FR2388259A1 - Detecteur de vibrations - Google Patents

Detecteur de vibrations

Info

Publication number
FR2388259A1
FR2388259A1 FR7811368A FR7811368A FR2388259A1 FR 2388259 A1 FR2388259 A1 FR 2388259A1 FR 7811368 A FR7811368 A FR 7811368A FR 7811368 A FR7811368 A FR 7811368A FR 2388259 A1 FR2388259 A1 FR 2388259A1
Authority
FR
France
Prior art keywords
housing
vibration detector
auscultated
vibrations
key
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.)
Granted
Application number
FR7811368A
Other languages
English (en)
Other versions
FR2388259B3 (fr
Inventor
Per V Bruel
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.)
Hottinger Bruel and Kjaer AS
Original Assignee
Bruel and Kjaer 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 Bruel and Kjaer AS filed Critical Bruel and Kjaer AS
Publication of FR2388259A1 publication Critical patent/FR2388259A1/fr
Application granted granted Critical
Publication of FR2388259B3 publication Critical patent/FR2388259B3/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
    • B06B1/0644—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element
    • B06B1/0651—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element of circular shape
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H11/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
    • G01H11/06—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means
    • G01H11/08—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means using piezoelectric devices

Abstract

Détecteur de vibrations comportant un boîtier 1 qui présente une touche de contact 7 prévue pour être mise en appui contre une surface à ausculter 15. Le détecteur comporte au moins un diaphragme circulaire mince 5 monté sur le boîtier 1, et portant la touche de contact 7. La touche 7 est reliée à un élément piézo-électrique 6 associé à une masse inerte. Des moyens, tels qu'un coussin élastique 3, sont prévus pour isoler le boîtier des vibrations de la surface à ausculter 15. Application aux détecteurs de vibrations, pour en réduire les dimensions et en améliorer la sensibilité, en particulier dans le domaine des vibrations ultra-sonores.
FR7811368A 1977-04-19 1978-04-18 Detecteur de vibrations Granted FR2388259A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK170877AA DK139085B (da) 1977-04-19 1977-04-19 Accelerometer.

Publications (2)

Publication Number Publication Date
FR2388259A1 true FR2388259A1 (fr) 1978-11-17
FR2388259B3 FR2388259B3 (fr) 1980-12-19

Family

ID=8107400

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7811368A Granted FR2388259A1 (fr) 1977-04-19 1978-04-18 Detecteur de vibrations

Country Status (6)

Country Link
US (1) US4189655A (fr)
JP (1) JPS5442185A (fr)
DE (1) DE2815933C2 (fr)
DK (1) DK139085B (fr)
FR (1) FR2388259A1 (fr)
GB (1) GB1597212A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011080466A1 (fr) * 2010-01-04 2011-07-07 Peugeot Citroën Automobiles SA Pince d'ecoute pour un outil d'aide au diagnostic vibro-acoustique utilise notamment dans le domaine automobile

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2172469A (en) * 1985-03-11 1986-09-17 United Technologies Corp Environmental shield for broadband acoustic point-contact transducer
GB2172468B (en) * 1985-03-11 1988-11-16 United Technologies Corp Broadband acoustic point-contact transducer
JPH0715485B2 (ja) * 1987-05-21 1995-02-22 日産自動車株式会社 圧電型力学量センサ
DE58901793D1 (de) * 1988-04-05 1992-08-13 Siemens Ag Aufnehmer und verfahren zur schallemissionspruefung.
US4922754A (en) * 1989-03-17 1990-05-08 Kennametal Inc. Acoustic emission transducer and mounting adapter for monitoring metalcutting tools
DE4207910C2 (de) * 1992-03-12 1994-06-01 Siemens Ag Resonanzvermindernde Ummantelung für einen Körperschallsensor
CH689125A5 (de) * 1993-09-02 1998-10-15 Kk Holding Ag Schallemissionsaufnehmer.
JP3158809B2 (ja) * 1993-09-28 2001-04-23 株式会社村田製作所 超音波センサ
US5736631A (en) * 1996-03-11 1998-04-07 Turf Diagnostics & Design, Inc. Turf impact analysis system
DE19621213C2 (de) * 1996-05-25 1998-04-09 Imt Ind Mestechnik Gmbh & Co K Vorrichtung mit einer Aufnahme für einen mit einer Tastspitze und einer Führungshülse verbindbaren Sensor
US7113091B2 (en) * 1996-05-30 2006-09-26 Script Michael H Portable motion detector and alarm system and method
US6940405B2 (en) * 1996-05-30 2005-09-06 Guardit Technologies Llc Portable motion detector and alarm system and method
US6038924A (en) * 1997-12-22 2000-03-21 Research Foundation Of State Of New York Low frequency seismic accelerometer
US6715363B1 (en) 1998-02-20 2004-04-06 Wilcoxon Research, Inc. Method and apparatus for strain amplification for piezoelectric transducers
DE19917372B4 (de) * 1999-04-16 2009-01-02 Prüftechnik Dieter Busch AG Meßgerät zum Erfassen der Temperatur und der Schwingungen einer Oberfläche
US6619123B2 (en) * 2001-06-04 2003-09-16 Wisconsin Alumni Research Foundation Micromachined shock sensor
US8217790B2 (en) * 2009-05-26 2012-07-10 Script Michael H Portable motion detector and alarm system and method
US10987085B2 (en) 2015-12-10 2021-04-27 1929803 Ontario Corp Systems and methods for automated fluid response measurement
CA3005790C (fr) 2015-12-10 2023-10-10 1929803 Ontario Corp. D/B/A Ke2 Technologies Systemes et procedes pour mesure de reponse de fluide automatisee
US11109831B2 (en) 2018-07-17 2021-09-07 1929803 Ontario Corp, (o/a FloSonics Medical) Ultrasound patch for detecting fluid flow
US11937976B2 (en) 2020-07-06 2024-03-26 1929803 Ontario Corp Ultrasound patch with integrated flexible transducer assembly

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2386279A (en) * 1942-07-21 1945-10-09 Raymond W Tibbetts Piezoelectric device
US3252016A (en) * 1962-09-11 1966-05-17 Gulton Ind Inc Electro-mechanical transducer
US3311761A (en) * 1963-12-26 1967-03-28 Schloss Fred Transducer mounting
GB1126032A (en) * 1965-11-29 1968-09-05 Ass Elect Ind Improvements in or relating to dynamic strain transducers
US3631271A (en) * 1969-11-27 1971-12-28 Tatsuji Shimada Burglar alarm switch
US3893342A (en) * 1973-05-21 1975-07-08 Mark Products Accelerometer
US3911388A (en) * 1973-09-21 1975-10-07 Houston Products And Services Accelerometer
US4030396A (en) * 1975-10-17 1977-06-21 Mariner Ralph E Acoustic pickups

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011080466A1 (fr) * 2010-01-04 2011-07-07 Peugeot Citroën Automobiles SA Pince d'ecoute pour un outil d'aide au diagnostic vibro-acoustique utilise notamment dans le domaine automobile
US8991254B2 (en) 2010-01-04 2015-03-31 Peugeot Citroën Automobiles SA Listening clamp for a vibroacoustic diagnosis tool used mainly in the automotive industry

Also Published As

Publication number Publication date
DK170877A (fr) 1978-10-20
DK139085B (da) 1978-12-11
GB1597212A (en) 1981-09-03
DE2815933A1 (de) 1978-10-26
DE2815933C2 (de) 1983-02-24
DK139085C (fr) 1979-05-21
JPS5442185A (en) 1979-04-03
FR2388259B3 (fr) 1980-12-19
US4189655A (en) 1980-02-19

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