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:5444241

Thompson, D O; Hsu, D K

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. 25 figures.

• DOE Contract Number: W-7405-ENG-82
• Assignee: Iowa State Univ. Research Foundation, Inc., Ames, IA (United States)
• Patent Number(s): A; US 5269189
• OSTI ID: 5444241
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420500* -- Engineering-- Materials Testing
ACOUSTIC TESTING
DESIGN
ELECTRICAL EQUIPMENT
EQUIPMENT
MATERIALS TESTING
NONDESTRUCTIVE TESTING
PULSES
SOUND WAVES
TESTING
TRANSDUCERS
ULTRASONIC TESTING
ULTRASONIC WAVES