Abstract: A device and method for determining characteristics of a concrete sample includes the use of multiple transducers. The transducers may couple to the concrete surface so that they can impart or receive mechanical waves from the sample. An area within a plane in the concrete sample is bounded by a collective extent of mechanical waves that pass through the plane and has a dimension at least as long as a distance between reinforcing bars in the concrete.
Abstract: A device for testing a test material for defects within the test material has an acoustic broadband transducer offset from the test material surface during testing by a distance so that the transducer acquires acoustic waves across an air gap from the test material, wherein the acoustic waves arise from impact of an impact member on the test material.
Type:
Grant
Filed:
September 15, 2015
Date of Patent:
November 13, 2018
Assignee:
NLA Diagnostics LLC
Inventors:
Aldo Bellotti, Ralph N. Strayhorn, IV, Amadeo A. Bellotti
Abstract: A device and method for determining characteristics of a concrete sample includes the use of multiple transducers at pre-determined positions with respect to each other. The transducers are coupled to the concrete surface so that they can impart and/or receive mechanical waves from the sample. Mechanical waves may be imparted to the sample by one or more transducers or by an impact hammer. A control device receives the output from receiving transducers and analyzes data there from to determine a desired characteristic of the sample.
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