Device for the examination of objects by means of ultrasound ech

Details Device for the examination of objects by means of ultrasound ech Device for the examination of objects by means of ultrasound ech

1984-12-11

1986-03-18

Ciarlante, Anthony V.

Measuring and testing

Vibration

By mechanical waves

73602, G01N 2904

Patent

active

045760462

ABSTRACT:
A device for scanning objects by means of ultrasound echography, comprising at least one ultrasound transducer (10) which is connected to a transmitter stage (20) and to a receiver stage (30) which comprises an amplifier (40), a correction circuit (50) for the correction of the gain as a function of time, and a processing circuit (60) for the processing of the results of the echographic examination. The receiver and processing stage also comprise a circuit (70) which is connected to the output of the assembly formed by the amplifier and the gain correction circuit and which comprises means for determining the instantaneous frequency and the instantaneous energy of the echographic signal, means for weighting the instantaneous frequency with the instantaneous energy, and a diffraction correction circuit (80).

REFERENCES:
patent: 4016750 (1977-04-01), Green
patent: 4057049 (1977-11-01), Hill
patent: 4446737 (1984-05-01), Hottier
patent: 4520670 (1985-06-01), Salomonsson et al.

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