Ultrasonic apparatus, system and method

Details Ultrasonic apparatus, system and method Ultrasonic apparatus, system and method

1983-09-15

1989-12-12

Tarcza, Thomas H.

Communications, electrical: acoustic wave systems and devices

Signal transducers

367105, H04R 2300

Patent

active

048872466

ABSTRACT:
Ultrasonic apparatus for use in detecting an object having a transducer. The transducer has an array of at least one element coupled directly into air. The apparatus also includes a transmitter which may be multi-channel, a receiver which may be multi-channel, a transmit receive switch, and a computer for causing operation of said transmit receive switch to cause sequential supplying of pulses of energy from the transmitter to the element or elements of the transducer and for receiving energy received by the transducer. The element or elements of the transducer are provided with a roughened surface to produce high frequency ultrasonic energy.

REFERENCES:
patent: 3086195 (1963-04-01), Halliday
patent: 3325779 (1967-06-01), Supernaw et al.
patent: 3389372 (1968-06-01), Halliday et al.
patent: 4058003 (1977-11-01), Macovski
patent: 4081626 (1978-03-01), Muggli et al.
patent: 4104610 (1978-08-01), Inoue et al.
patent: 4440482 (1984-04-01), Shenk
Electronic Product Design, vol. 2, pp. 33-35, Aug. 1981.
Kuhl et al, Acoustica, vol. 4, No. 5, 1954, pp. 519-532.

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