EP0369127A3 - Verbund-Ultraschall-Sonarwandler - Google Patents
Verbund-Ultraschall-Sonarwandler Download PDFInfo
- Publication number
- EP0369127A3 EP0369127A3 EP19890116379 EP89116379A EP0369127A3 EP 0369127 A3 EP0369127 A3 EP 0369127A3 EP 19890116379 EP19890116379 EP 19890116379 EP 89116379 A EP89116379 A EP 89116379A EP 0369127 A3 EP0369127 A3 EP 0369127A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- thickness
- mounting surface
- ultrasonar
- compound
- transducer
- 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- Withdrawn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
- 150000001875 compounds Chemical class 0.000 title 1
- 239000000463 material Substances 0.000 abstract 2
- 238000002604 ultrasonography Methods 0.000 abstract 2
- 230000006978 adaptation Effects 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
- B06B1/0644—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 a single piezoelectric element
- B06B1/0662—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 a single piezoelectric element with an electrode on the sensitive surface
- B06B1/067—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 a single piezoelectric element with an electrode on the sensitive surface which is used as, or combined with, an impedance matching layer
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transducers For Ultrasonic Waves (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3833144 | 1988-09-29 | ||
DE3833144 | 1988-09-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0369127A2 EP0369127A2 (de) | 1990-05-23 |
EP0369127A3 true EP0369127A3 (de) | 1991-11-06 |
Family
ID=6364019
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19890116379 Withdrawn EP0369127A3 (de) | 1988-09-29 | 1989-09-05 | Verbund-Ultraschall-Sonarwandler |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0369127A3 (de) |
JP (1) | JPH02122290A (de) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2052917A (en) * | 1979-06-28 | 1981-01-28 | Hewlett Packard Co | Acoustic imaging transducers |
FR2503517A1 (fr) * | 1981-04-06 | 1982-10-08 | Thomson Csf | Transducteur piezo-electrique |
EP0142178A1 (de) * | 1983-08-31 | 1985-05-22 | Laboratoires D'electronique Philips | Ultraschall-Wandler |
-
1989
- 1989-09-05 EP EP19890116379 patent/EP0369127A3/de not_active Withdrawn
- 1989-09-27 JP JP25371989A patent/JPH02122290A/ja active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2052917A (en) * | 1979-06-28 | 1981-01-28 | Hewlett Packard Co | Acoustic imaging transducers |
FR2503517A1 (fr) * | 1981-04-06 | 1982-10-08 | Thomson Csf | Transducteur piezo-electrique |
EP0142178A1 (de) * | 1983-08-31 | 1985-05-22 | Laboratoires D'electronique Philips | Ultraschall-Wandler |
Also Published As
Publication number | Publication date |
---|---|
EP0369127A2 (de) | 1990-05-23 |
JPH02122290A (ja) | 1990-05-09 |
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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 |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT CH DE FR GB IT LI |
|
17P | Request for examination filed |
Effective date: 19901205 |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT CH DE FR GB IT LI |
|
17Q | First examination report despatched |
Effective date: 19930915 |
|
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 |
|
18D | Application deemed to be withdrawn |
Effective date: 19950124 |