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:
Jan. 19, 1999
Filed:
Oct. 30, 1996
Simon Tsao, Hsin-Chu, TW;
Jin-Shown Shie, Hsin-Chu, TW;
James Huang, Hsin-Chu, TW;
Clark Liang, Hsin-Chu, TW;
San-Bao Lin, Hsin-Chu, TW;
Mang Ou-Yang, Hsin-Chu, TW;
Jerry You, Hsin-Chu, TW;
Abstract
An absolute radiation thermometer capable of evaluating the absolute value of infrared radiation power emitted from a target and received by a radiation sensor by means of electrical calibration, and calculating the temperature of the target basing on the responsive signal generated in the radiation sensor. To solve 'Microphonic' problem, two identical sensors connected in parallel with the polarized orientations of their pyroelectric layers being in opposite directions so as to cancel the piezoelectric signals generated in the two sensors are used. Further, by using a floating power supply, which is isolated from the system power supply of the thermometer, for performing electrical heating, power supply noise can be greatly reduced.