EP0401027A3 - Akustischer Wandler - Google Patents

Akustischer Wandler Download PDF

Info

Publication number: EP0401027A3
Authority: EP; European Patent Office
Prior art keywords: acoustic transducer; transducer; transmission; constructing; amplitude
Prior art date: 1989-06-02
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 Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Withdrawn

Application number

EP19900305961

Other languages

English (en)

French (fr)

Other versions

EP0401027A2 (de

Inventor

Gordon Hayward

Victor James Murray

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.)

BAE Systems Electronics Ltd

Original Assignee

GEC Marconi Ltd

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.)

1989-06-02

Filing date

1990-05-31

Publication date

1992-01-08

1990-05-31 Application filed by GEC Marconi Ltd filed Critical GEC Marconi Ltd

1990-12-05 Publication of EP0401027A2 publication Critical patent/EP0401027A2/de

1992-01-08 Publication of EP0401027A3 publication Critical patent/EP0401027A3/de

Status Withdrawn legal-status Critical Current

Links

230000005540 biological transmission Effects 0.000 abstract 2
239000004593 Epoxy Substances 0.000 abstract 1
239000002131 composite material Substances 0.000 abstract 1

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
- B06B1/0607—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 multiple elements
- B06B1/0622—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 multiple elements on one surface
- B06B1/0629—Square array

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Transducers For Ultrasonic Waves (AREA)
Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)

EP19900305961 1989-06-02 1990-05-31 Akustischer Wandler Withdrawn EP0401027A3 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
GB8912782		1989-06-02
GB898912782A GB8912782D0 (en)	1989-06-02	1989-06-02	An acoustic transducer

Publications (2)

Publication Number	Publication Date
EP0401027A2 EP0401027A2 (de)	1990-12-05
EP0401027A3 true EP0401027A3 (de)	1992-01-08

Family

ID=10657817

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP19900305961 Withdrawn EP0401027A3 (de)	1989-06-02	1990-05-31	Akustischer Wandler

Country Status (4)

Country	Link
EP (1)	EP0401027A3 (de)
JP (1)	JPH03113999A (de)
CA (1)	CA2017382A1 (de)
GB (2)	GB8912782D0 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5371717A (en) *	1993-06-15	1994-12-06	Hewlett-Packard Company	Microgrooves for apodization and focussing of wideband clinical ultrasonic transducers
US5460181A (en) *	1994-10-06	1995-10-24	Hewlett Packard Co.	Ultrasonic transducer for three dimensional imaging
US5465725A (en) *	1993-06-15	1995-11-14	Hewlett Packard Company	Ultrasonic probe
US5434827A (en) *	1993-06-15	1995-07-18	Hewlett-Packard Company	Matching layer for front acoustic impedance matching of clinical ultrasonic tranducers
US5553035A (en) *	1993-06-15	1996-09-03	Hewlett-Packard Company	Method of forming integral transducer and impedance matching layers
US5423319A (en) *	1994-06-15	1995-06-13	Hewlett-Packard Company	Integrated impedance matching layer to acoustic boundary problems for clinical ultrasonic transducers
ATE211571T1 (de) *	1994-06-24	2002-01-15	Advanced Tech Lab	Diagnoseultraschallwandleranordnung mit elevationsfokus
US5546946A (en) *	1994-06-24	1996-08-20	Advanced Technology Laboratories, Inc.	Ultrasonic diagnostic transducer array with elevation focus
JP4413568B2 (ja) *	2003-09-19	2010-02-10	パナソニック株式会社	超音波探触子
DE102006015493B4 (de) *	2006-04-03	2010-12-23	Atlas Elektronik Gmbh	Elektroakustischer Wandler
IT1398262B1 (it) *	2010-02-23	2013-02-22	Esaote Spa	Sonda ad ultrasuoni.
FR2973550B1 (fr) *	2011-03-30	2015-12-04	Edap Tms France	Procede et appareil de generation d'ondes ultrasonores focalisees a modulation de surface
EP2796210B1 (de)	2013-04-25	2016-11-30	Canon Kabushiki Kaisha	Kapazitiver Wandler und Verfahren zu seiner Herstellung
EP2796209B1 (de) *	2013-04-25	2020-06-17	Canon Kabushiki Kaisha	Kapazitiver Wandler und Verfahren zu seiner Herstellung
JP6238556B2 (ja)	2013-04-25	2017-11-29	キヤノン株式会社	被検体情報取得装置およびその制御方法、ならびに探触子

Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2114857A (en) *	1982-02-16	1983-08-24	Gen Electric	Ultrasonic transducer shading
DE3334090A1 (de) *	1982-09-22	1984-03-22	North American Philips Corp., 10017 New York, N.Y.	Apodisierter ultraschallwandler
EP0137529A2 (de) *	1983-08-15	1985-04-17	Koninklijke Philips Electronics N.V.	Verfahren zur Herstellung elektrischer Kompositwandler
GB2190818A (en) *	1986-05-07	1987-11-25	Brueel & Kjaer As	An ultrasonic transducer for providing a desired sound field

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2006434B (en) *	1977-10-20	1982-03-03	Rca Corp	Switchable depth of focus pulse-echo ultra-sonic imaging display system
GB2095951A (en) *	1981-02-19	1982-10-06	Nat Res Dev	Transducers of improved resolution and systems for the transmission and reception of radiation

1989
- 1989-06-02 GB GB898912782A patent/GB8912782D0/en active Pending
1990
- 1990-05-23 CA CA 2017382 patent/CA2017382A1/en not_active Abandoned
- 1990-05-31 GB GB9012171A patent/GB2232323A/en not_active Withdrawn
- 1990-05-31 EP EP19900305961 patent/EP0401027A3/de not_active Withdrawn
- 1990-06-01 JP JP14426390A patent/JPH03113999A/ja active Pending

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2114857A (en) *	1982-02-16	1983-08-24	Gen Electric	Ultrasonic transducer shading
DE3334090A1 (de) *	1982-09-22	1984-03-22	North American Philips Corp., 10017 New York, N.Y.	Apodisierter ultraschallwandler
EP0137529A2 (de) *	1983-08-15	1985-04-17	Koninklijke Philips Electronics N.V.	Verfahren zur Herstellung elektrischer Kompositwandler
GB2190818A (en) *	1986-05-07	1987-11-25	Brueel & Kjaer As	An ultrasonic transducer for providing a desired sound field

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ultrasonics international 87 conf. proc., london6-9 july 1987, p. 426-431, D. J. Mehrl et al. : "Design and evaluation of apodized piezo__ electric transducers" *

Also Published As

Publication number	Publication date
JPH03113999A (ja)	1991-05-15
CA2017382A1 (en)	1990-12-02
GB2232323A (en)	1990-12-05
GB9012171D0 (en)	1990-07-18
EP0401027A2 (de)	1990-12-05
GB8912782D0 (en)	1989-07-19

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Legal Events

Date	Code	Title	Description
1990-10-20	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
1990-12-05	AK	Designated contracting states	Kind code of ref document: A2 Designated state(s): DE ES FR IT SE
1991-11-15	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1992-01-08	AK	Designated contracting states	Kind code of ref document: A3 Designated state(s): DE ES FR IT SE
1993-01-04	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN
1993-02-24	18D	Application deemed to be withdrawn	Effective date: 19920709