Measuring and testing – Vibration – By mechanical waves
Patent
1990-02-08
1993-12-14
Arana, Louis
Measuring and testing
Vibration
By mechanical waves
73642, G01N 2900
Patent
active
052691896
ABSTRACT:
The invention includes a means and method for transmitting and receiving broadband, unipolar, ultrasonic pulses for ultrasonic inspection. The method comprises generating a generally unipolar ultrasonic stress pulse from a low impedance voltage pulse transmitter along a low impedance electrical pathway to an ultrasonic transducer, and receiving the reflected echo of the pulse by the transducer, converting it to a voltage signal, and passing it through a high impedance electrical pathway to an output. The means utilizes electrical components according to the method. The means and method allow a single transducer to be used in a pulse/echo mode, and facilitates alternatingly transmitting and receiving the broadband, unipolar, ultrasonic pulses.
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Hsu David K.
Thompson Donald O.
Arana Louis
Iowa State University & Research Foundation, Inc.
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