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:
Jul. 21, 1992
Filed:
Mar. 20, 1991
Mansoor A Khan, Grafton, MA (US);
Charly Allemand, Newtonville, MA (US);
Thomas W Eagar, Belmont, MA (US);
Massachusetts Institute of Technology, Cambridge, MA (US);
Abstract
An apparatus and method for non-contact temperature measurement of an object, using least-squares-based multiwavelength pyrometry techniques. Radiances from an object are detected by a spectrograph/detector apparatus and are converted into electronic signals readable by a computer. The computer then operates on these signals as data to be curve-fit, using least squares analysis, to a predetermined theoretical function for the dependence of the radiance on the wavelength. When the computer has minimized the least-squares difference function, the computer identified a parameter representing the temperature and reports this value to the user, along with a collaterally calculated maximum error in the temperature estimate.