EP0118837A3 - Ultrasonic transducer - Google Patents

Ultrasonic transducer Download PDF

Info

Publication number
EP0118837A3
EP0118837A3 EP84102147A EP84102147A EP0118837A3 EP 0118837 A3 EP0118837 A3 EP 0118837A3 EP 84102147 A EP84102147 A EP 84102147A EP 84102147 A EP84102147 A EP 84102147A EP 0118837 A3 EP0118837 A3 EP 0118837A3
Authority
EP
European Patent Office
Prior art keywords
layer
lambda
ultrasonic transducer
coupling layer
faces
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
EP84102147A
Other languages
German (de)
Other versions
EP0118837B1 (en
EP0118837A2 (en
Inventor
Reinhard Dr. Lerch
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 AT84102147T priority Critical patent/ATE35338T1/en
Publication of EP0118837A2 publication Critical patent/EP0118837A2/en
Publication of EP0118837A3 publication Critical patent/EP0118837A3/en
Application granted granted Critical
Publication of EP0118837B1 publication Critical patent/EP0118837B1/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G10K11/02Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators

Abstract

1. An ultrasonic transducer having a supporting body (2), a transmitting layer (4) of a material with a relatively high dielectric constant and high acoustic impedance and a first lambda/4 coupling layer (8) that faces the transmitting layer (4), and a second lambda/4 coupling layer that faces a load, characterised in that the second lambda/4 coupling layer also serves as a receiving layer (6) and that the first lambda/4 coupling layer (8) also serves as backing for the receiving layer (6).
EP84102147A 1983-03-15 1984-02-29 Ultrasonic transducer Expired EP0118837B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84102147T ATE35338T1 (en) 1983-03-15 1984-02-29 ULTRASONIC TRANSDUCER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3309236 1983-03-15
DE19833309236 DE3309236A1 (en) 1983-03-15 1983-03-15 ULTRASONIC CONVERTER

Publications (3)

Publication Number Publication Date
EP0118837A2 EP0118837A2 (en) 1984-09-19
EP0118837A3 true EP0118837A3 (en) 1985-05-15
EP0118837B1 EP0118837B1 (en) 1988-06-22

Family

ID=6193523

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84102147A Expired EP0118837B1 (en) 1983-03-15 1984-02-29 Ultrasonic transducer

Country Status (5)

Country Link
EP (1) EP0118837B1 (en)
JP (1) JPS59161800U (en)
AT (1) ATE35338T1 (en)
CA (1) CA1252558A (en)
DE (2) DE3309236A1 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3422115A1 (en) * 1984-06-14 1985-12-19 Siemens AG, 1000 Berlin und 8000 München ULTRASONIC TRANSDUCER SYSTEM
DE3430186A1 (en) * 1984-08-16 1986-02-27 Siemens AG, 1000 Berlin und 8000 München METHOD FOR PRODUCING A POROUS PIEZOELECTRIC MATERIAL AND MATERIAL PRODUCED BY THIS METHOD
DE3501808A1 (en) * 1985-01-21 1986-07-24 Siemens AG, 1000 Berlin und 8000 München ULTRASONIC CONVERTER
DE3665949D1 (en) * 1985-08-09 1989-11-02 Siemens Ag Ultrasonic generator
DE3839057A1 (en) * 1988-11-18 1990-05-23 Fraunhofer Ges Forschung Array-type probe
DE3932959C1 (en) * 1989-10-03 1991-04-11 Richard Wolf Gmbh, 7134 Knittlingen, De
US5263004A (en) * 1990-04-11 1993-11-16 Hewlett-Packard Company Acoustic image acquisition using an acoustic receiving array with variable time delay
EP0451517B1 (en) * 1990-04-11 1996-05-01 Hewlett-Packard Company Acoustic image acquisition
DE19714606A1 (en) * 1997-04-09 1998-10-15 Itt Mfg Enterprises Inc Ultra sound transmitter and receiver for motor vehicle distance warning system
EP1042653A1 (en) * 1997-12-23 2000-10-11 Simmonds Precision Products Inc. Ultrasonic liquid gauging system
DE102007027277A1 (en) * 2007-06-11 2008-12-18 Endress + Hauser Flowtec Ag ultrasonic sensor
JP5392090B2 (en) * 2007-11-21 2014-01-22 コニカミノルタ株式会社 Ultrasonic wave receiving vibrator, manufacturing method thereof, ultrasonic probe, and ultrasonic medical diagnostic imaging apparatus
US20110062824A1 (en) * 2009-09-15 2011-03-17 Fujifilm Corporation Ultrasonic transducer, ultrasonic probe and producing method
US11806749B2 (en) * 2021-10-28 2023-11-07 Baker Hughes, A Ge Company, Llc Ultrasonic transducer for flow measurement

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4016530A (en) * 1975-06-02 1977-04-05 Goll Jeffrey H Broadband electroacoustic converter
EP0021534A1 (en) * 1979-06-25 1981-01-07 Koninklijke Philips Electronics N.V. Acoustic transducer
US4427912A (en) * 1982-05-13 1984-01-24 Ausonics Pty. Ltd. Ultrasound transducer for enhancing signal reception in ultrasound equipment

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57141199A (en) * 1981-02-25 1982-09-01 Aloka Co Ltd Ultrasonic wave probe

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4016530A (en) * 1975-06-02 1977-04-05 Goll Jeffrey H Broadband electroacoustic converter
EP0021534A1 (en) * 1979-06-25 1981-01-07 Koninklijke Philips Electronics N.V. Acoustic transducer
US4427912A (en) * 1982-05-13 1984-01-24 Ausonics Pty. Ltd. Ultrasound transducer for enhancing signal reception in ultrasound equipment

Also Published As

Publication number Publication date
EP0118837B1 (en) 1988-06-22
JPH0453117Y2 (en) 1992-12-14
DE3472318D1 (en) 1988-07-28
DE3309236A1 (en) 1984-09-20
JPS59161800U (en) 1984-10-30
CA1252558A (en) 1989-04-11
ATE35338T1 (en) 1988-07-15
EP0118837A2 (en) 1984-09-19

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