The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 12, 2023

Filed:

Sep. 29, 2021
Applicant:

United States of America As Represented BY the Secretary of the Army, Alexandria, VA (US);

Inventors:

Rebekah C Wilson, Mahomet, IL (US);

Benjamin C Masters, Urbana, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 21/86 (2006.01); G01N 21/84 (2006.01); G01L 1/24 (2006.01);
U.S. Cl.
CPC ...
G01N 21/86 (2013.01); G01L 1/24 (2013.01); G01N 21/8422 (2013.01); G01N 2021/8438 (2013.01); G01N 2021/8636 (2013.01);
Abstract

Disclosed are methods that, by not physically touching a material being measured, can measure the material's differential response quite accurately. A collimated light shines on the material under test, is reflected off it, and is then captured by a device that records the position where the reflected light is captured. This process is done both before and after the material is processed in some way (e.g., by applying a coat of paint). The change in position where the reflected light is captured is used in calculating the deflection of the material as induced by the process. This measured induced deflection is then used to accurately determinate the stress introduced into the material by the process. Other characteristics of the material under test, such as aspects of the material composition of a bi-metallic strip, for example, may also be determined from a deflection measurement.


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