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Means and method for ultrasonic measurement of material properties
Iowa State University Patents
  • R. Bruce Thompson, Iowa State University
  • Samuel J. Wormley, Iowa State University
  • George A. Alers
Document Type
Patent
Publication Date
10-13-1992
Abstract

The system for field measurement of texture, stress and related material properties such as formability parameters using ultrasonic velocity measurements through crystalline plate or sheet. Electromagnetic acoustic transducers are utilized to generate, transmit, and receive ultrasonic bursts through the plate at different angular orientations with respect to the plane of the plate. Two of the transducers are driven in series when generating the ultrasonic bursts. Time measurements between transmission and reception of the bursts are precisely derived and converted into velocities. Information regarding stress, texture, and other related material properties such as formability parameters can be derived from these velocity measurements. The system is adjustable to be used for both ferrous and nonferrous crystalline plate. Alteration of the types of ultrasonic waves utilized, and the methods of generating the waves allows different properties such as texture and stress to be derived.

Patent Number
US 5,154,081
Assignee
Iowa State University Research Foundation, Inc.
Application Number
07/647,484
Date Filed
1-28-1991
Language
en
Date Available
May 21, 2013
File Format
application/pdf
Citation Information
R. Bruce Thompson, Samuel J. Wormley and George A. Alers. "Means and method for ultrasonic measurement of material properties" (1992)
Available at: http://works.bepress.com/rbruce_thompson/49/