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

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.
Inventors:
 [1];  [1]
  1. (Ames, IA)
Issue Date:
OSTI Identifier:
869061
Assignee:
Iowa State University Research Foundation, Inc. (Ames, IA) AMES
Patent Number(s):
US 5269189
Application Number:
07/477,162
Contract Number:
W-7405-ENG-82
Research Org:
Ames Laboratory (AMES), Ames, IA; Iowa State University, Ames, IA (US)
Country of Publication:
United States
Language:
English
Subject:
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/