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Title: Apparatus and method for identification and recognition of an item with ultrasonic patterns from item subsurface micro-features

The present invention is a means and method for identification and recognition of an item by ultrasonic imaging of material microfeatures and/or macrofeatures within the bulk volume of a material. The invention is based upon ultrasonic interrogation and imaging of material microfeatures within the body of material by accepting only reflected ultrasonic energy from a preselected plane or volume within the material. An initial interrogation produces an identification reference. Subsequent new scans are statistically compared to the identification reference for making a match/non-match decision.
Inventors:
 [1];  [1];  [1];  [1];  [1];  [2];  [2]
  1. (Richland, WA)
  2. (Kennewick, WA)
Issue Date:
OSTI Identifier:
870088
Assignee:
Battelle Memorial Institute (Richland, WA) PNNL
Patent Number(s):
US 5454045
Contract Number:
AC06-76RL01830
Research Org:
BATTELLE MEMORIAL INSTITUTE
Country of Publication:
United States
Language:
English
Subject:
apparatus; method; identification; recognition; item; ultrasonic; patterns; subsurface; micro-features; means; imaging; material; microfeatures; macrofeatures; bulk; volume; based; interrogation; accepting; reflected; energy; preselected; plane; initial; produces; reference; subsequent; scans; statistically; compared; match; non-match; decision; bulk volume; ultrasonic energy; reflected ultrasonic; selected plane; ultrasonic imaging; /382/73/