Measuring and testing – Vibration – By mechanical waves
Patent
1979-12-12
1982-03-02
Michell, Robert W.
Measuring and testing
Vibration
By mechanical waves
128660, G01N 2900
Patent
active
043173705
ABSTRACT:
The disclosure is directed to an apparatus for scanning an object with a beam of ultrasound energy and for formulating image-representative signals from the ultrasound reflected from the object. An ultrasound reflector is disposed in the path of the ultrasound energy, the reflector typically being disposed in a suitable fluid, for example water. The reflector is mechanically driven and means are provided for sensing the relative angular position of the reflector and for generating a first clock signal as a function of the sensed position. Means, responsive to the ultrasound reflected from the object are provided for generating echo-representative electrical signals. These echo-representative electrical signals are stored at a line rate which depends upon the first clock signal. Finally, means are provided for reading out the stored signals at a line rate which depends upon a second clock signal, and for displaying the read out signals to obtain an image of the object, the line rate of the display being synchronized with the second clock rate.
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Jaworski Francis J.
Michell Robert W.
New York Institute of Technology
Novack Martin
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