DE68902311D1 - Fuer statische druckvariationen unempfindlicher signalempfaenger. - Google Patents

Fuer statische druckvariationen unempfindlicher signalempfaenger.

Info

Publication number
DE68902311D1
DE68902311D1 DE8989403518T DE68902311T DE68902311D1 DE 68902311 D1 DE68902311 D1 DE 68902311D1 DE 8989403518 T DE8989403518 T DE 8989403518T DE 68902311 T DE68902311 T DE 68902311T DE 68902311 D1 DE68902311 D1 DE 68902311D1
Authority
DE
Germany
Prior art keywords
static pressure
pressure variations
signal receivers
sensitive signal
sensitive
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 - Fee Related
Application number
DE8989403518T
Other languages
English (en)
Other versions
DE68902311T2 (de
Inventor
Claude Beauducel
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.)
IFP Energies Nouvelles IFPEN
Original Assignee
IFP Energies Nouvelles IFPEN
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 IFP Energies Nouvelles IFPEN filed Critical IFP Energies Nouvelles IFPEN
Publication of DE68902311D1 publication Critical patent/DE68902311D1/de
Application granted granted Critical
Publication of DE68902311T2 publication Critical patent/DE68902311T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B06B1/0662—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 with an electrode on the sensitive surface
    • B06B1/0681—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 with an electrode on the sensitive surface and a damping structure
    • B06B1/0685—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 with an electrode on the sensitive surface and a damping structure on the back only of piezoelectric elements
DE8989403518T 1988-12-23 1989-12-15 Fuer statische druckvariationen unempfindlicher signalempfaenger. Expired - Lifetime DE68902311T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8817205A FR2641155B1 (de) 1988-12-23 1988-12-23

Publications (2)

Publication Number Publication Date
DE68902311D1 true DE68902311D1 (de) 1992-09-03
DE68902311T2 DE68902311T2 (de) 1993-02-18

Family

ID=9373437

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8989403518T Expired - Lifetime DE68902311T2 (de) 1988-12-23 1989-12-15 Fuer statische druckvariationen unempfindlicher signalempfaenger.

Country Status (8)

Country Link
US (1) US4996675A (de)
EP (1) EP0378021B1 (de)
JP (1) JPH02224598A (de)
CN (1) CN1019444B (de)
CA (1) CA2006565A1 (de)
DE (1) DE68902311T2 (de)
FR (1) FR2641155B1 (de)
NO (1) NO174490C (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2664119B1 (fr) * 1990-06-29 1993-06-11 Inst Francais Du Petrole Systeme integre de reception d'ondes acoustiques de grande longueur.
US5297553A (en) * 1992-09-23 1994-03-29 Acuson Corporation Ultrasound transducer with improved rigid backing
DE4318978C2 (de) * 1993-06-08 1996-09-05 Heidelberger Druckmasch Ag Piezoelektrischer Aktuator
US5646470A (en) * 1994-04-01 1997-07-08 Benthos, Inc. Acoustic transducer
US6418792B1 (en) 1999-09-24 2002-07-16 Stephen Edward Spychalski Pressure compensated transducer
JP4765782B2 (ja) * 2006-06-09 2011-09-07 日本電気株式会社 水中送波器及び水中送波方法
US8838392B2 (en) * 2009-10-05 2014-09-16 Westerngeco L.L.C. Noise attenuation in passive seismic data
US9110187B2 (en) * 2009-10-05 2015-08-18 Westerngeco L.L.C. Sensor assembly having a seismic sensor and a divergence sensor
US8712694B2 (en) * 2009-10-05 2014-04-29 Westerngeco L.L.C. Combining seismic data from sensors to attenuate noise
US20110085417A1 (en) * 2009-10-12 2011-04-14 Daniel Ronnow String of Sensor Assemblies Having a Seismic Sensor and Pressure Sensor
US8520469B2 (en) * 2009-10-12 2013-08-27 Westerngeco L.L.C. Sensor assembly having a seismic sensor, pressure sensor, and processor to apply first and second digital filters
GB201001004D0 (en) * 2010-01-22 2010-03-10 Reckitt Benckiser Inc Toilet flush detection system utilizing transducer with piezoelectric sounder element
US10602289B2 (en) * 2010-03-09 2020-03-24 Baker Hughes, A Ge Company, Llc Acoustic transducer with a liquid-filled porous medium backing and methods of making and using same
US9091783B2 (en) 2010-11-04 2015-07-28 Westerngeco L.L.C. Computing a calibration term based on combining divergence data and seismic data
CN103017949A (zh) * 2012-11-28 2013-04-03 安徽埃克森科技集团有限公司 一种带振动补偿的压阻式压力传感器
US9594174B2 (en) 2013-02-01 2017-03-14 Westerngeco L.L.C. Computing rotation data using a gradient of translational data
US10408954B2 (en) 2014-01-17 2019-09-10 Westerngeco L.L.C. Seismic sensor coupling
CN104297795B (zh) * 2014-11-06 2016-09-14 安徽理工大学 一种基于阻抗分析的飞机黑匣子探测实验装置及方法
CN104316955B (zh) * 2014-11-06 2017-01-18 安徽理工大学 一种基于阻抗分析的构造地震预测实验装置及方法
US9534492B2 (en) * 2014-11-11 2017-01-03 Baker Hughes Incorporated Pressure compensated capacitive micromachined ultrasound transducer for downhole applications

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE916593C (de) * 1949-09-08 1954-08-12 Ultrakust Geraetebau Dr Ing Os Ultraschallgeber
US3372370A (en) * 1965-09-22 1968-03-05 Aquasonics Engineering Company Electroacoustic transducer
US3375489A (en) * 1966-03-14 1968-03-26 Harry W. Kompanek Pressure compensated transducer
US3380019A (en) * 1967-01-27 1968-04-23 Navy Usa Pressure-gradient hydrophone
US3900543A (en) * 1971-01-11 1975-08-19 Schlumberger Technology Corp Method for making a foam seismic streamer
FR2198155A1 (de) * 1972-08-29 1974-03-29 Schlumberger Technology Corp
US3794866A (en) * 1972-11-09 1974-02-26 Automation Ind Inc Ultrasonic search unit construction
IT1041264B (it) * 1974-08-19 1980-01-10 Matsushita Electric Ind Co Ltd Dispositivo rivelatore di vibrazioni in particolare vibrazioni sonore e procedimento di messa in opera
US4166229A (en) * 1978-02-23 1979-08-28 The United States Of America As Represented By The Secretary Of The Navy Piezoelectric polymer membrane stress gage
US4439497A (en) * 1982-05-27 1984-03-27 Shell Oil Company Ultrasonic sound absorber

Also Published As

Publication number Publication date
FR2641155B1 (de) 1994-06-03
CN1019444B (zh) 1992-12-09
NO895169L (no) 1990-06-25
FR2641155A1 (de) 1990-06-29
CA2006565A1 (fr) 1990-06-23
NO174490C (no) 1994-05-11
US4996675A (en) 1991-02-26
DE68902311T2 (de) 1993-02-18
NO174490B (no) 1994-01-31
JPH02224598A (ja) 1990-09-06
CN1043845A (zh) 1990-07-11
EP0378021A1 (de) 1990-07-18
NO895169D0 (no) 1989-12-21
EP0378021B1 (de) 1992-07-29

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee