FR2365785A1 - Transducteur de microdeplacement - Google Patents

Transducteur de microdeplacement

Info

Publication number
FR2365785A1
FR2365785A1 FR7724959A FR7724959A FR2365785A1 FR 2365785 A1 FR2365785 A1 FR 2365785A1 FR 7724959 A FR7724959 A FR 7724959A FR 7724959 A FR7724959 A FR 7724959A FR 2365785 A1 FR2365785 A1 FR 2365785A1
Authority
FR
France
Prior art keywords
micro
displacement transducer
displacement
plates
tuned circuit
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.)
Pending
Application number
FR7724959A
Other languages
English (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.)
POPENOE CHARLES
Original Assignee
POPENOE CHARLES
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 POPENOE CHARLES filed Critical POPENOE CHARLES
Publication of FR2365785A1 publication Critical patent/FR2365785A1/fr
Pending 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
    • G01B7/22—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 capacitance
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/24—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance
    • G01D5/241—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance by relative movement of capacitor electrodes
    • G01D5/2417—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance by relative movement of capacitor electrodes by varying separation
    • 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
    • G01L1/14—Measuring force or stress, in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators
    • G01L1/142—Measuring force or stress, in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators using capacitors
    • G01L1/144—Measuring force or stress, in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators using capacitors with associated circuitry
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/24—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for determining value of torque or twisting moment for tightening a nut or other member which is similarly stressed

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

L'invention concerne les transducteurs destinés à la mesure de déplacements très faibles. Le transducteur de l'invention est constitué par un circuit accordé qui comprend une bobine 2 et un condensateur formé par les armatures 12 et 14. L'une des armatures est fixe tandis que l'autre est accouplée à la pièce 16 dont on veut mesurer le déplacement, si bien que le déplacement de cette pièce entraîne une variation détectable de la fréquence de résonance du circuit accordé. Application à la mesure de l'effort de traction auquel est soumis un boulon
FR7724959A 1976-09-24 1977-08-12 Transducteur de microdeplacement Pending FR2365785A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/726,140 US4114428A (en) 1976-09-24 1976-09-24 Radio-frequency tuned-circuit microdisplacement transducer

Publications (1)

Publication Number Publication Date
FR2365785A1 true FR2365785A1 (fr) 1978-04-21

Family

ID=24917413

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7724959A Pending FR2365785A1 (fr) 1976-09-24 1977-08-12 Transducteur de microdeplacement

Country Status (6)

Country Link
US (1) US4114428A (fr)
JP (1) JPS5342058A (fr)
CA (1) CA1092847A (fr)
DE (1) DE2727173A1 (fr)
FR (1) FR2365785A1 (fr)
GB (1) GB1559631A (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0300616A1 (fr) * 1987-07-02 1989-01-25 Emhart Glass Machinery Investments Inc. Appareil de mesure d epaisseur d une paroi
EP0408807A1 (fr) * 1987-11-10 1991-01-23 Rotabolt Limited Indicateur de charge
NL1001524C2 (nl) * 1995-10-30 1997-05-02 Doornes Transmissie Bv Meetsysteem.
EP2441671A2 (fr) * 2010-10-15 2012-04-18 Goodrich Corporation Capteurs capacitifs pour surveiller des charges sur le train d'atterrissage d'un aéronef
EP2420447A3 (fr) * 2010-08-17 2015-02-25 Rosemount Aerospace Inc. Capteurs capacitifs pour surveiller les charges sur des broches
US10131419B2 (en) 2010-10-15 2018-11-20 Goodrich Corporation Systems and methods for detecting landing gear ground loads

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2506023A1 (fr) * 1981-05-15 1982-11-19 Snecma Capteur de deplacement d'objets et dispositif en faisant application pour la mesure de la vitesse de rotation et des frequences de vibration d'un rotor, notamment d'une roue de turbomachine
CH659710A5 (de) * 1983-05-20 1987-02-13 Kern & Co Ag Kapazitiver druck-frequenz-wandler.
DE3468242D1 (en) * 1984-05-15 1988-02-04 Sulzer Ag Harness drive for looms
US4678994A (en) * 1984-06-27 1987-07-07 Digital Products Corporation Methods and apparatus employing apparent resonant properties of thin conducting materials
JPH069346Y2 (ja) * 1986-09-29 1994-03-09 日東工器株式会社 締結装置
JPH069345Y2 (ja) * 1986-09-29 1994-03-09 日東工器株式会社 クランプ装置
GB2199952A (en) * 1987-01-16 1988-07-20 Coal Ind Method and apparatus for measuring load on a rock bolt
DE3937881A1 (de) * 1989-11-14 1991-05-16 Benno Niedermaier Vorrichtung und verfahren zur ueberpruefung des festsitzes von schrauben
SE9102122D0 (sv) * 1991-07-08 1991-07-08 Skf Nova Ab Sensor respektive foerfarande foer maetning av vridmoment och/eller krafter
SE9102120D0 (sv) * 1991-07-08 1991-07-08 Skf Nova Ab Surveillance system
DE4142671A1 (de) * 1991-12-21 1993-06-24 Wabco Westinghouse Fahrzeug Einrichtung zur messung einer verformung eines bauteils
JPH0565534U (ja) * 1992-07-23 1993-08-31 三菱化成ビニル株式会社 複合シート
JPH074417A (ja) * 1993-06-14 1995-01-10 Ishino Corp:Kk 緩み止め付きボルト
US6009759A (en) * 1996-05-03 2000-01-04 Ultrafast, Inc. Minimizing the effect of bending on ultrasonic measurements in a load-bearing member
FR2777994A1 (fr) * 1998-04-27 1999-10-29 Olivier Flambard Dispositif integre pour la mesure de la tension ou la compression dans une piece
FI114042B (fi) * 2000-08-25 2004-07-30 Polar Electro Oy Voimansiirtimen välittämän voiman mittaus
US6501211B1 (en) 2001-07-13 2002-12-31 Masoud Nasrollahzadeh Ultra-sonic transducer assembly incorporated into a printed circuit board for determining tension forces in a bolt
WO2003069122A2 (fr) * 2001-12-31 2003-08-21 The Government Of The United States Of America As Represented By The Secretary, Department Of Health Boulon a roche instrumente, enregistreur de donnees et systeme d'interface utilisateur
DE10236051B4 (de) * 2002-08-06 2007-11-29 Eads Deutschland Gmbh Spannungs-/Dehnungsmesssensor sowie Verfahren zur Spannungs-/Dehnungsmessung
US20070144834A1 (en) * 2005-12-28 2007-06-28 Eugene Matzan Controlling lubrication of moving bodies such as bearings of electric motors
US7412898B1 (en) 2006-07-28 2008-08-19 Disney Enterprises, Inc. Load sensing system including RFID tagged fasteners
US7958614B2 (en) * 2007-10-09 2011-06-14 Popenoe Charles H Method of making a fastening device for visually indicating tension
US8683869B2 (en) * 2008-09-04 2014-04-01 The Boeing Company Monitoring fastener preload
US8810370B2 (en) 2010-01-22 2014-08-19 The Boeing Company Wireless collection of fastener data
US8978967B2 (en) * 2007-10-31 2015-03-17 The Boeing Campany Intelligent fastener system
US8521448B1 (en) 2009-10-21 2013-08-27 The Boeing Company Structural analysis using measurement of fastener parameters
US20090206705A1 (en) * 2008-02-19 2009-08-20 Nies Jacob J Fasteners with welded ultrasonic stress transducers
US20100077872A1 (en) * 2008-10-01 2010-04-01 Chih-Ching Hsieh Fixing Element That Detects Deformations
DE102009043267A1 (de) * 2009-09-29 2011-04-21 Neumayer Tekfor Holding Gmbh Verschraubungsmittel und System zur Überwachung einer Verschraubung
US20130160567A1 (en) * 2011-12-21 2013-06-27 Canon Kabushiki Kaisha Force sensor
US10450174B1 (en) * 2014-10-07 2019-10-22 Jergens, Inc. Hoisting device and bolt for use therewith, method of making and using the same
JP6450839B2 (ja) * 2015-05-20 2019-01-09 株式会社サンノハシ ボルト、制御装置、および歪測定システム
EP3458730B1 (fr) * 2016-05-18 2022-09-07 Integrity Engineering Solutions Pty Ltd. Fixation indiquant la charge
SE540526C2 (en) * 2016-08-08 2018-09-25 Strain Labs Ab An intelligent bolt, a method of using an intelligent bolt and a sensor arrangement for the intelligent bolt
WO2018035146A1 (fr) 2016-08-15 2018-02-22 Stress Indicators, Inc. Transducteur de déplacement (chromaulique), procédé de fabrication d'un transducteur de déplacement (chromaulique), et système de commande en boucle fermée l'incorporant
CN106382883B (zh) * 2016-08-31 2020-09-18 珠海迈科智能科技股份有限公司 一种印制电路板的形变检测方法及装置
TWI664356B (zh) * 2017-03-24 2019-07-01 中國氣動工業股份有限公司 感應螺栓的電源與訊號傳輸裝置及感應螺栓裝置
AT521975B1 (de) * 2019-05-13 2020-07-15 Revotec Zt Gmbh Mechanisches Verbindungsbauteil mit Druckindikator
CN110231112A (zh) * 2019-06-12 2019-09-13 华东理工大学 一种高温法兰螺栓力测量方法及其测量装置
CN114112163B (zh) * 2021-11-18 2024-05-28 国网新疆电力有限公司电力科学研究院 低功耗压力监测传感器

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1647474A (en) * 1923-10-25 1927-11-01 Frederick W Seymour Variable pathway
US1837678A (en) * 1928-09-12 1931-12-22 Ryder Samuel Charles Inductance coil particularly adapted for use with radio tuning devices
US2911605A (en) * 1956-10-02 1959-11-03 Monroe Calculating Machine Printed circuitry
US3906340A (en) * 1971-04-30 1975-09-16 Peter Mauri Wingfield Tuned circuit monitor for structural materials
US3886473A (en) * 1974-06-13 1975-05-27 Hans D Heyck Capacitive pressure and displacement transducers
US3943915A (en) * 1974-11-29 1976-03-16 Motorola, Inc. Intracranial pressure sensing device
US4026276A (en) * 1976-04-05 1977-05-31 The Johns Hopkins University Intracranial pressure monitor
US4016764A (en) * 1976-07-19 1977-04-12 The United States Of America As Represented By The Secretary Of The Navy Temperature compensated, high resolution pressure transducer based on capacitance change principles

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0300616A1 (fr) * 1987-07-02 1989-01-25 Emhart Glass Machinery Investments Inc. Appareil de mesure d epaisseur d une paroi
EP0408807A1 (fr) * 1987-11-10 1991-01-23 Rotabolt Limited Indicateur de charge
WO1991001484A1 (fr) * 1987-11-10 1991-02-07 Rotabolt Limited Dispositif d'indication de charge
NL1001524C2 (nl) * 1995-10-30 1997-05-02 Doornes Transmissie Bv Meetsysteem.
US5898298A (en) * 1995-10-30 1999-04-27 Van Doorne's Transmissie B.V. Inductor/capacitor-based measuring system for a moving body
EP2420447A3 (fr) * 2010-08-17 2015-02-25 Rosemount Aerospace Inc. Capteurs capacitifs pour surveiller les charges sur des broches
EP2441671A2 (fr) * 2010-10-15 2012-04-18 Goodrich Corporation Capteurs capacitifs pour surveiller des charges sur le train d'atterrissage d'un aéronef
EP2441671A3 (fr) * 2010-10-15 2015-02-25 Goodrich Corporation Capteurs capacitifs pour surveiller des charges sur le train d'atterrissage d'un aéronef
US10131419B2 (en) 2010-10-15 2018-11-20 Goodrich Corporation Systems and methods for detecting landing gear ground loads
US10899435B2 (en) 2010-10-15 2021-01-26 Goodrich Corporation Systems and methods for detecting landing gear ground loads

Also Published As

Publication number Publication date
DE2727173A1 (de) 1978-03-30
JPS5342058A (en) 1978-04-17
GB1559631A (en) 1980-01-23
CA1092847A (fr) 1981-01-06
US4114428A (en) 1978-09-19

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