Ultrasonic transducer

Details Ultrasonic transducer Ultrasonic transducer

1986-01-17

1987-06-09

Jordan, Charles T.

Communications, electrical: acoustic wave systems and devices

Signal transducers

Underwater type

367157, 310326, 310334, H04R 1700

Patent

active

046725911

ABSTRACT:
An ultrasonic transducer comprises a support body, a piezoelectric layer of a material with a relatively high dielectric constant and high acoustic impedance, a first impedance matching layer and a second impedance matching layer (10). The first matching layer consists of silicon.

REFERENCES:
patent: 4101795 (1978-07-01), Fukumoto et al.
patent: 4427912 (1984-01-01), Bui et al.
Ultrasonics, "Research and Development", Nov. 1974, p. 235.
"Integrated Silicon-PV.sub.2 Acoustic Transducer Arrays," IEEE Transactions on Electron Devices, vol. ED-26, No. 12, 1976, pp. 1921-1931.
"The Design of Broad-Band Fluid-Loaded Ultrasonic Transducers," IEEE Transactions on Sonics and Ultrasonics, vol. SU 26, No. 6, 1979, pp. 385-393.
"Experimentitle Untersuchungen zum Aufbau von Ultraschallbreitband-wandlern," Biomedizinische Technik, vol. 27, No. 7-8, 1982, pp. 182-185.

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