Multi-harmonic inline reference cell for optical trace gas sensing
作者： Mark A. Zondlo , M. Amir Khan , Kang Sun , Lei Tao , David Miller
DOI:
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摘要: A spectroscopic sensor and a method of determining concentration sample are disclosed. The is used in connection with cell containing sample. includes coherent light source configured to transmit an interrogation beam along optical path directed towards the also in-line reference located path. detector having outputs responsive absorption signals from cell. processor isolate generate calibration information based on determine signals.
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