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. 28, 1992
Filed:
Jun. 20, 1990
Richard K James, Redmond, WA (US);
Quadtek, Inc., Redmond, WA (US);
Abstract
A temperature-imaging system for generating an absolute temperature value for a point of interest on a monitored surface is disclosed. The system includes a camera and a temperature analyzer. The camera gathers video image data related to surface intensity and reference temperature data related to the absolute temperature at a reference point on the surface. The camera is configured so that the reference point is a fixed known point in the surface intensity image that moves with the movement of the camera. Thus, the reference temperature to reference point relationship is fixed. In operation, a video image and the reference temperature data are passed to the temperature analyzer. The temperature analyzer determines the absolute-temperature at a preselected point of interest on the surface. The temperature analyzer identifies the portion of the video image corresponding to the point of interest, and identifies the portion of the video image related to the reference point. The temperature analyzer generates an absolute temperature value for the point of interest by analyzing the reference temperature data, and the video image intensities related to the reference point and the point of interest. Because of the fixed relationship between the reference temperature data and the reference point in the video image, the system is always well calibrated and provides accurate absolute temperature outputs.