Patent ID: 6647350
Filing Date: 2003-11-11
Classification: A61B,G01J,G01K

Abstract:
A radiometric temperature measurement system that performs a measurement of a temperature of a target medium, comprising:a light guide formed of a material including yttrium aluminum garnet (YAG), the light guide configured for collection of radiation emitted by the target medium, the radiation collected having an intensity and occupying a range of wavelengths representing the temperature of the target medium; a radiation detector receiving the radiation collected by the light guide to provide a signal that is indicative of the temperature of the target medium; and an electronic circuit that processes the signal to provide the temperature measurement, the electronic circuit including an analog-to-digital converter (ADC) with an auto-ranging capability that adjusts an integration time of the ADC to maintain an output that is substantially centered between a minimum value and a maximum value.