Ultrasonic probe

Details Ultrasonic probe Ultrasonic probe

1998-03-11

2000-02-01

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310334, 310337, 310357, H01L 4108

Patent

active

060206756

ABSTRACT:
An ultrasonic probe provided with an ultrasonic wave-transmitting/receiving element comprising a 1-3 type or 2-2 type composite piezoelectric body exposing a piezoelectric monocrystal from at least one of the faces of the composite piezoelectric body, and an electrode mounted on at least one of the faces of the composite piezoelectric body, wherein the composite piezoelectric body comprises a piezoelectric monocrystal whose electromechanical coupling coefficient ratio k.sub.33 /k.sub.t is 1.6 or more, and a resin whose acoustic impedance Zp is 4.times.10.sup.6 kg/m.sup.2 s or less.

REFERENCES:
patent: 4613784 (1986-09-01), Haun et al.
patent: 4658176 (1987-04-01), Nakaya et al.
patent: 4683396 (1987-07-01), Takeuchi et al.
patent: 4728845 (1988-03-01), Haun et al.
patent: 5539965 (1996-07-01), Safari et al.

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