Single-channel gas concentration measurement method and apparatu

Details Single-channel gas concentration measurement method and apparatu Single-channel gas concentration measurement method and apparatu

1995-12-18

1997-07-08

Gonzalez, Frank

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

359260, 359578, G01B 902, G02B 2700

Patent

active

056467290

ABSTRACT:
A single-channel gas concentration measurement method and apparatus. According to the method, a radiant source is employed to generate a measuring signal, the measuring signal is subsequently directed to a measurement object containing a gas mixture to be measured, the measuring signal is subsequently bandpass filtered using at least two passband wavelengths, and the filtered measuring signals are detected by a detector. According to the invention, the bandpass filtering step is implemented by a single electrostatically tunable, short-resonator Fabry-Perot interferometer.

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