System and method to provide material property measurement using re-entrant ultrasound

Roberts, Ronald Allen

Title: System and method to provide material property measurement using re-entrant ultrasound

Patent · Tue Aug 05 00:00:00 EDT 2003

OSTI ID:1531459

Roberts, Ronald Allen

Presented is a system and method for performing highly sensitive measurement of ultrasonic attenuation in small material volumes. The invention allows the mapping of the variations on the surface of a specimen with a high spatial resolution. An ultrasonic transmitter and receiver transmit an ultrasonic signal through a material volume, receive the transmitted pulse, and then re-transmit the received pulse again through the same material volume. The system establishes an oscillating circuit by establishing a positive feedback loop by connecting the transmitter to the receiver with appropriate gain. This oscillating circuit contains the propagation through the material as a component in the signal path. Such a system and method may be employed to aid in the recovery of stamped or engraved serial numbers that have been removed through machining. Such recovery is useful for law enforcement, particularly in tracing weapons and auto parts that have been involved in a crime.

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Research Organization:: Iowa State Univ., Ames, IA (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: W-7405-ENG-82

Assignee:: Iowa State University Research Foundation, Inc. (Ames, IA)

Patent Number(s):: 6,601,451

Application Number:: 09/885,506

OSTI ID:: 1531459

Resource Relation:: Patent File Date: 2001-06-20

Country of Publication:: United States

Language:: English

References (14)

Seismic Method of Prospecting https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/3198281 US Patent Document 3,198,281	patent	August 1965
Ultrasonic Measuring Apparatus Davey, Cyril Norman https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/3394585 US Patent Document 3,394,585	patent	July 1968
Method and Apparatus for Measuring Thickness by Exciting and Measuring Free Resonance Frequency Kaule, Walter https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/3741334 US Patent Document 3,741,434	patent	June 1973
Ultrasonic measuring apparatus for determining wall thickness of a workpiece Bickel, Wolf; Cichos, Dietmar; Eichret, Ulrich https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/3914987 US Patent Document 3,914,987	patent	October 1975
Method and apparatus for increasing the speed of ultrasonic pulse-echo testing Renzel, Peter https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4098131 US Patent Document 4,098,131	patent	July 1978
Surface acoustic wave sensors Sinha, Bikash K.; Gouilloud, Michel https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4534223 US Patent Document 4,534,223	patent	August 1985
Marginal oscillator for acoustic monitoring of curing of plastics Thomas, Lewis https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4758803 US Patent Document 4,758,803	patent	July 1988
Apparatus and method for early detection and identification of dilute chemical vapors Pyke, Stephen C.; Hager, Harold E. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4895017 US Patent Document 4,895,017	patent	January 1990
Dual output acoustic wave sensor for molecular identification Frye, Gregory C.; Martin, Stephen J. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5076094 US Patent Document 5,076,094	patent	December 1991
Constant frequency pulsed phase-locked loop measuring device Yost, William T.; Kushnick, Peter W.; Cantrell, John H. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5214955 US Patent Document 5,214,955	patent	June 1993
Image processing system for producing an attenuation map of a scanned image Walach, Eugene https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5627906 US Patent Document 5,627,906	patent	May 1997
Differential phase velocity determining delay measurement apparatus and associated method Andersen, Jorgen W. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5698786 US Patent Document 5,698,786	patent	December 1997
Time domain delay measurement apparatus and associated method Andersen, Jorgen W. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5700952 US Patent Document 5,700,952	patent	December 1997
Method for detecting and sizing of cracks in bolt threads by rayleigh wave Suh, Dong Man; Kim, Whan Woo; Chung, Jin-Gyun https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5859370 US Patent Document 5,859,370	patent	January 1999

Cited By (2)

Digital pulsed phase locked loop Lynch, John E.; Blaker, David M.; Colatosti, David J. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7513160 US Patent Document 7,513,160	patent	April 2009
Acoustic—RF multi-sensor material characterization system Portune, Andrew Richard; Keller, III, Walter J. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/9599576 US Patent Document 9,599,576	patent	March 2017

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