EP0796669A3 - Ultrasonic transducer - Google Patents
Ultrasonic transducer Download PDFInfo
- 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- Withdrawn
Links
- 238000004519 manufacturing process Methods 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
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. 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.
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10018355A1 (en) * | 2000-04-13 | 2001-12-20 | Siemens Ag | Ultrasound transducer; has piezoelectric body with several transducer elements and strip conductor foil on flat side with conductive track pattern to determine arrangement of transducer elements |
US11448621B2 (en) * | 2020-03-30 | 2022-09-20 | Olympus NDT Canada Inc. | Ultrasound probe with row-column addressed array |
Citations (3)
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 |
-
1997
- 1997-03-10 EP EP97103948A patent/EP0796669A3/en not_active Withdrawn
Patent Citations (3)
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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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 |
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AK | Designated contracting states |
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PUAL | Search report despatched |
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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 |
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18D | Application deemed to be withdrawn |
Effective date: 19981030 |