Method and means of transmitting and receiving broad-band unipolar, ultrasonic pulses for ultrasonic inspection

Patent · Tue Dec 14 04:00:00 EST 1993

OSTI ID:869061

Thompson, Donald O ^[1]; Hsu, David K ^[1]

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1. Ames, IA

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.

• Research Organization: Ames Laboratory (AMES), Ames, IA; Iowa State University, Ames, IA (US)
• DOE Contract Number: W-7405-ENG-82
• Assignee: Iowa State University Research Foundation, Inc. (Ames, IA)
• Patent Number(s): US 5269189
• Application Number: 07/477,162
• OSTI ID: 869061
• Country of Publication: United States
• Language: English

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