ATE236409T1 - Zweidimensionale wandleranordnung mit strahlformer - Google Patents

Zweidimensionale wandleranordnung mit strahlformer

Info

Publication number
ATE236409T1
ATE236409T1 AT97909998T AT97909998T ATE236409T1 AT E236409 T1 ATE236409 T1 AT E236409T1 AT 97909998 T AT97909998 T AT 97909998T AT 97909998 T AT97909998 T AT 97909998T AT E236409 T1 ATE236409 T1 AT E236409T1
Authority
AT
Austria
Prior art keywords
array
transducer
beam former
transducer arrangement
dimensional transducer
Prior art date
Application number
AT97909998T
Other languages
English (en)
Inventor
Xiaolong Yu
Steven E Bradley
Francis D Rowe
Original Assignee
Rowe Deines Instr 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 Rowe Deines Instr Inc filed Critical Rowe Deines Instr Inc
Application granted granted Critical
Publication of ATE236409T1 publication Critical patent/ATE236409T1/de

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B06GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06BMETHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/06Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
    • B06B1/0607Methods 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 multiple elements
    • B06B1/0622Methods 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 multiple elements on one surface
    • B06B1/0629Square array
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/02Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/50Systems of measurement, based on relative movement of the target
    • G01S15/58Velocity or trajectory determination systems; Sense-of-movement determination systems
    • G01S15/60Velocity or trajectory determination systems; Sense-of-movement determination systems wherein the transmitter and receiver are mounted on the moving object, e.g. for determining ground speed, drift angle, ground track
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10KSOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18Methods or devices for transmitting, conducting or directing sound
    • G10K11/26Sound-focusing or directing, e.g. scanning
    • G10K11/34Sound-focusing or directing, e.g. scanning using electrical steering of transducer arrays, e.g. beam steering
    • G10K11/341Circuits therefor
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88Sonar systems specially adapted for specific applications
    • G01S15/89Sonar systems specially adapted for specific applications for mapping or imaging

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Acoustics & Sound (AREA)
  • Remote Sensing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mechanical Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
AT97909998T 1996-10-07 1997-10-07 Zweidimensionale wandleranordnung mit strahlformer ATE236409T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/726,644 US5808967A (en) 1996-10-07 1996-10-07 Two-dimensional array transducer and beamformer
PCT/US1997/018061 WO1998015846A1 (en) 1996-10-07 1997-10-07 Two-dimensional array transducer and beamformer

Publications (1)

Publication Number Publication Date
ATE236409T1 true ATE236409T1 (de) 2003-04-15

Family

ID=24919434

Family Applications (1)

Application Number Title Priority Date Filing Date
AT97909998T ATE236409T1 (de) 1996-10-07 1997-10-07 Zweidimensionale wandleranordnung mit strahlformer

Country Status (7)

Country Link
US (1) US5808967A (de)
EP (1) EP0929825B1 (de)
JP (2) JP3995270B2 (de)
AT (1) ATE236409T1 (de)
DE (1) DE69720483T2 (de)
NO (1) NO331521B1 (de)
WO (1) WO1998015846A1 (de)

Families Citing this family (116)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6016313A (en) * 1996-11-07 2000-01-18 Wavtrace, Inc. System and method for broadband millimeter wave data communication
JP3636573B2 (ja) * 1997-06-27 2005-04-06 パイオニア株式会社 輝度制御装置
US6160756A (en) * 1998-06-15 2000-12-12 Guigne International Limited Seabed sonar matrix system
US8068897B1 (en) 1999-03-01 2011-11-29 Gazdzinski Robert F Endoscopic smart probe and method
US10973397B2 (en) 1999-03-01 2021-04-13 West View Research, Llc Computerized information collection and processing apparatus
US7914442B1 (en) 1999-03-01 2011-03-29 Gazdzinski Robert F Endoscopic smart probe and method
US8636648B2 (en) 1999-03-01 2014-01-28 West View Research, Llc Endoscopic smart probe
US6285628B1 (en) * 1999-09-13 2001-09-04 L3 Communications Corporation Swept transit beam bathymetric sonar
JP4560858B2 (ja) * 1999-10-25 2010-10-13 ソニー株式会社 送受信装置
US6368276B1 (en) 1999-11-23 2002-04-09 James K. Bullis Deep penetration beamformed television
US6307507B1 (en) * 2000-03-07 2001-10-23 Motorola, Inc. System and method for multi-mode operation of satellite phased-array antenna
US20030195415A1 (en) * 2002-02-14 2003-10-16 Iddan Gavriel J. Device, system and method for accoustic in-vivo measuring
JP4216647B2 (ja) * 2003-05-29 2009-01-28 古野電気株式会社 超音波送信装置、超音波送受信装置、および探知装置
EP1656568B1 (de) * 2003-07-11 2017-12-27 Teledyne RESON A/S Systeme und verfahren zur implementierung von frequenzgesteuerten acoutic-arrays für die 2d- und 3d-abbildung
WO2006035588A1 (ja) * 2004-09-29 2006-04-06 Matsushita Electric Industrial Co., Ltd. 超音波診断装置
DE102005031973B3 (de) * 2005-07-08 2006-08-31 Atlas Elektronik Gmbh Vorrichtung zum Bestimmen der Eigengeschwindigkeit eines Wasserfahrzeugs
US8409094B2 (en) * 2006-03-15 2013-04-02 Kabushiki Kaisha Toshiba Ultrasound diagnostic apparatus and method for displaying ultrasound image
JP5207335B2 (ja) * 2006-03-29 2013-06-12 Necトーキン株式会社 超音波フェイズドアレイ送受波器
WO2008105932A2 (en) * 2006-09-15 2008-09-04 Teledyne Rd Instruments, Inc. System and method for forward looking sonar
US7542374B2 (en) * 2006-09-28 2009-06-02 Teledyne Rd Instruments, Inc. System and method for acoustic Doppler velocity processing with a phased array transducer including applying correction factors to velocities orthogonal to the transducer face
US7539082B2 (en) * 2006-09-28 2009-05-26 Teledyne Rd Instruments, Inc. System and method for acoustic Doppler velocity processing with a phased array transducer including using a wide bandwidth pulse transmission to resolve ambiguity in a narrow bandwidth velocity estimate
CA2664584C (en) * 2006-09-28 2016-01-12 Teledyne Rd Instruments, Inc. System and method for acoustic doppler velocity processing with a phased array transducer
US7839720B2 (en) * 2006-09-28 2010-11-23 Teledyne Rd Instruments, Inc. System and method for acoustic doppler velocity processing with a phased array transducer including using differently coded transmit pulses in each beam so that the cross-coupled side lobe error is removed
CN101558324B (zh) * 2006-11-06 2012-10-17 涅磬公司 用于声雷达应用的换能器阵列布置以及操作
US8009513B2 (en) * 2006-11-06 2011-08-30 Second Wind Systems, Inc. Transducer array arrangement and operation for sodar application
US8004935B2 (en) * 2007-05-10 2011-08-23 Second Wind Systems, Inc. Sodar housing with non-woven fabric lining for sound absorption
US8351295B2 (en) * 2007-06-01 2013-01-08 Second Wind Systems, Inc. Waterproof membrane cover for acoustic arrays in sodar systems
US8174930B2 (en) * 2007-06-01 2012-05-08 Second Wind Systems, Inc. Housing for phased array monostatic sodar systems
US7827861B2 (en) * 2007-06-01 2010-11-09 Second Wind, Inc. Position correction in sodar and meteorological lidar systems
US7847925B2 (en) * 2007-06-18 2010-12-07 Teledyne Rd Instruments, Inc. System and method of acoustic doppler beamforming
US7889601B2 (en) * 2007-06-19 2011-02-15 Lockheed Martin Corporation Lightweight acoustic array
US7420875B1 (en) * 2007-06-25 2008-09-02 The United States Of America As Represented By The Secretary Of The Navy Methods and systems for use of an acoustic doppler current profiler for measurement of compact jets
JP4968847B2 (ja) * 2008-01-23 2012-07-04 Necトーキン株式会社 超音波フェイズドアレイ送受波器
US7952513B2 (en) * 2008-06-16 2011-05-31 Lockheed Martin Corporation Counter target acquisition radar and acoustic adjunct for classification
US8264405B2 (en) * 2008-07-31 2012-09-11 Raytheon Company Methods and apparatus for radiator for multiple circular polarization
US8254208B2 (en) * 2008-12-08 2012-08-28 Teledyne Rd Instruments, Inc. Multi-state beamforming array
KR101295849B1 (ko) * 2008-12-18 2013-08-12 삼성전자주식회사 음향 방사 패턴 제어 장치 및 방법
JP5164218B2 (ja) * 2009-01-26 2013-03-21 Necトーキン株式会社 超音波フェイズドアレイ送受波器
US8264908B2 (en) * 2009-03-09 2012-09-11 Second Wind Systems, Inc. Method of detecting and compensating for precipitation in sodar systems
US8300499B2 (en) 2009-07-14 2012-10-30 Navico, Inc. Linear and circular downscan imaging sonar
US8305840B2 (en) * 2009-07-14 2012-11-06 Navico, Inc. Downscan imaging sonar
AU2015201220B2 (en) * 2009-07-14 2017-02-23 Navico Holding As Downscan imaging sonar
CN103650352B (zh) 2010-11-01 2020-03-06 罗韦技术有限公司 多频二维相控阵列换能器
US9142206B2 (en) 2011-07-14 2015-09-22 Navico Holding As System for interchangeable mounting options for a sonar transducer
US9182486B2 (en) 2011-12-07 2015-11-10 Navico Holding As Sonar rendering systems and associated methods
US9268020B2 (en) 2012-02-10 2016-02-23 Navico Holding As Sonar assembly for reduced interference
US9354312B2 (en) 2012-07-06 2016-05-31 Navico Holding As Sonar system using frequency bursts
DE102013100894A1 (de) * 2013-01-29 2014-07-31 Atlas Elektronik Gmbh Unterwasserschallsignal, Unterwassersender oder Unterwasserempfänger, Unterwassersonar, Unterwasserfahrzeug und Nachrüstsatz
US9823104B2 (en) 2013-02-21 2017-11-21 Rowe Technologies, Inc. Acquatic velocity scanning apparatus and methods
HK1224380A1 (zh) * 2013-08-15 2017-08-18 罗韦技术有限公司 子阵列换能器设备及方法
US9506790B2 (en) * 2015-03-24 2016-11-29 Daniel Measurement And Control, Inc. Transducer mini-horn array for ultrasonic flow meter
US10551498B2 (en) 2015-05-21 2020-02-04 Navico Holding As Wireless sonar device
WO2016205938A1 (en) * 2015-06-22 2016-12-29 Appetite Lab Inc. Devices and methods for locating and visualizing underwater objects
EP3329299A4 (de) 2015-07-31 2019-03-27 Teledyne Instruments, Inc. Schallgeschwindigkeitssensor mit kleiner öffnung
US10578706B2 (en) 2015-08-06 2020-03-03 Navico Holding As Wireless sonar receiver
CA3000266A1 (en) * 2015-10-09 2017-04-13 Microsonic Gmbh Sensor with monolithic ultrasonic array
KR102551252B1 (ko) * 2015-11-11 2023-07-05 삼성메디슨 주식회사 초음파 진단 장치 및 그 동작방법
US10151829B2 (en) 2016-02-23 2018-12-11 Navico Holding As Systems and associated methods for producing sonar image overlay
US10132924B2 (en) * 2016-04-29 2018-11-20 R2Sonic, Llc Multimission and multispectral sonar
US10315222B2 (en) 2016-05-04 2019-06-11 Invensense, Inc. Two-dimensional array of CMOS control elements
US10445547B2 (en) 2016-05-04 2019-10-15 Invensense, Inc. Device mountable packaging of ultrasonic transducers
US10670716B2 (en) 2016-05-04 2020-06-02 Invensense, Inc. Operating a two-dimensional array of ultrasonic transducers
US10656255B2 (en) 2016-05-04 2020-05-19 Invensense, Inc. Piezoelectric micromachined ultrasonic transducer (PMUT)
US10408797B2 (en) 2016-05-10 2019-09-10 Invensense, Inc. Sensing device with a temperature sensor
US10706835B2 (en) 2016-05-10 2020-07-07 Invensense, Inc. Transmit beamforming of a two-dimensional array of ultrasonic transducers
US10600403B2 (en) * 2016-05-10 2020-03-24 Invensense, Inc. Transmit operation of an ultrasonic sensor
US11673165B2 (en) 2016-05-10 2023-06-13 Invensense, Inc. Ultrasonic transducer operable in a surface acoustic wave (SAW) mode
US10539539B2 (en) 2016-05-10 2020-01-21 Invensense, Inc. Operation of an ultrasonic sensor
US10441975B2 (en) 2016-05-10 2019-10-15 Invensense, Inc. Supplemental sensor modes and systems for ultrasonic transducers
US10452887B2 (en) 2016-05-10 2019-10-22 Invensense, Inc. Operating a fingerprint sensor comprised of ultrasonic transducers
US10632500B2 (en) 2016-05-10 2020-04-28 Invensense, Inc. Ultrasonic transducer with a non-uniform membrane
US10562070B2 (en) 2016-05-10 2020-02-18 Invensense, Inc. Receive operation of an ultrasonic sensor
US10719077B2 (en) 2016-10-13 2020-07-21 Navico Holding As Castable sonar devices and operations in a marine environment
US10891461B2 (en) 2017-05-22 2021-01-12 Invensense, Inc. Live fingerprint detection utilizing an integrated ultrasound and infrared sensor
US10474862B2 (en) 2017-06-01 2019-11-12 Invensense, Inc. Image generation in an electronic device using ultrasonic transducers
US10643052B2 (en) * 2017-06-28 2020-05-05 Invensense, Inc. Image generation in an electronic device using ultrasonic transducers
US10067228B1 (en) * 2017-09-11 2018-09-04 R2Sonic, Llc Hyperspectral sonar
US10545236B2 (en) * 2017-09-18 2020-01-28 Navico Holding As Sonar transducer assembly having a printed circuit board with flexible element tabs
US11367425B2 (en) 2017-09-21 2022-06-21 Navico Holding As Sonar transducer with multiple mounting options
CN111479514A (zh) 2017-11-15 2020-07-31 蝴蝶网络有限公司 超声设备和用于制造超声装置的方法
US10984209B2 (en) 2017-12-01 2021-04-20 Invensense, Inc. Darkfield modeling
WO2019109010A1 (en) 2017-12-01 2019-06-06 Invensense, Inc. Darkfield tracking
US10997388B2 (en) 2017-12-01 2021-05-04 Invensense, Inc. Darkfield contamination detection
US11151355B2 (en) 2018-01-24 2021-10-19 Invensense, Inc. Generation of an estimated fingerprint
GB2572475B (en) * 2018-02-02 2022-11-09 Teledyne Instruments Inc Acoustic phased array with reduced beam angle
US11333757B2 (en) 2018-02-02 2022-05-17 Teledyne Instruments, Inc. Acoustic phased array with reduced beam angle
US10816652B2 (en) * 2018-02-28 2020-10-27 Codaoctopus Group Method of compressing sonar data
WO2019167563A1 (ja) * 2018-03-02 2019-09-06 古野電気株式会社 水中探知装置、および、水中探知方法
US10755067B2 (en) 2018-03-22 2020-08-25 Invensense, Inc. Operating a fingerprint sensor comprised of ultrasonic transducers
US10718865B2 (en) * 2018-05-14 2020-07-21 Coda Octopus Group Method of compressing beamformed sonar data
US11619527B2 (en) 2018-10-01 2023-04-04 Micro Motion, Inc. Ultrasonic transducer with a sealed 3D-printed mini-horn array
EP3861371A4 (de) 2018-10-01 2022-04-13 Teledyne Instruments, Inc. Akustisches doppelfrequenzphasenarray mit gemeinsamen strahlwinkeln
US10936843B2 (en) 2018-12-28 2021-03-02 Invensense, Inc. Segmented image acquisition
US11188735B2 (en) 2019-06-24 2021-11-30 Invensense, Inc. Fake finger detection using ridge features
WO2020264046A1 (en) 2019-06-25 2020-12-30 Invensense, Inc. Fake finger detection based on transient features
US11176345B2 (en) 2019-07-17 2021-11-16 Invensense, Inc. Ultrasonic fingerprint sensor with a contact layer of non-uniform thickness
US11216632B2 (en) 2019-07-17 2022-01-04 Invensense, Inc. Ultrasonic fingerprint sensor with a contact layer of non-uniform thickness
US11232549B2 (en) 2019-08-23 2022-01-25 Invensense, Inc. Adapting a quality threshold for a fingerprint image
WO2021053515A1 (en) * 2019-09-17 2021-03-25 Callaghan Innovation Sonar system and method
US10887709B1 (en) * 2019-09-25 2021-01-05 Amazon Technologies, Inc. Aligned beam merger
US11392789B2 (en) 2019-10-21 2022-07-19 Invensense, Inc. Fingerprint authentication using a synthetic enrollment image
CN111060915B (zh) * 2020-01-15 2025-06-24 中国水产科学研究院渔业机械仪器研究所 双换能器阵子合并收发的多波束渔用声呐系统
US11460957B2 (en) 2020-03-09 2022-10-04 Invensense, Inc. Ultrasonic fingerprint sensor with a contact layer of non-uniform thickness
US11243300B2 (en) 2020-03-10 2022-02-08 Invensense, Inc. Operating a fingerprint sensor comprised of ultrasonic transducers and a presence sensor
US11328165B2 (en) 2020-04-24 2022-05-10 Invensense, Inc. Pressure-based activation of fingerprint spoof detection
US11995909B2 (en) 2020-07-17 2024-05-28 Tdk Corporation Multipath reflection correction
US12174295B2 (en) 2020-08-07 2024-12-24 Tdk Corporation Acoustic multipath correction
CA3217832A1 (en) * 2021-04-30 2022-11-03 Evident Canada, Inc. Contemporaneous firing scheme for acoustic inspection
US12416807B2 (en) 2021-08-20 2025-09-16 Tdk Corporation Retinal projection display system
US12197681B2 (en) 2021-08-25 2025-01-14 Tdk Corporation Anchor configurations for an array of ultrasonic transducers
WO2023240044A1 (en) 2022-06-06 2023-12-14 Teledyne Instruments, Inc. Transducer with improved velocity estimation accuracy systems and methods
SE546011C2 (en) * 2022-11-16 2024-04-09 Myvox Ab Parametric array loudspeaker for emitting acoustic energy to create a directional beam
DE102023100370A1 (de) * 2023-01-10 2024-07-11 Atlas Elektronik Gmbh Informationssystem für ein Unterwasserfahrzeug zur Bestimmung von Navigationsinformationen mittels Sonar
US12401942B1 (en) 2023-05-25 2025-08-26 Amazon Technologies, Inc. Group beam selection and beam merging
FR3153407A1 (fr) 2023-09-25 2025-03-28 Farès Abda Systèmes et procédés de mesures par effet doppler à l’aide d’une architecture hexagonale optimale à géométrie fixe ou adaptative
CN120847805B (zh) * 2025-09-23 2025-12-12 中国船舶集团有限公司第七一九研究所 基于时延控制的宽带波束形成声学多普勒测速系统及方法

Family Cites Families (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3324453A (en) * 1966-10-18 1967-06-06 Gen Dynamics Corp Recirculating delay line phase control system for use in producing a variable direction beam from a fixed transmitting array
US3346837A (en) * 1966-10-18 1967-10-10 Gen Dynamics Corp Delay counter phase control system for use in producing a variable direction beam from a fixed transmitting array
US3436721A (en) * 1968-01-16 1969-04-01 Gen Instrument Corp Fan beam acoustic doppler navigation system
DE1798276B1 (de) * 1968-09-19 1972-04-27 Krupp Gmbh Vorrichtung zur bestimmung der geschwindigkeit und/oder des weges von fahrzeugen durch messung des dopplereffektes
DE1962436C1 (de) * 1969-12-12 1984-05-24 Siemens AG, 1000 Berlin und 8000 München Dopplernavigations-Radarantenne mit automatischer Land- See- Fehlerkorrektur auf Grund unterschiedlich geneigter Keulengruppen
US3806930A (en) * 1969-12-23 1974-04-23 Siemens Ag Method and apparatus for electronically controlling the pattern of a phased array antenna
US3704465A (en) * 1970-08-28 1972-11-28 Hazeltine Corp Angular position determining system compensated for doppler
US4159462A (en) * 1977-08-18 1979-06-26 General Electric Company Ultrasonic multi-sector scanner
US4121209A (en) * 1977-10-20 1978-10-17 The United States Of America As Represented By The Secretary Of The Navy Two-axis motion compensation for AMTI
US4208916A (en) * 1978-09-13 1980-06-24 Picker Corporation Electronic ultrasonic sector scanning apparatus and method
US4241610A (en) * 1979-02-05 1980-12-30 Varian Associates, Inc. Ultrasonic imaging system utilizing dynamic and pseudo-dynamic focusing
US4265126A (en) * 1979-06-15 1981-05-05 General Electric Company Measurement of true blood velocity by an ultrasound system
FR2460489A1 (fr) * 1979-07-04 1981-01-23 Labo Electronique Physique Circuit de traitement des signaux de reception d'une mosaique de transducteur ultra-sonore utilisee en echographie de type b
US4413332A (en) * 1981-06-24 1983-11-01 The United States Of America As Represented By The Secretary Of The Navy Scanning beamformer for a very high resolution circular arc sonar
US4423494A (en) * 1981-09-21 1983-12-27 Sperry Corporation Beam steerable sonar array
US4532519A (en) * 1981-10-14 1985-07-30 Rudish Ronald M Phased array system to produce, steer and stabilize non-circularly-symmetric beams
US4550607A (en) * 1984-05-07 1985-11-05 Acuson Phased array acoustic imaging system
US4641291A (en) * 1985-02-19 1987-02-03 Ametek, Inc. Phased array Doppler sonar transducer
US4661937A (en) * 1985-04-01 1987-04-28 Sperry Corporation Sonar beam steering circuit
US4736463A (en) * 1986-08-22 1988-04-05 Itt Corporation Electro-optically controlled wideband multi-beam phased array antenna
US4882588A (en) * 1986-12-22 1989-11-21 Hughes Aircraft Company Steerable beam antenna system using butler matrix
US5117692A (en) * 1988-10-19 1992-06-02 Institute Of Biomedical Engineering And Medical Informatics Of The University Of Zurich And The Swiss Federal Institute Of Technology Zurich Method and configuration for measuring a two-dimensional reflective structure
JPH02217000A (ja) * 1989-02-16 1990-08-29 Hitachi Ltd 超音波探触子
EP0446610A1 (de) * 1990-03-07 1991-09-18 Hughes Aircraft Company Vergrösserte phasengesteuerte Gruppenantenne mit digitalem Strahlformungsnetzwerk
DE69126040T2 (de) * 1990-09-26 1998-01-02 Rowe, Deines Instruments Inc., San Diego, Calif. Akustischer strömungsprofilmesser mit grosser dopplerbandbreite
US5208785A (en) * 1990-09-26 1993-05-04 Rowe, Deines Instruments Incorporated Broadband acoustic doppler current profiler
US5343443A (en) * 1990-10-15 1994-08-30 Rowe, Deines Instruments, Inc. Broadband acoustic transducer
US5327895A (en) * 1991-07-10 1994-07-12 Kabushiki Kaisha Toshiba Ultrasonic probe and ultrasonic diagnosing system using ultrasonic probe
FR2709559B1 (fr) * 1993-08-31 1995-10-06 Thomson Csf Système Sonar pour courantomètre et Loch Doppler.
US5550792A (en) * 1994-09-30 1996-08-27 Edo Western Corp. Sliced phased array doppler sonar system
US5530683A (en) * 1995-04-06 1996-06-25 The United States Of America As Represented By The Secretary Of The Navy Steerable acoustic transducer

Also Published As

Publication number Publication date
NO331521B1 (no) 2012-01-16
DE69720483D1 (de) 2003-05-08
JP2001502058A (ja) 2001-02-13
JP3995270B2 (ja) 2007-10-24
US5808967A (en) 1998-09-15
EP0929825B1 (de) 2003-04-02
NO991555D0 (no) 1999-03-30
WO1998015846A1 (en) 1998-04-16
JP4087430B2 (ja) 2008-05-21
JP2007192830A (ja) 2007-08-02
DE69720483T2 (de) 2003-12-24
EP0929825A1 (de) 1999-07-21
NO991555L (no) 1999-06-04

Similar Documents

Publication Publication Date Title
ATE236409T1 (de) Zweidimensionale wandleranordnung mit strahlformer
US10013969B2 (en) Acoustic lens for micromachined ultrasound transducers
WO2003011749A3 (en) Micro-machined ultrasonic transducer (mut) array
DE2960984D1 (en) Method for transferring ultrasonic energy to or from an object and focused ultrasonic transducer
ATE2293T1 (de) Ultraschallwandler.
WO2003032678A3 (en) Ultrasonic transducer for parametric array
US3736552A (en) Acoustic imaging device using multiple element electret transducer
ES8205551A1 (es) Un dispositivo adaptador de impedancias para acoplar energia sonica de banda ancha entre uno o mas transductores acusti-cos y un objeto.
JPH0448040B2 (de)
ATE397957T1 (de) Interstitieller ultraschall-thermotherapie- applikator
US4704556A (en) Transducers
EP0372589A3 (de) Ultraschallsonde
US2753543A (en) Transducers
ES8403688A1 (es) Aparato para transmitir y recibir una pluralidad de haces de rayos sonar.
MY135700A (en) Surface acoustic wave device
GB2151025A (en) Transducer
RU2085054C1 (ru) Точечный источник звуковых волн
Bjørnø Ultrasonic sensors
Kachanov et al. Development of a broadband low-frequency mosaic ultrasonic piezoelectric transducer with a limited aperture
JPS60195431A (ja) 複合触覚センサ
TW363143B (en) Three-dimensional display of periodically retarded lenticular plate and manufacturing method thereof
JPS62148957U (de)
JPS5669995A (en) Diaphragm for audio loudspeaker
JPS5862555A (ja) 超音波探触子
Gubbini et al. The effect of cross-coupling in the acoustic field generated by a phased array transducer

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties