EP0906791A3 - Method for the manufacture of a composite ultrasound transducer - Google Patents

Method for the manufacture of a composite ultrasound transducer Download PDF

Info

Publication number
EP0906791A3
EP0906791A3 EP98117312A EP98117312A EP0906791A3 EP 0906791 A3 EP0906791 A3 EP 0906791A3 EP 98117312 A EP98117312 A EP 98117312A EP 98117312 A EP98117312 A EP 98117312A EP 0906791 A3 EP0906791 A3 EP 0906791A3
Authority
EP
European Patent Office
Prior art keywords
mold
plastic
ultrasound transducer
manufacture
composite ultrasound
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.)
Withdrawn
Application number
EP98117312A
Other languages
German (de)
French (fr)
Other versions
EP0906791A2 (en
Inventor
Axel Brenner
Kurt Handschuh
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.)
Ceramtec GmbH
Atlas Elektronik GmbH
Original Assignee
Ceramtec GmbH
STN Atlas Elektronik GmbH
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 Ceramtec GmbH, STN Atlas Elektronik GmbH filed Critical Ceramtec GmbH
Publication of EP0906791A2 publication Critical patent/EP0906791A2/en
Publication of EP0906791A3 publication Critical patent/EP0906791A3/en
Withdrawn legal-status Critical Current

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
    • B06B1/0607—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
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/42—Piezoelectric device making

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)

Abstract

Es wird ein Verfahren zur Herstellung eines Verbund-Ultraschallwandlers mit in Kunststoff eingelagerten, im wesentlichen in Längsrichtung abstrahlenden Wandlerelementen aus piezoelektrischer Keramik vorgestellt, bei dem zur Senkung der Gestehungskosten in aufeinanderfolgenden Verfahrensschritten mehrere flache Keramikkörper (20) mit einer Vielzahl von parallelen, schlitzartigen und allseits geschlossenen Durchbrüchen gepreßt, in eine Gießform (25)eingesetzt und die Gießform (25) mit Kunststoff ausgegossen wird. Nach Aushärten wird der so entstandene Gußblock (28) entformt, und am entformten Gußblock (28) die auf voneinander abgekehrten, quer zur Längsrichtung der Durchbrüche (21) sich erstreckenden Seiten das Keramikmaterial (26) so weit entfernt, daß das in den Durchbrüchen (21) eingebettete Kunststoffmaterial (26) stirnseitig freiliegt.

Figure 00000001
The invention relates to a method for producing a composite ultrasound transducer with transducer elements made of piezoelectric ceramics that are embedded in plastic and emit essentially in the longitudinal direction closed openings pressed, inserted into a mold (25) and the mold (25) is poured out with plastic. After hardening, the casting block (28) formed in this way is removed from the mold, and on the removed casting block (28) the ceramic material (26) is removed so far from the sides facing away from one another that extend transversely to the longitudinal direction of the openings (21) that the ceramic material (26) 21) embedded plastic material (26) is exposed on the end face.
Figure 00000001
EP98117312A 1997-10-04 1998-09-12 Method for the manufacture of a composite ultrasound transducer Withdrawn EP0906791A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19743859A DE19743859C2 (en) 1997-10-04 1997-10-04 Method of manufacturing a composite ultrasonic transducer
DE19743859 1997-10-04

Publications (2)

Publication Number Publication Date
EP0906791A2 EP0906791A2 (en) 1999-04-07
EP0906791A3 true EP0906791A3 (en) 2001-07-18

Family

ID=7844573

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98117312A Withdrawn EP0906791A3 (en) 1997-10-04 1998-09-12 Method for the manufacture of a composite ultrasound transducer

Country Status (5)

Country Link
US (1) US6301761B1 (en)
EP (1) EP0906791A3 (en)
DE (1) DE19743859C2 (en)
NO (1) NO320761B1 (en)
ZA (1) ZA988973B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19954020C2 (en) * 1999-11-10 2002-02-28 Fraunhofer Ges Forschung Method of manufacturing a piezoelectric transducer
JP3551141B2 (en) * 2000-09-28 2004-08-04 松下電器産業株式会社 Method of manufacturing piezoelectric body
DE10052636B4 (en) * 2000-10-24 2004-07-08 Atlas Elektronik Gmbh Method of manufacturing an ultrasonic transducer
DE10106057C2 (en) * 2001-02-09 2003-08-21 Eads Deutschland Gmbh Piezoceramic plate and method of making the same
US6773197B2 (en) 2002-10-09 2004-08-10 Trw Inc. Ball joint
DE102004016140A1 (en) * 2004-04-01 2005-10-27 Smart Material Gmbh Process and device for the production of macro fiber composites

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4514247A (en) * 1983-08-15 1985-04-30 North American Philips Corporation Method for fabricating composite transducers
JPH01166699A (en) * 1987-12-22 1989-06-30 Nippon Dempa Kogyo Co Ltd Manufacture of composite piezoelectric plate
US5539965A (en) * 1994-06-22 1996-07-30 Rutgers, The University Of New Jersey Method for making piezoelectric composites

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2752662A (en) * 1954-12-27 1956-07-03 Erie Resistor Corp Method of making thin flat electroded ceramic elements
DE59008863D1 (en) * 1990-06-21 1995-05-11 Siemens Ag Compound ultrasonic transducer and method for producing a structured component made of piezoelectric ceramic.
WO1995003632A1 (en) * 1993-07-19 1995-02-02 Fiber Materials, Inc. Method of fabricating a piezocomposite material
US5592730A (en) * 1994-07-29 1997-01-14 Hewlett-Packard Company Method for fabricating a Z-axis conductive backing layer for acoustic transducers using etched leadframes
US5691960A (en) * 1995-08-02 1997-11-25 Materials Systems, Inc. Conformal composite acoustic transducer panel and method of fabrication thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4514247A (en) * 1983-08-15 1985-04-30 North American Philips Corporation Method for fabricating composite transducers
JPH01166699A (en) * 1987-12-22 1989-06-30 Nippon Dempa Kogyo Co Ltd Manufacture of composite piezoelectric plate
US5539965A (en) * 1994-06-22 1996-07-30 Rutgers, The University Of New Jersey Method for making piezoelectric composites

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 013, no. 439 (E - 827) 3 October 1989 (1989-10-03) *

Also Published As

Publication number Publication date
DE19743859A1 (en) 1999-04-15
DE19743859C2 (en) 2000-11-16
NO984304L (en) 1999-04-06
NO984304D0 (en) 1998-09-17
EP0906791A2 (en) 1999-04-07
US6301761B1 (en) 2001-10-16
NO320761B1 (en) 2006-01-23
ZA988973B (en) 1999-04-12

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