Patent ID: 6862549
Filing Date: 2005-03-01
Classification: A61B,G01J,G01K

Abstract:
1. A radiometric temperature measurement system that performs with a low-temperature measurement sensitivity noncontacting measurement of a temperature of a target medium, comprising: a radiation emission collector including a probe element configured for noncontacting collection of radiation emitted by the target medium, the radiation collected by the probe element having an intensity and occupying a range of wavelengths representing the temperature of the target medium; and a radiation detector receiving a portion of the radiation collected by the probe element, the radiation emission collector directly coupled to the radiation detector to provide to it low loss transmission of the portion of the radiation collected, the radiation detector having a narrowband wavelength selective spectral response characteristic that enables the radiation detector in response to wavelengths of radiation within the range of wavelengths to provide a signal that is indicative of the temperature of the target medium, the low-temperature measurement sensitivity including measuring temperatures less than about 35° C.