NO962131L - Hydrofon med lav forvrengning - Google Patents

Hydrofon med lav forvrengning

Info

Publication number
NO962131L
NO962131L NO962131A NO962131A NO962131L NO 962131 L NO962131 L NO 962131L NO 962131 A NO962131 A NO 962131A NO 962131 A NO962131 A NO 962131A NO 962131 L NO962131 L NO 962131L
Authority
NO
Norway
Prior art keywords
elements
hydrophone
amplifying
pressure signal
piezoelectric element
Prior art date
Application number
NO962131A
Other languages
English (en)
Other versions
NO962131D0 (no
Inventor
Louis W Erath
Original Assignee
Syntron Inc
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 Syntron Inc filed Critical Syntron Inc
Publication of NO962131D0 publication Critical patent/NO962131D0/no
Publication of NO962131L publication Critical patent/NO962131L/no

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
    • B06B1/0603—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 piezoelectric bender, e.g. bimorph
    • 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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
    • G10K9/122—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using piezoelectric driving means

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Transducers For Ultrasonic Waves (AREA)

Abstract

Et system (10) og en fremgangsmåte tilveiebringer. en hydrofon med lav forvrengning. Et første, kjent piezoelektrisk element (HJ er montert for å motta et trykk-signal (P). Et andre piezoelektrisk element (H) er for-synt med en anordning for å motta og forsterke det samme trykksignalet. Siden et piezoelektrisk element er en kondensator, er en annen kondensator (C) koplet i paral-lell med det andre elementet (H) for å tjene som en dele-anordning. Utgangsspenningen fra kombinasjonen av de to elementene tas som forskjellen mellom de to elementenes positive terminaler. Således er virkningen av trykkfor-sterkeren (24) og kapasitans-deleanordningen å tilveie-bringe en forskjell i potensial mellom grunntone-signalene fra de to elementene, mens amplituden av de annen-harmoniske gjøres like. De to like annen-harmoniske utslukker hverandre ved utgangsterminalene, mens et bruk-bart grunntone-signal beholdes for videre signalbehand-ling. Videre kan anordningen for å forsterke trykksignalet omfatte et konusformet baffel (24) for forsterk-ning av trykksignalet, eller det kan omfatte en tynnere membran (16) som det piezoelektriske elementet er montert på for å øke bøyningen av dette, og således påkjenningen på elementet. Fler enn to hydrofon-elementer kan også være sammenkoplet for å eliminere forvrengning enda bedre : over et bredt trykkområde.
NO962131A 1995-05-26 1996-05-24 Hydrofon med lav forvrengning NO962131L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/452,386 US5541894A (en) 1995-05-26 1995-05-26 Low distortion hydrophone

Publications (2)

Publication Number Publication Date
NO962131D0 NO962131D0 (no) 1996-05-24
NO962131L true NO962131L (no) 1996-11-27

Family

ID=23796255

Family Applications (1)

Application Number Title Priority Date Filing Date
NO962131A NO962131L (no) 1995-05-26 1996-05-24 Hydrofon med lav forvrengning

Country Status (4)

Country Link
US (1) US5541894A (no)
CA (1) CA2176162C (no)
GB (1) GB2301258A (no)
NO (1) NO962131L (no)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5675556A (en) * 1995-10-19 1997-10-07 Syntron, Inc. Hydrophone structure and method
US5815466A (en) * 1995-12-27 1998-09-29 Syntron, Inc. Hydrophone structure with reverse bend of piezoelectric element
FR2796514B1 (fr) 1999-07-13 2001-08-17 Inst Francais Du Petrole Hydrophone a faible taux de distorsion
US6498769B1 (en) 2000-08-04 2002-12-24 Input/Output, Inc. Method and apparatus for a non-oil-filled towed array with a novel hydrophone design and uniform buoyancy technique
US7206258B1 (en) 2005-04-13 2007-04-17 United States Of America As Represented By The Secretary Of The Navy Dual response acoustical sensor system
EP2690468B1 (en) 2012-07-27 2019-03-27 Sercel A streamer for seismic prospection comprising tilt compensation of directional sensors
CN106404158A (zh) * 2016-08-31 2017-02-15 北京越音速科技有限公司 水听器及换能方法、水听装置

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3187300A (en) * 1963-01-29 1965-06-01 Chesapeake Instr Corp Pressure-compensated transducer
US5029147A (en) * 1969-02-26 1991-07-02 The United States Of America As Represented By The Secretary Of The Navy Acoustic, underwater, telemetry system
US3988620A (en) * 1971-11-26 1976-10-26 Aquatronics, Inc. Transducer having enhanced acceleration cancellation characteristics
GB1435125A (en) * 1972-05-22 1976-05-12 Texas Instruments Inc Seismic cable
US4017824A (en) * 1975-06-06 1977-04-12 The Bendix Corporation Acceleration-insensitive hydrophone
CA1069189A (en) * 1977-11-25 1980-01-01 Her Majesty The Queen In Right Of Canada As Represented By The Minister Of National Defence Of Her Majesty's Canadian Government Modular low noise preamplifier
EP0057982B1 (en) * 1981-02-06 1985-12-11 EMI Limited Device sensitive to pressure waves
US4509037A (en) * 1981-06-12 1985-04-02 Gould Inc. Enhanced delta modulation encoder
US4977546A (en) * 1982-01-29 1990-12-11 The United States Of America As Represented By The Secretary Of The Navy Signal stabilization in optical hydrophones
US4464739A (en) * 1982-07-26 1984-08-07 The United States Of America As Represented By The Secretary Of The Navy Sampled towed array telemetry
US4799201A (en) * 1983-12-16 1989-01-17 Hydroacoustics, Inc. Methods and apparatus for reducing correlation sidelobe interference in seismic profiling systems
US4833659A (en) * 1984-12-27 1989-05-23 Westinghouse Electric Corp. Sonar apparatus
US5363344A (en) * 1987-08-10 1994-11-08 Sofen Michael E Acoustic sensor having a shell-mounted transducer
US4876675A (en) * 1987-09-12 1989-10-24 Ngk Spark Plug Co., Ltd. Towed piezoelectric cable
US5051799A (en) * 1989-02-17 1991-09-24 Paul Jon D Digital output transducer
US5193077A (en) * 1989-05-15 1993-03-09 Atlantic Richfield Company Method and apparatus for improved seismic prospecting
US5335548A (en) * 1992-06-19 1994-08-09 The United States Of America As Represented By The Department Of Energy Non-linear optical crystal vibration sensing device

Also Published As

Publication number Publication date
GB2301258A (en) 1996-11-27
CA2176162C (en) 1998-10-27
US5541894A (en) 1996-07-30
NO962131D0 (no) 1996-05-24
GB9610607D0 (en) 1996-07-31
CA2176162A1 (en) 1996-11-27

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