19 January 1995 Interferometric radiometer for continuous multicomponent monitoring
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Proceedings Volume 2367, Optical Sensors for Environmental and Chemical Process Monitoring; (1995) https://doi.org/10.1117/12.199661
Event: Optical Sensing for Environmental and Process Monitoring, 1994, McLean, VA, United States
An optical monitoring technique that will produce an accurate qualitative measurement of simple multi-component optical spectra with a single direct measurement of interferogram phase is described. The analysis of absorption, emission or transmission spectra has proven to be a powerful tool for detecting chemical constituents in gaseous or liquid process streams. The pre-eminent instrument for this is the Fourier transform spectrometer (FTS); however, the high cost and relative fragility of these systems has prevented their widespread incorporation into chemical systems characterization. Using interferometric techniques similar to those used in FTS, but in a dramatically simplified embodiment, this system may provide the wavelength specificity and sensitivity of an FTS, with the low cost and ruggedness of a simple filter radiometer.
© (1995) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
James R. Engel, James R. Engel, James J. Connolly, James J. Connolly, } "Interferometric radiometer for continuous multicomponent monitoring", Proc. SPIE 2367, Optical Sensors for Environmental and Chemical Process Monitoring, (19 January 1995); doi: 10.1117/12.199661; https://doi.org/10.1117/12.199661

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