| (19) |
 |
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(11) |
EP 0 142 215 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
11.03.1987 Bulletin 1987/11 |
| (43) |
Date of publication A2: |
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22.05.1985 Bulletin 1985/21 |
| (22) |
Date of filing: 25.05.1984 |
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| (84) |
Designated Contracting States: |
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AT BE CH DE FR GB IT LI LU NL SE |
| (30) |
Priority: |
26.05.1983 US 498364
|
| (71) |
Applicant: Advanced Technology Laboratories, Inc. |
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() |
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| (72) |
Inventor: |
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- Keilman, George Woodrow
()
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| |
|
| (54) |
Ultrasound transducer with improved vibrational modes |
(57) The transducer of the present invention is diced into subelements which have a height-to-width
ratio which determines the modality of their vibration. The subelements are then electrically
connected to provide a transducer having the desired electrical configuration, i.e.,
an annular array transducer. Using the present invention, the electro-acoustic characteristics
of the transducer are not determinitive of the vibrational characteristics of the
individual subelements.