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:
Feb. 07, 2006
Filed:
Feb. 27, 2004
Neil J. Goldfine, Newton, MA (US);
Vladimir A. Zilberstein, Chestnut Hill, MA (US);
Darrell E. Schlicker, Watertown, MA (US);
David C. Grundy, Reading, MA (US);
Ian Shay, Cambridge, MA (US);
Andrew P. Washabaugh, Chula Vista, CA (US);
Neil J. Goldfine, Newton, MA (US);
Vladimir A. Zilberstein, Chestnut Hill, MA (US);
Darrell E. Schlicker, Watertown, MA (US);
David C. Grundy, Reading, MA (US);
Ian Shay, Cambridge, MA (US);
Andrew P. Washabaugh, Chula Vista, CA (US);
JENTEK Sensors, Inc., Waltham, MA (US);
Abstract
A sensor that characterizes welds in materials. The sensor includes a meandering drive winding with at least three extended portions and at least one sensing element placed between an adjacent pair of extended portions. A time varying electric current is passed through the extended portions to form a magnetic field. The sensor is placed in proximity to the test material and translated over the weld region. An electrical property of the weld region is measured for each sensing element location. The weld quality is determined using a feature of the electrical property measurement and location.