[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

EP0017216A3 - Ultrasonic transducer - Google Patents

Ultrasonic transducer Download PDF

Info

Publication number
EP0017216A3
EP0017216A3 EP80101743A EP80101743A EP0017216A3 EP 0017216 A3 EP0017216 A3 EP 0017216A3 EP 80101743 A EP80101743 A EP 80101743A EP 80101743 A EP80101743 A EP 80101743A EP 0017216 A3 EP0017216 A3 EP 0017216A3
Authority
EP
European Patent Office
Prior art keywords
dielectric constant
acoustic impedance
ultrasonic transducer
mate
superimposed
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
EP80101743A
Other languages
German (de)
Other versions
EP0017216A2 (en
EP0017216B1 (en
Inventor
Jaques Dr. Dipl.-Ing. Borburgh
Ingmar Dr. Dipl.-Phys. Feigt
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to AT80101743T priority Critical patent/ATE2293T1/en
Publication of EP0017216A2 publication Critical patent/EP0017216A2/en
Publication of EP0017216A3 publication Critical patent/EP0017216A3/en
Application granted granted Critical
Publication of EP0017216B1 publication Critical patent/EP0017216B1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • 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
    • B06B1/0688—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 with foil-type piezoelectric elements, e.g. PVDF
    • 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
    • G10K11/00—Methods 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
    • G10K11/02—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S310/00—Electrical generator or motor structure
    • Y10S310/80—Piezoelectric polymers, e.g. PVDF

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Mechanical Engineering (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Surgical Instruments (AREA)

Abstract

In exemplary embodiments, a transmitting layer of material having a relatively high dielectric constant and high acoustic impedance, and a receiving layer of material having a relatively low dielectric constant and low acoustic impedance are superimposed such that an optimum construction is provided which simultaneously creates optimum results for the instance of transmission and reception. The two layers are interconnected by means of hybrid techniques such that they mate in a laminar manner.
EP80101743A 1979-04-06 1980-04-01 Ultrasonic transducer Expired EP0017216B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80101743T ATE2293T1 (en) 1979-04-06 1980-04-01 ULTRASONIC TRANSDUCER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2914031A DE2914031C2 (en) 1979-04-06 1979-04-06 Ultrasonic transducer
DE2914031 1979-04-06

Publications (3)

Publication Number Publication Date
EP0017216A2 EP0017216A2 (en) 1980-10-15
EP0017216A3 true EP0017216A3 (en) 1980-11-12
EP0017216B1 EP0017216B1 (en) 1983-01-19

Family

ID=6067702

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80101743A Expired EP0017216B1 (en) 1979-04-06 1980-04-01 Ultrasonic transducer

Country Status (7)

Country Link
US (1) US4354132A (en)
EP (1) EP0017216B1 (en)
JP (1) JPS5856320B2 (en)
AT (1) ATE2293T1 (en)
AU (1) AU5715680A (en)
CA (1) CA1154861A (en)
DE (2) DE2914031C2 (en)

Families Citing this family (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0123446Y2 (en) * 1979-10-15 1989-07-19
FR2484179A1 (en) * 1980-06-10 1981-12-11 Cgr Ultrasonic Ultrasonic scanning and imaging appts. - has organic piezoelectric transducer detector, between sample and ceramic transducer transmitter, with matched acoustic impedance
FR2496919A1 (en) * 1980-12-22 1982-06-25 Labo Electronique Physique APPARATUS FOR EXAMINING MEDIA BY ULTRASONIC METHOD
JPS5885911A (en) * 1981-11-18 1983-05-23 Matsushita Electric Ind Co Ltd Equalizing method of waveform
DE3146949A1 (en) * 1981-11-26 1983-06-01 Siemens AG, 1000 Berlin und 8000 München Ultrasonic transducer
DE3204829A1 (en) * 1982-02-11 1983-08-18 Philips Patentverwaltung Gmbh, 2000 Hamburg ARRANGEMENT FOR EXAMINATION WITH ULTRASOUND
US4523471A (en) * 1982-09-28 1985-06-18 Biosound, Inc. Composite transducer structure
DE3309234A1 (en) * 1983-03-15 1984-09-20 Siemens AG, 1000 Berlin und 8000 München Ultrasonic transducer
GB2141902B (en) * 1983-05-23 1986-09-17 Raytheon Co Composite transducer
US4737939A (en) * 1983-05-23 1988-04-12 Raytheon Company Composite transducer
JPS60107736A (en) * 1983-11-16 1985-06-13 Ricoh Co Ltd Signal reading-out method in optical disk memory
US4544859A (en) * 1984-07-06 1985-10-01 The United States Of America As Represented By The United States Department Of Energy Non-bonded piezoelectric ultrasonic transducer
US4695988A (en) * 1984-09-12 1987-09-22 Ngk Spark Plug Co. Ltd. Underwater piezoelectric arrangement
DE3441563A1 (en) * 1984-11-14 1985-05-30 Michael Dipl.-Phys. 5600 Wuppertal Platte Combined ultrasound transducer consisting of ceramic and highly polymerised piezoelectric materials
US4654546A (en) * 1984-11-20 1987-03-31 Kari Kirjavainen Electromechanical film and procedure for manufacturing same
JPS60138457A (en) * 1984-11-30 1985-07-23 Hitachi Ltd Transmission and reception separating type ultrasonic probe
US4634917A (en) * 1984-12-26 1987-01-06 Battelle Memorial Institute Active multi-layer piezoelectric tactile sensor apparatus and method
US4620446A (en) * 1984-12-31 1986-11-04 Bruel & Kjaer Instruments, Inc. Acceleration responsive transducers
NL8501908A (en) * 1985-07-03 1987-02-02 Tno PROBE SENSOR.
JPS62234205A (en) * 1986-04-04 1987-10-14 Y Ii Data:Kk Reproducing system for digital magnetic recording information
US4841494A (en) * 1987-07-03 1989-06-20 Ngk Spark Plug Co., Ltd. Underwater piezoelectric arrangement
JPS6456038A (en) * 1987-08-25 1989-03-02 Yokogawa Medical Syst Ultrasonic probe
DE3839057A1 (en) * 1988-11-18 1990-05-23 Fraunhofer Ges Forschung Array-type probe
US4928264A (en) * 1989-06-30 1990-05-22 The United States Of America As Represented By The Secretary Of The Navy Noise-suppressing hydrophones
DE3926346A1 (en) * 1989-08-09 1991-02-14 Rieter Ag Maschf METHOD AND DEVICE FOR DETERMINING FIBER MATERIAL POLLUTED WITH FOREIGN BODIES
DE4139024C1 (en) * 1991-11-27 1993-04-15 Siemens Ag, 8000 Muenchen, De
US5446333A (en) * 1992-09-21 1995-08-29 Ngk Insulators, Ltd. Ultrasonic transducers
GB9225898D0 (en) * 1992-12-11 1993-02-03 Univ Strathclyde Ultrasonic transducer
US5389848A (en) * 1993-01-15 1995-02-14 General Electric Company Hybrid ultrasonic transducer
US5536910A (en) * 1993-08-09 1996-07-16 Northrop Grumman Sound, radio and radiation wave-absorbing, non-reflecting structure and method thereof
DE69416129T2 (en) * 1994-10-10 1999-07-01 Endress + Hauser GmbH + Co., 79689 Maulburg A method for operating an ultrasonic transducer and circuit arrangement for performing the method
US5479377A (en) * 1994-12-19 1995-12-26 Lum; Paul Membrane-supported electronics for a hydrophone
US5825117A (en) * 1996-03-26 1998-10-20 Hewlett-Packard Company Second harmonic imaging transducers
US5957851A (en) * 1996-06-10 1999-09-28 Acuson Corporation Extended bandwidth ultrasonic transducer
US5945770A (en) * 1997-08-20 1999-08-31 Acuson Corporation Multilayer ultrasound transducer and the method of manufacture thereof
US6416478B1 (en) 1998-05-05 2002-07-09 Acuson Corporation Extended bandwidth ultrasonic transducer and method
DE19901847A1 (en) * 1998-08-06 2000-02-10 Volkswagen Ag Method and device for detecting objects, in particular as a parking assistance device in a motor vehicle
US6409667B1 (en) 2000-02-23 2002-06-25 Acuson Corporation Medical diagnostic ultrasound transducer system and method for harmonic imaging
JP4904704B2 (en) * 2005-03-18 2012-03-28 アイシン精機株式会社 Load detection device
WO2007085022A2 (en) * 2006-01-20 2007-07-26 Akrion Technologies, Inc. System, apparatus and methods for processing substrates using acoustic energy
JP5347503B2 (en) * 2006-08-08 2013-11-20 コニカミノルタ株式会社 Ultrasonic probe and method of manufacturing ultrasonic probe
US20080166567A1 (en) * 2007-01-09 2008-07-10 Konica Minolta Medical & Graphic, Inc. Piezoelectric element, manufacture and ultrasonic probe
WO2009088307A1 (en) * 2008-01-09 2009-07-16 Angelsen Bjoern A J Multiple frequency band acoustic transducer arrays
JP5348451B2 (en) * 2008-02-13 2013-11-20 アイシン精機株式会社 Load detection device
US8817575B1 (en) * 2011-09-29 2014-08-26 The United States Of America As Represented By The Secretary Of The Navy Transducer for high pressure environment
US9239386B2 (en) 2011-10-05 2016-01-19 Infineon Technologies Ag Sonic sensors and packages
DE102013205157A1 (en) * 2013-03-22 2014-10-09 Robert Bosch Gmbh Sensor arrangement and method for detecting the surroundings of a vehicle

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB665451A (en) * 1943-04-17 1952-01-23 Technical Assets Inc Piezoelectric plastic material and method of making same
DE1116455B (en) * 1955-03-21 1961-11-02 Sperry Prod Inc Ultrasonic transducer for sending and receiving mechanical impulses into or out of an object

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2625035A (en) * 1945-12-22 1953-01-13 United Aircraft Corp Supersonic inspection device
US2875354A (en) * 1954-01-29 1959-02-24 Branson Instr Piezoelectric transducer
US4217684A (en) * 1979-04-16 1980-08-19 General Electric Company Fabrication of front surface matched ultrasonic transducer array

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB665451A (en) * 1943-04-17 1952-01-23 Technical Assets Inc Piezoelectric plastic material and method of making same
DE1116455B (en) * 1955-03-21 1961-11-02 Sperry Prod Inc Ultrasonic transducer for sending and receiving mechanical impulses into or out of an object

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ACOUSTICAL IMAGING, Vol. 8, Seiten 69-95 Proc. 8th International Symposium 29.5. - 2.6.1978 Florida (US) * Abstract, Seite 70, Zeile 34 - Seite 74, Zeile 20; Figuren 1,2 * *

Also Published As

Publication number Publication date
JPS55140392A (en) 1980-11-01
DE2914031B1 (en) 1980-05-14
AU5715680A (en) 1980-10-09
JPS5856320B2 (en) 1983-12-14
CA1154861A (en) 1983-10-04
DE2914031C2 (en) 1981-01-15
DE3061665D1 (en) 1983-02-24
US4354132A (en) 1982-10-12
EP0017216A2 (en) 1980-10-15
EP0017216B1 (en) 1983-01-19
ATE2293T1 (en) 1983-02-15

Similar Documents

Publication Publication Date Title
DE3061665D1 (en) Ultrasonic transducer
DE3478357D1 (en) Ultrasonic transducers having improved acoustic impedance matching layers
AU530471B2 (en) Ultrasonic transducer
AU572795B2 (en) Ultrasonic transducer
GB2063612A (en) Signal isolator
CA2257301A1 (en) Acoustic condition sensor employing a plurality of mutually non-orthogonal waves
AU6040980A (en) Energy transmission device for transmitting an explosive signal
AU544464B2 (en) Ultrasonic transducer
AU7383787A (en) Stereophonic baffle
DE3886154D1 (en) Ultrasound transducer with astigmatic transmission / reception characteristics.
AU539636B2 (en) Ultrasonic transducer
DE3067783D1 (en) Acoustic transducer
JPS57117375A (en) Horn for transmitting ultrasonic vibration
DE3068075D1 (en) Surface acoustic wave transducer
EP0211427A3 (en) Apparatus and method for sending out and receiving ultrasonic signals
CA1019056A (en) Ultrasonic wave transmitting system
AU7085381A (en) Ultrasonic transducer
KR950006434A (en) Window Ultrasonic Detection Device for External Surface Objects
CA966928A (en) High-power underwater electro-acoustic transducer for the infrasonic and low audio-frequency range
JPS5228371A (en) Acoustic wave searching system
AU6850881A (en) Ultrasonic apparatus with transducer array
JPS57157166A (en) Wave transmitter/receiver
JPS55142571A (en) Ultrasonic wave vibration transmitting body
DE3063803D1 (en) Ultrasonic transducer using ultra high frequency
JPS56128472A (en) Ultrasonic pickup device

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): AT CH DE FR GB NL

AK Designated contracting states

Designated state(s): AT CH DE FR GB NL

17P Request for examination filed

Effective date: 19801209

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): AT CH DE FR GB LI NL

REF Corresponds to:

Ref document number: 2293

Country of ref document: AT

Date of ref document: 19830215

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3061665

Country of ref document: DE

Date of ref document: 19830224

ET Fr: translation filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19840425

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19840626

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19840725

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19860328

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19870430

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19880401

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19880430

Ref country code: CH

Effective date: 19880430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19881101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19881118

GBPC Gb: european patent ceased through non-payment of renewal fee
NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19881229

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19890103

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT