Ultrasonic probe

Details Ultrasonic probe Ultrasonic probe

1981-08-24

1983-09-27

Shoop, William M.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310800, 310322, H04R 1700, H01L 4118

Patent

active

044069677

ABSTRACT:
The ultrasonic probe of this invention contains a uniaxially elongated polymer piezoelectric element in which the piezoelectric element provided at the both sides with a thin layer electrode is disposed such that at least one of the electrodes is divided into long and small electrode portions to form a unit element and the unit elements are arranged in a direction at an angle in the scope ranging from 45.degree. to 135.degree. with respect to the direction in which the piezoelectric material is uniaxially elongated.
The ultrasonic probe having the aforesaid structure is constructed such that each of the unit elements undergoes no adverse influence from the adjacent unit elements so that it permits a high resolving power without any noise acoustic waves generated.

REFERENCES:
patent: 3832580 (1974-08-01), Yamamuro et al.
patent: 3903733 (1975-09-01), Murayama et al.
patent: 3946149 (1976-03-01), White
patent: 4038615 (1977-07-01), Ishiyama et al.
patent: 4137475 (1979-01-01), Yoshida et al.
F. Mattiocco, "PVF.sub.2 Transducers for Rayleigh Waves", Electronics Letters, Mar. 27, 1980, vol. 16, No. 7, pp. 250-251.

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