Title:
COMPOUND TYPE PIEZOELECTRIC TRANSDUCER ARRAY HAVING IMPROVEDACOUSTIC AND ELECTRIC IMPEDANCE
Document Type and Number:
Japanese Patent JPH08126094
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a transducer element improving electric impedance matching for an ultrasonic imaging system and acoustic impedance matching for a human body. SOLUTION: The transducer element 230 for a transducer array in a small external dimension, which has 2-2 or 1-3 composite structure and which is driven at a k31 lateral mode, is provided. The transducer element 230 is provided with plural thin piezo ceramic wafers 235 where electrodes 240 and 242 are provided on a confronted main face. The wafers 235 which are mutually detached are separated by a passive polymer layer in composite structure.
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Inventors:
TOURUKEBUERE AARU GURURAJIYA
Application Number:
JP21035695A
Publication Date:
May 17, 1996
Filing Date:
August 18, 1995
Export Citation:
Assignee:
HEWLETT PACKARD CO
International Classes:
G01N29/24; A61B8/00; B06B1/06; H01L41/08; H01L41/083; H04R17/00; H04R17/08; (IPC1-7): H04R17/00; A61B8/00; G01N29/24; H01L41/083; H01L41/08
Attorney, Agent or Firm:
Kaoru Furuya (2 outside)
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