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:
Mar. 01, 2011
Filed:
Jul. 23, 2007
Jeffrey R. Kollgaard, Kent, WA (US);
Carrie Ann Decker, Seattle, WA (US);
Barry A. Fetzer, Renton, WA (US);
Kevin M. Uhl, Snohomish, WA (US);
Jeffrey R. Kollgaard, Kent, WA (US);
Carrie Ann Decker, Seattle, WA (US);
Barry A. Fetzer, Renton, WA (US);
Kevin M. Uhl, Snohomish, WA (US);
The Boeing Company, Chicago, IL (US);
Abstract
A computer implemented method, or hardware filtration apparatus, and computer usable program code for measuring porosity in materials. An ultrasonic signal is emitted from a transmitting transducer in an ultrasonic measurement system into a material. A response signal is received at a receiving transducer in the ultrasonic measurement system from the material. The response signal is filtered to pass only frequencies in the response signal within a selected frequency range to form a filtered response signal. A porosity level of the material is identified using the filtered response signal.