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:
Sep. 15, 1998
Filed:
Jan. 29, 1997
Jerry Schlagheck, West Chester, OH (US);
Pierre Beaudry, Gatineau, CA;
Art Aerospace Research Technologies Inc., Ville St. Laurent, CA;
Abstract
In general, the spatial resolution and repeatability of results using infrared detectors for examining printed circuit cards has been so poor that the devices have failed to achieve commercial success. These problems are overcome by a system including an isothermal enclosure for receiving a card to be tested, an infrared camera in the chamber defined by the enclosure, sensors for monitoring the temperature of the card and ambient temperature conditions in the chamber to derive signals indicative of the temperatures, and a computer connected to the camera and to the sensors for examining all signals to produce a three dimensional image of the sample, variations in the image from sample to sample being indicative of an anomaly in a sample.