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Gas measurement module for use in therapeutic settings having a microspectrometer with a shortened optical path
专利权人:
James T. Russell
发明人:
James T. Russell
申请号:
US13519027
公开号:
US09201002B2
申请日:
2010.12.27
申请国别(地区):
US
年份:
2015
代理人:
摘要:
Gas within a ventilation circuit (12) is analyzed by a spectrometer included in gas measurement module (16) that is inserted into the respiratory circuit. The gas measurement module includes an infrared source and a movable filter member comprising at least two filter elements. The optical path length of the spectrometer is reduced. This includes removing optical components configured to collimate or focus electromagnetic radiation within the spectrometer. However, path length of the spectrometer is reduced to the point that other enhancements associated with path length reduction outweigh losses to precision and/or accuracy caused by beam expansion in the spectrometer.
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中国工程科技知识中心
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