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.
Patent No.:
Date of Patent:
May. 29, 2007
Filed:
May. 16, 2005
Applicants:
Paul H. Shelley, Lakewood, WA (US);
Wes W. Quigley, Auburn, WA (US);
Inventors:
Paul H. Shelley, Lakewood, WA (US);
Wes W. Quigley, Auburn, WA (US);
Assignee:
The Boeing Company, Chicago, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 21/35 (2006.01);
U.S. Cl.
CPC ...
Abstract
The the thickness of an opaque coating may be measured using near-infrared absorbance. One measurement method includes transmitting the near-infrared radiation towards the opaque material and determining relative absorbance levels over a range of near-infrared wavelengths. Absorbance wavelengths having relatively high absorbance and relatively low absorbance are then identified and selected. The selected wavelength values are then correlated with known material thicknesses.