Stabilized infrared source for infrared spectrometers
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United States of America Patent
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Oct 10, 2006
Grant Date -
Jul 14, 2005
app pub date -
Jan 13, 2004
filing date -
Jan 13, 2004
priority date (Note) -
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Abstract
An infrared spectrometer includes an infrared source system that is stabilized to provide a substantially constant output light intensity. The infrared source system includes a source element adapted to receive electrical power and to emit light at an intensity related to the electrical power received by the source element. A light detector is mounted in position to receive light emitted from the source element and to provide an output signal related to the intensity of the light received by the detector. A feedback control loop receives the signal from the detector and provides electrical power to the source element to maintain the intensity of the light output from the source element at a selected level as detected by the detector.
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