Backing material for the ultrasonic transducer

Details Backing material for the ultrasonic transducer Backing material for the ultrasonic transducer

1987-12-22

1989-01-24

Terapane, John F.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310334, 310336, 73642, 75233, 252515, H01L 4118, H01B 122, H04R 1700

Patent

active

048003166

ABSTRACT:
The invention is a backing material for an ultrasonic transducer. The backing material comprises a composite of tungsten powder, cerium oxide powder in an amount of 1.0 to 4.5% by weight tungsten, and an epoxy in a weight proportion to powder of from 4:1 to 50:1.

REFERENCES:
patent: 4076611 (1978-02-01), Gray
patent: 4083811 (1978-04-01), Bachmann et al.
patent: 4382201 (1983-05-01), Trzaskos
Sidney Lees et al., "Acoustic Properties of Tungsten-Vinyl Composites" IEEE Transactions on Sonics and Ultrasonics, vol. SU-20, No. 1, Jan. '73, pp. 1 and 2
Jeffrey H. Goll., "The Design of Broad-Band Fluid-Loaded Ultrasonic Transducers", IEEE Transactions on Sonics and Ultrasonics, vol. SU-26, No. 6,11/79, pp. 385-393.
K. F. Bainton et al., "Some Factors which Affect the Performance of Ultrasonic Transducers", British Journal of NDT, Jan. 1980, pp. 15-20.
J. Fleming Dias, "Construction and Performance of an Experimental Phased Array Acoustic Imaging Transducer", Ultrasonic Imaging 3, 1981, pp. 352-368.
Grant, "Hackh's Chemical Dictionary" 1969, p. 57.

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