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:
Apr. 14, 2009
Filed:
Jun. 01, 2007
Neil J. Goldfine, Newton, MA (US);
Darrell E. Schlicker, Watertown, MA (US);
Andrew P. Washabaugh, Chula Vista, CA (US);
Ian C. Shav, Cambridge, MA (US);
Mark D. Windoloski, Burlington, MA (US);
Christopher Root, Somerville, MA (US);
Vladimir A. Zilberstein, Chestnut Hill, MA (US);
David C. Grundy, Reading, MA (US);
Vladimir Tsukernik, West Roxbury, MA (US);
Neil J. Goldfine, Newton, MA (US);
Darrell E. Schlicker, Watertown, MA (US);
Andrew P. Washabaugh, Chula Vista, CA (US);
Ian C. Shav, Cambridge, MA (US);
Mark D. Windoloski, Burlington, MA (US);
Christopher Root, Somerville, MA (US);
Vladimir A. Zilberstein, Chestnut Hill, MA (US);
David C. Grundy, Reading, MA (US);
Vladimir Tsukernik, West Roxbury, MA (US);
JENTEK Sensors, Inc., Waltham, MA (US);
Abstract
Combined wound and micro-fabricated winding constructs are described for the inspection of materials and the detection and characterization of hidden features or flaws. These constructs can be configured as sensors or sensor arrays that are surface mounted or scanned over conducting and/or magnetizable test materials. The well-defined geometry obtained micro-fabricated windings and from carefully wound coils with known winding positions permits the use of model based inversions of sensed responses into material properties. In a preferred embodiment, the primary winding is a wound coil and the sense elements are etched or printed. The drive or sense windings can also be mounted under fasteners to improve sensitivity to hidden flaws. Ferrites and other means may be used to guide the magnetic flux and enhance the magnetic field in the test material.