenuates the strain and the strain sensing element sees less strain than the mounting surface and therefore less strain than that experienced by the component. The strain sensor may be calibrated so that the strain on the component can be calculated by mounting the strain sensor and a duplicate strain sensing element to a surface and determining a relationship between the strain sensed by the duplicate strain sensing element and the strain sensed by the strain sensor. Allows use of resistance strain gauge on components subject to large deformations.
GB201015342A 2010-09-14 2010-09-14 Strain sensor with strain attenuating substrate Withdrawn GB2483659A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB201015342A GB2483659A (en) 2010-09-14 2010-09-14 Strain sensor with strain attenuating substrate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB201015342A GB2483659A (en) 2010-09-14 2010-09-14 Strain sensor with strain attenuating substrate

Publications (2)

Publication Number Publication Date
GB201015342D0 true GB201015342D0 (en) 2010-10-27
GB2483659A GB2483659A (en) 2012-03-21

Family

ID=43065201

Family Applications (1)

Application Number Title Priority Date Filing Date
GB201015342A Withdrawn GB2483659A (en) 2010-09-14 2010-09-14 Strain sensor with strain attenuating substrate

Country Status (1)

Country Link
GB (1) GB2483659A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016002321A1 (en) * 2014-06-30 2016-01-07 株式会社日立製作所 Wind-powered electricity generating apparatus, system for monitoring wind-powered electricity generating apparatus, and method for monitoring wind-powered electricity generating apparatus
EP3156644A1 (en) * 2015-10-14 2017-04-19 Siemens Aktiengesellschaft Determining a deflection of a rotor blade of a wind turbine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3719913A (en) * 1969-05-02 1973-03-06 North American Rockwell Viscous strain gage
FR2635584B1 (en) * 1988-08-16 1991-02-08 Sedeme LOW SENSITIVITY STRAIN GAUGE SENSOR TO ELECTRICAL INTERFERENCE
GB2443266B (en) * 2006-10-27 2011-11-16 Transense Technologies Plc Apparatus for and method of attaching a strain sensing element to a substrate
US20080127750A1 (en) * 2006-12-05 2008-06-05 Honeywell International Inc. Reducing strain level in torque sensing system
EP2122161B2 (en) * 2007-02-19 2024-01-17 Vestas Wind Systems A/S Wind turbine blade with strain sensing means, wind turbine, block sensor unit and uses hereof

Also Published As

Publication number Publication date
GB2483659A (en) 2012-03-21

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)