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Optical path structure for open path emissions sensing
Optical path structure for open path emissions sensing
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机译:光路结构,用于开路排放物感应
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摘要
A gas component analysis system transmits, reflects, and detects light using infrared light source; a reflector unit; and a light detector. The light is transmitted through a gas, such as air containing vehicle emissions, reflected, and detected for analysis and measurement of the amount of absorption that has occurred at known wavelengths. The amount of absorption may be used to determine concentrations of reference gases corresponding to specific wavelengths.
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