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:
Oct. 17, 1978
Filed:
Jun. 13, 1977
Klaus Joachim Braun, Uberlingen, DE;
Bodenseewerk Perkin-Elmer & Co., GmbH, Uberlingen, DE;
Abstract
The invention relates to a method and apparatus for measuring the temperature of an object within a temperature range of between about 100.degree. C and about 2700.degree. C by deriving a signal indicative of the temperature of the object from the total radiation within a limited wavelength range extending from about 8 to about 14 microns. In one form of the invention, a device is provided which includes a radiation detector, a reference member, a temperature control device for automatically maintaining the temperature of the reference member at a substantially constant value, a device for alternately directing radiation from the object and from the reference through a filter to the radiation detector, a signal processing system for receiving signals from the radiation detector and outputting a signal indicative of the temperature of the object, responsive to the difference between the radiation detected from the object and from the reference member.