Conical transducer ultrasonic scanning

Details Conical transducer ultrasonic scanning Conical transducer ultrasonic scanning

1980-04-23

1982-04-20

Ciarlante, Anthony V.

Measuring and testing

Vibration

By mechanical waves

310334, G01N 2904

Patent

active

043252583

ABSTRACT:
An ultrasonic image of improved resolution is obtained by utilizing separate transducers respectively for transmission and reception of ultrasonic pulses employed for imaging a subject, one transducer being a conical or simulated conical transducer having a line focus along the cone axis and the other transducer being aimed along the line focus of the first transducer. An area to be imaged may be scanned by moving the transducers as a unit about the subject portion to be examined.

REFERENCES:
patent: 2893239 (1959-07-01), Renaut
patent: 3712119 (1973-01-01), Cross et al.
patent: 4103677 (1978-08-01), Lansiart et al.
Burckhardt, C. B., et al., "Ultrasound Axicon: A Device for Focusing over Large Depth," J. of Acoustical Society of Amer., vol. 54, #6, 1973, pp. 1628-1630.
Dietz, O. R. et al., "Expanding-Aperture Annular Array," Ultrasonic Imaging, vol. 1, #1, 1979, pp. 56-75.

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