ES2003115A6 - Un extensimetro sensor para detectar esfuerzos y tensiones en miembros o estructuras mecanicas - Google Patents

Un extensimetro sensor para detectar esfuerzos y tensiones en miembros o estructuras mecanicas

Info

Publication number
ES2003115A6
ES2003115A6 ES8602295A ES8602295A ES2003115A6 ES 2003115 A6 ES2003115 A6 ES 2003115A6 ES 8602295 A ES8602295 A ES 8602295A ES 8602295 A ES8602295 A ES 8602295A ES 2003115 A6 ES2003115 A6 ES 2003115A6
Authority
ES
Spain
Prior art keywords
thick
stresses
structures
strain gauge
deformations
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
ES8602295A
Other languages
English (en)
Inventor
Orto Giuseppe Dell
Giuseppina Rossi
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.)
Marelli Europe SpA
Original Assignee
Marelli Autronica SpA
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 Marelli Autronica SpA filed Critical Marelli Autronica SpA
Publication of ES2003115A6 publication Critical patent/ES2003115A6/es
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00Measuring force or stress, in general
    • G01L1/20Measuring 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
    • G01L1/22Measuring 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
    • G01L1/2206Special supports with preselected places to mount the resistance strain gauges; Mounting of supports
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/16Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
    • G01B7/18Measuring 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
    • G01B7/20Measuring 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 formed by printed-circuit technique
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00Measuring force or stress, in general
    • G01L1/20Measuring 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
    • G01L1/22Measuring 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
    • G01L1/2206Special supports with preselected places to mount the resistance strain gauges; Mounting of supports
    • G01L1/2218Special supports with preselected places to mount the resistance strain gauges; Mounting of supports the supports being of the column type, e.g. cylindric, adapted for measuring a force along a single direction
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00Measuring force or stress, in general
    • G01L1/20Measuring 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
    • G01L1/22Measuring 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
    • G01L1/2206Special supports with preselected places to mount the resistance strain gauges; Mounting of supports
    • G01L1/2218Special supports with preselected places to mount the resistance strain gauges; Mounting of supports the supports being of the column type, e.g. cylindric, adapted for measuring a force along a single direction
    • G01L1/2225Special supports with preselected places to mount the resistance strain gauges; Mounting of supports the supports being of the column type, e.g. cylindric, adapted for measuring a force along a single direction the direction being perpendicular to the central axis
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00Measuring force or stress, in general
    • G01L1/20Measuring 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
    • G01L1/22Measuring 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
    • G01L1/2287Measuring 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
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00Measuring force or stress, in general
    • G01L1/20Measuring 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
    • G01L1/22Measuring 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
    • G01L1/2287Measuring 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
    • G01L1/2293Measuring 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 of the semi-conductor type
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/12Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
    • G01R31/14Circuits therefor, e.g. for generating test voltages, sensing circuits
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/38Concrete; Lime; Mortar; Gypsum; Bricks; Ceramics; Glass
    • G01N33/388Ceramics

Landscapes

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

Abstract

UN EXTENSIMETRO SENSOR PARA DETECTAR LOS ESFUERZOS Y DEFORMACIONES EN MIEMBROS O ESTRUCTURAS METALICAS, COMPRENDIENDO UN SUBSTRATO DE SOPORTE EN FORMA DE UNA PLACA DELGADA, HECHA DE UN MATERIAL ELECTRICAMENTE AISLANTE, CON PREFERENCIA DE MATERIAL CERAMICO, LLEVANDO EN UNA CARA POR LO MENOS UNA RESISTENCIA DE PELICULA GRUESA; DICHO SUBESTRATO DE SOPORTE ESTA PREPARADO PARA PODER SER FIRMEMENTE SUJETO POR SU OTRA CARA SOBRE UN MIEMBRO O ESTRUCTURA DEL CUAL DEBAN SER DETECTADAS LOCALMENTE LOS ESFUERZOS Y DEFORMACIONES, DE TAL MODO QUE DICHOS ESFUERZOS O DEFORMACIONES DETERMINAN A TRAVES DEL SUBESTRATO LAS CORRESPONDIENTES DEFORMACIONES EN LA POR LO MENOS UNA RESISTENCIA DE PELICULA GRUESA.
ES8602295A 1985-09-17 1986-07-16 Un extensimetro sensor para detectar esfuerzos y tensiones en miembros o estructuras mecanicas Expired ES2003115A6 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8553804U IT206727Z2 (it) 1985-09-17 1985-09-17 Sensore estensimetrico a film spesso per la rilevazione di sforzi e deformazioni in organi o strutture meccaniche

Publications (1)

Publication Number Publication Date
ES2003115A6 true ES2003115A6 (es) 1988-10-16

Family

ID=11285267

Family Applications (1)

Application Number Title Priority Date Filing Date
ES8602295A Expired ES2003115A6 (es) 1985-09-17 1986-07-16 Un extensimetro sensor para detectar esfuerzos y tensiones en miembros o estructuras mecanicas

Country Status (11)

Country Link
US (1) US4793189A (es)
JP (1) JP2514502Y2 (es)
BE (1) BE905451A (es)
CH (1) CH669994A5 (es)
DE (1) DE3631647C2 (es)
ES (1) ES2003115A6 (es)
FR (1) FR2587484B1 (es)
GB (1) GB2184239B (es)
IT (1) IT206727Z2 (es)
NL (1) NL8602362A (es)
PT (1) PT83393B (es)

Families Citing this family (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2234629B (en) * 1989-06-28 1993-01-27 Ivor John Martin Fehr Improvements relating to strain gauges
JPH05508117A (ja) * 1990-02-27 1993-11-18 メリーランド大学 カレッジ パーク校 任意方向において物体に作用を与えかつ検出を行うための方法と装置
US5440193A (en) * 1990-02-27 1995-08-08 University Of Maryland Method and apparatus for structural, actuation and sensing in a desired direction
US5140849A (en) * 1990-07-30 1992-08-25 Agency Of Industrial Science And Technology Rolling bearing with a sensor unit
JPH05141907A (ja) * 1991-09-24 1993-06-08 Tokyo Electric Co Ltd 歪センサ及びその製造方法並びにその歪センサを使用したロードセル秤
DE4206577A1 (de) * 1992-03-02 1993-09-09 Hottinger Messtechnik Baldwin Einrichtung und verfahren zur ermittlung der verformung eines bauteils und verfahren zur montage der einrichtung
US5528151A (en) * 1992-11-09 1996-06-18 Hughes Aircraft Company Thermal fatigue testing using plural test trips with graduated sizing and recessed anchoring
FR2701317B1 (fr) * 1993-02-09 1995-03-31 Thomson Csf Dispositif de mesure d'efforts exercés sur une pièce mécanique et procédé de fixation.
GB2310288B (en) * 1996-02-17 1999-09-29 John Karl Atkinson A force sensitive device
DE19907673A1 (de) * 1999-02-23 2000-08-31 Klaus Dietzel Meßeinrichtung mit Smarttransponder an Schlauchleitungen
US6378384B1 (en) 1999-08-04 2002-04-30 C-Cubed Limited Force sensing transducer and apparatus
DE10023838C2 (de) * 2000-05-16 2002-11-28 Siemens Ag Vorrichtung zum Messen einer Wegänderung zwischen Abschnitten eines Bauteils und Verwendung dieser Vorrichtung
JP4583576B2 (ja) * 2000-10-19 2010-11-17 富士重工業株式会社 繊維強化樹脂複合材の損傷位置検出装置および損傷検出センサーの製造方法
DE10134586A1 (de) * 2001-07-17 2003-02-06 Siemens Ag Sensoreinrichtung zum Erfassen einer Dehnungsbeanspruchung
DE10225549B4 (de) * 2002-06-06 2007-12-06 Siemens Ag Verfahren und Anordnung zum Erfassen von mechanischen Krafteinwirkungen auf einen Bauelementträger für elektrische Bauelemente
JP2004301508A (ja) * 2003-03-28 2004-10-28 Matsushita Electric Ind Co Ltd トルクセンサおよびそれを用いた操舵トルク検出装置
DE10335690A1 (de) * 2003-06-04 2004-12-23 Sensor-Technik Wiedemann Gmbh Verformungssensor
FR2867275B1 (fr) * 2004-03-03 2006-05-19 Seb Sa Capteur de poids
DE102005028906A1 (de) * 2005-06-22 2006-12-28 Giesecke & Devrient Gmbh Vorrichtung für die Prüfung von Banknoten
GB0620944D0 (en) * 2006-10-20 2006-11-29 Insensys Ltd Curvature measurement moving relative to pipe
US20080203137A1 (en) * 2007-02-28 2008-08-28 International Business Machines Corporation Substrate bonding methods and system including monitoring
DE102007012157A1 (de) * 2007-03-12 2008-09-18 Brosa Ag Modular aufgebaute Messachse
DE102008013203A1 (de) * 2008-03-08 2009-09-17 Terex-Demag Gmbh Ausleger zur endseitigen Aufnahme von Lasten, Ausleger-Baugruppe mit mindestens zwei derartigen Auslegern sowie Verfahren zur Herstellung eines derartigen Auslegers
JP5487672B2 (ja) * 2009-03-27 2014-05-07 パナソニック株式会社 物理量センサ
US8943896B2 (en) * 2012-10-10 2015-02-03 Auto Industrial Co., Ltd. Pressure transducer using ceramic diaphragm
ITGE20130091A1 (it) * 2013-09-18 2015-03-19 Realte Di Giovanni Landro Sistema di cambio elettronico e di controllo di velocità e di trazione per motocicli
US10225629B2 (en) * 2013-11-25 2019-03-05 Chi Hung Louis Lam System for monitoring condition of adjustable construction temporary supports
JP6488698B2 (ja) * 2014-12-25 2019-03-27 ヤマハ株式会社 外力検出アレイモジュール
KR102544041B1 (ko) * 2015-03-31 2023-06-15 가부시키가이샤 네지로 통전로 부부재 및 통전로의 패터닝 방법, 부재 변화 계측 방법
EP3431948A1 (de) * 2017-07-17 2019-01-23 Planet GDZ AG Teststreifen für dichtungen
JP6820817B2 (ja) * 2017-10-03 2021-01-27 アズビル株式会社 トルク検出装置
JP7034811B2 (ja) * 2018-04-09 2022-03-14 日本電産コパル電子株式会社 歪センサの固定装置とそれを用いたトルクセンサ
JP7191737B2 (ja) * 2019-03-11 2022-12-19 日本電産コパル電子株式会社 ロードセル
JP7203645B2 (ja) * 2019-03-11 2023-01-13 日本電産コパル電子株式会社 ロードセル
JP7350605B2 (ja) * 2019-10-09 2023-09-26 ニデックコンポーネンツ株式会社 歪センサの固定装置とそれを用いたトルクセンサ
JP7321872B2 (ja) * 2019-10-09 2023-08-07 ニデックコンポーネンツ株式会社 歪センサの固定装置とそれを用いたトルクセンサ
WO2021070666A1 (ja) * 2019-10-09 2021-04-15 日本電産コパル電子株式会社 歪センサの固定装置とそれを用いたトルクセンサ
CN114303046A (zh) * 2019-10-09 2022-04-08 日本电产科宝电子株式会社 应变传感器的固定装置和使用该固定装置的扭矩传感器
JP7350606B2 (ja) * 2019-10-09 2023-09-26 ニデックコンポーネンツ株式会社 歪センサの固定装置とそれを用いたトルクセンサ
JP7321871B2 (ja) * 2019-10-09 2023-08-07 ニデックコンポーネンツ株式会社 歪センサの固定装置とそれを用いたトルクセンサ
CN112484624B (zh) * 2020-10-22 2022-08-09 浙江航鑫支吊架有限公司 一种基于物联网的抗震支吊架在线监测装置

Family Cites Families (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2599578A (en) * 1950-11-17 1952-06-10 Obert Leonard Device for measuring the change of strain in a solid medium
US2626338A (en) * 1952-05-08 1953-01-20 Trans Sonics Inc Measuring device
US2722587A (en) * 1953-03-20 1955-11-01 Lockheed Aircraft Corp Electric strain sensing device
US2982127A (en) * 1957-06-07 1961-05-02 George F Cummings Jr Strain gage
US3303450A (en) * 1964-10-06 1967-02-07 Blh Electronics Symmetrical dual-grid strain gaging
US3327270A (en) * 1965-01-06 1967-06-20 Pneumo Dynamics Corp Semi-conductor sensing assembly
US3411348A (en) * 1966-06-30 1968-11-19 W C Dillon & Company Inc Electronic dynamometer
US3479739A (en) * 1967-04-24 1969-11-25 Statham Instrument Inc Method of making a transducer beam
NL6811584A (es) * 1967-08-18 1969-02-20
DE1950836B2 (de) * 1969-10-09 1973-03-08 Pietzsch, Ludwig, Dr Ing , 7500 Karlsruhe Dehnungsmessanordnung
US3695096A (en) * 1970-04-20 1972-10-03 Ali Umit Kutsay Strain detecting load cell
US3738162A (en) * 1971-09-10 1973-06-12 Us Army Fatigue damage indicator
US3899695A (en) * 1973-09-24 1975-08-12 Nat Semiconductor Corp Semiconductor pressure transducer employing novel temperature compensation means
US4055078A (en) * 1976-07-01 1977-10-25 Antonio Nicholas F D Strain transducer
US4104605A (en) * 1976-09-15 1978-08-01 General Electric Company Thin film strain gauge and method of fabrication
DE2810782A1 (de) * 1978-03-13 1979-09-20 Kloeckner Humboldt Deutz Ag Messeinrichtung fuer elastische verformungen
DE2842190C2 (de) * 1978-09-28 1985-01-24 Robert Bosch Gmbh, 7000 Stuttgart Dehnmeßstreifen in Dickschichttechnik
US4311980A (en) * 1978-10-12 1982-01-19 Fabrica Italiana Magneti Marelli, S.P.A. Device for pressure measurement using a resistor strain gauge
JPS55118109U (es) * 1979-02-16 1980-08-21
JPS55140112A (en) * 1979-04-19 1980-11-01 Tokyo Electric Co Ltd Weighing device employing load cell
US4322980A (en) * 1979-11-08 1982-04-06 Hitachi, Ltd. Semiconductor pressure sensor having plural pressure sensitive diaphragms and method
JPS56140203A (en) * 1980-04-02 1981-11-02 Toyota Central Res & Dev Lab Inc Bridge circuit
FR2502327A1 (fr) * 1981-03-20 1982-09-24 Dal Dan Felice Procede de realisation de capteurs a jauge de contrainte
GB2098739B (en) * 1981-05-16 1985-01-16 Colvern Ltd Electrical strain gauges
US4424717A (en) * 1981-10-08 1984-01-10 The Babcock & Wilcox Company Force transducer
JPS58150816A (ja) * 1982-03-04 1983-09-07 Kyowa Dengiyou:Kk ひずみ検出器
US4481497A (en) * 1982-10-27 1984-11-06 Kulite Semiconductor Products, Inc. Transducer structures employing ceramic substrates and diaphragms
JPS59190603A (ja) * 1983-04-13 1984-10-29 Hitachi Ltd ひずみゲ−ジ
GB2141548A (en) * 1983-06-16 1984-12-19 Welwyn Electronics Ltd Strain-gauge transducer
US4586018A (en) * 1983-09-19 1986-04-29 Ford Motor Company Combustion pressure sensor
GB8332527D0 (en) * 1983-12-06 1984-01-11 Barnett J D Strain transducers
US4553872A (en) * 1984-02-15 1985-11-19 Fmc Corporation Load cell clamping apparatus
DE3429649A1 (de) * 1984-08-11 1986-02-20 Vdo Adolf Schindling Ag, 6000 Frankfurt Elektrischer widerstand

Also Published As

Publication number Publication date
JP2514502Y2 (ja) 1996-10-23
BE905451A (fr) 1987-01-16
CH669994A5 (en) 1989-04-28
JPS6267206U (es) 1987-04-27
IT206727Z2 (it) 1987-10-01
FR2587484B1 (fr) 1992-02-14
DE3631647A1 (de) 1987-03-26
DE3631647C2 (de) 1996-09-12
GB2184239A (en) 1987-06-17
PT83393B (pt) 1993-01-29
NL8602362A (nl) 1987-04-16
PT83393A (en) 1986-10-01
US4793189A (en) 1988-12-27
GB8622354D0 (en) 1986-10-22
IT8553804V0 (it) 1985-09-17
GB2184239B (en) 1990-05-09
FR2587484A1 (fr) 1987-03-20

Similar Documents

Publication Publication Date Title
ES2003115A6 (es) Un extensimetro sensor para detectar esfuerzos y tensiones en miembros o estructuras mecanicas
DE59103616D1 (de) Dehnungsmessstreifen und Messgrössenaufnehmer mit derartigen Dehnungsmessstreifen.
GB2369889B (en) Strain sensing installation
DE3376760D1 (en) Transducer element, method for its manufacture and its use in a pressure pick-up device
US4996882A (en) Miniature strain sensor
GB1352822A (en) Strain gauges
GB1336539A (en) High temperature strain gauge
ATE43180T1 (de) Messwertaufnehmer zum elektrischen messen von kraeften, drehmomenten, beschleunigungen, druecken und mechanischen spannungen.
ATE275261T1 (de) Dehnungsaufnehmer mit mechanischer verriegelung während des einbaus und selbstätiger kalibrierung mit hilfe dieser verriegelung
GB2294330B (en) Electrochemical measuring probe with a sensor element arranged in a floating manner, and process for its manufacture
JPS5594102A (en) Strain gauge bridge with compensation resistor integrated
JPS6465426A (en) Platinum temperature sensor
DE3474719D1 (en) Multicomponent force-sensing and moment-sensing body with strain gauges
CH669259A5 (it) Sensore elettrico di deformazione a film spesso, in particolare sensore di pressione.
DE3871936D1 (de) Schicht-kontaktierendes dickenmessgeraet.
SE9601014D0 (sv) Lastcell av skjuvkrafttyp
EP0293145A3 (en) Thread friction measurement arrangement
JPS5612526A (en) Load transducer
JPS6421333A (en) Center of gravity measuring apparatus
EP0320299A2 (en) Pressure transducers and a method of measuring pressure
GB1456403A (en) Transducers
SE8405931D0 (sv) Anordning vid lastcell
JPS6431034A (en) Indentation hardness testing method
JPS6416941A (en) Method for detecting latent stress of structure
JPS57190242A (en) Pressure sensor

Legal Events

Date Code Title Description
SA6 Expiration date (snapshot 920101)

Free format text: 2006-09-16