Echo ultrasound examination device with multi-layer transducer

Details Echo ultrasound examination device with multi-layer transducer Echo ultrasound examination device with multi-layer transducer

1981-12-21

1984-05-08

Birmiel, Howard A.

Measuring and testing

Vibration

By mechanical waves

73620, 73628, 73641, G01N 2900

Patent

active

044467397

ABSTRACT:
The device comprises a transducer (1) which consists of two or more transducer layers (11) and (12) and which is connected to a transmitter circuit (2) which consists of a transmission network (21) and a control network (22) which comprises a first correction circuit (223) for the correction of the transfer function of the tranmission network (21). The transducer is furthermore connected to a receiver circuit (3) which consists of a receiver network (31) and an auxiliary network (32) which comprises a second correction circuit (323) for the correction of the transfer function of the receiver network (31). The correction circuits (223) and the (323) consist of an adder circuit with a number of inputs, each of which is connected to an output of a delay line (227i, 327i) whose input is connected to the output of an attenuator (226i, 326i).

REFERENCES:
patent: 4096756 (1978-06-01), Alphonse

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