Device for electronic focusing of ultrasonic waves

Details Device for electronic focusing of ultrasonic waves Device for electronic focusing of ultrasonic waves

1985-07-08

1988-10-18

Tarcza, Thomas H.

Communications, electrical: acoustic wave systems and devices

Echo systems

Distance or direction finding

367103, 367123, 73626, G01S 968

Patent

active

047792426

ABSTRACT:
A device for electronic focusing of ultrasonic waves in which the focusing means comprise a hierarchized assembly of elementary circuits each provided with a delay line connected in parallel with a direct line to a centralizing unit and in which the time-delay of the delay line in a circuit is a function of the relative time-delay which must exist between the two cells or the two circuits connected to said circuit. It is shown that, in the invention, a technological advance is achieved by thus minimizing the maximum time-delays to be established in the case of each delay line.

REFERENCES:
patent: 3560985 (1967-08-01), Lyon
patent: 3821740 (1974-06-01), Ehrlich
patent: 4330875 (1982-05-01), Tachita et al.

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