Ultrasonic imaging apparatus

Details Ultrasonic imaging apparatus Ultrasonic imaging apparatus

1988-08-31

1990-09-18

Yarcza, Thomas H.

Communications, electrical: acoustic wave systems and devices

Acoustic image conversion

367137, 367903, G01S 1500

Patent

active

049583271

ABSTRACT:
An ultrasonic imaging apparatus includes an ultrasonic transducer for outputting an ultrasonic beam and converting the echo of the ultrasonic beam into an echo signal, a transmitter section for supplying a drive signal to the ultrasonic transducer, a receiver section for receiving the echo signal output from the ultrasonic transducer and converting the echo signal into an image signal, and a coaxial cable for coupling the ultrasonic transducer to the transmitter and receiver sections. The ultrasonic transducer is constituted by a two-layer ultrasonic transducer having an impedance smaller than an impedance of the coaxial cable.

REFERENCES:
patent: 4805458 (1989-02-01), Yoshie

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