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EP0796669A3 - Ultrasonic transducer - Google Patents

Ultrasonic transducer Download PDF

Info

Publication number
EP0796669A3
EP0796669A3 EP97103948A EP97103948A EP0796669A3 EP 0796669 A3 EP0796669 A3 EP 0796669A3 EP 97103948 A EP97103948 A EP 97103948A EP 97103948 A EP97103948 A EP 97103948A EP 0796669 A3 EP0796669 A3 EP 0796669A3
Authority
EP
European Patent Office
Prior art keywords
electrodes
ultrasonic transducer
flat side
another
electrically separated
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Withdrawn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
EP97103948A
Other languages
German (de)
French (fr)
Other versions
EP0796669A2 (en
Inventor
Joachim Dipl.-Ing. Ritter
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
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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, Siemens Corp filed Critical Siemens AG
Publication of EP0796669A2 publication Critical patent/EP0796669A2/en
Publication of EP0796669A3 publication Critical patent/EP0796669A3/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Withdrawn legal-status Critical Current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
    • 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)

Abstract

Der Ultraschallwandler enthält einen piezoelektrischen Körper (2), der an einer ersten Flachseite (4) mit voneinander elektrisch getrennten ersten Elektroden (8) versehen ist. Gemäß der Erfindung sind diesen ersten Elektroden (8) auf der von der ersten Flachseite (4) abgewandten zweiten Flachseite (6) voneinander und von den ersten Elektroden (8) elektrisch getrennte zweite Elektroden (10) derart zugeordnet, daß sich die ersten Elektroden (8) und die zweiten Elektroden (10) in einer Draufsicht auf eine der Flachseiten gesehen jeweils in wenigstens einem Teilbereich überdecken. Ein Ultraschallwandler mit diesen Merkmalen ist vielseitig einsetzbar und kann einfach hergestellt werden.

Figure 00000001
The ultrasonic transducer contains a piezoelectric body (2) which is provided on a first flat side (4) with first electrodes (8) which are electrically separated from one another. According to the invention, these first electrodes (8) on the second flat side (6) facing away from the first flat side (4) are assigned to one another and second electrodes (10) which are electrically separated from the first electrodes (8) in such a way that the first electrodes ( 8) and cover the second electrodes (10) in a plan view of one of the flat sides, in each case in at least one partial area. An ultrasonic transducer with these features can be used in a variety of ways and is easy to manufacture.
Figure 00000001
EP97103948A 1996-03-19 1997-03-10 Ultrasonic transducer Withdrawn EP0796669A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19610803 1996-03-19
DE19610803 1996-03-19

Publications (2)

Publication Number Publication Date
EP0796669A2 EP0796669A2 (en) 1997-09-24
EP0796669A3 true EP0796669A3 (en) 1998-04-29

Family

ID=7788770

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97103948A Withdrawn EP0796669A3 (en) 1996-03-19 1997-03-10 Ultrasonic transducer

Country Status (1)

Country Link
EP (1) EP0796669A3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10018355A1 (en) * 2000-04-13 2001-12-20 Siemens Ag Ultrasonic transducer and method of making an ultrasonic transducer
US11408860B2 (en) 2020-03-30 2022-08-09 Olympus NDT Canada Inc. Ultrasound probe with row-column addressed array

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4550606A (en) * 1982-09-28 1985-11-05 Cornell Research Foundation, Inc. Ultrasonic transducer array with controlled excitation pattern
EP0196839A2 (en) * 1985-03-23 1986-10-08 Cogent Limited Piezoelectric transducer and components therefor
US4801835A (en) * 1986-10-06 1989-01-31 Hitachi Medical Corp. Ultrasonic probe using piezoelectric composite material

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4550606A (en) * 1982-09-28 1985-11-05 Cornell Research Foundation, Inc. Ultrasonic transducer array with controlled excitation pattern
EP0196839A2 (en) * 1985-03-23 1986-10-08 Cogent Limited Piezoelectric transducer and components therefor
US4801835A (en) * 1986-10-06 1989-01-31 Hitachi Medical Corp. Ultrasonic probe using piezoelectric composite material

Also Published As

Publication number Publication date
EP0796669A2 (en) 1997-09-24

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