19 January 1995 Interferometric radiometer for continuous multicomponent monitoring
Author Affiliations +
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 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

Back to Top