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

Patent · Tue Dec 14 00:00:00 EST 1993

OSTI ID:869061

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

---

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 Univ., Ames, IA (United States)
• 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

Related Subjects

method
means
transmitting
receiving
broad-band
unipolar
ultrasonic
pulses
inspection
broadband
comprises
generating
stress
pulse
impedance
voltage
transmitter
electrical
pathway
transducer
reflected
echo
converting
signal
passing
output
utilizes
components
according
allow
single
mode
facilitates
alternatingly
electrical pathway
ultrasonic pulses
ultrasonic pulse
electrical components
voltage pulse
ultrasonic inspection
voltage signal
ultrasonic transducer
method comprises
method comprise
electrical path
utilizes electrical
utilizes electric
method allow
electrical component
/73/