Sensors & Electronics
Chemical Sensors
Modeling Atmospheric IR Absorption (21)
Problem: Model the effects of atmospheric and process gases on the ability to perform IR detection of specific analytes
Project Activity Scope (from Technical Overview Chart): Mechanisms
PNNL Solution:
- Implemented IR absorption model that can be tailored to include specific gas-phase constituents
- Established IR database of analyte absorption spectra and strengths at required spectral resolution
- Successfully employed model/database to select detection wavelengths
Capabilities Employed to Meet Client Needs: High resolution spectroscopy ranging from visible through infrared spectral regions; atmospheric optical absorption, emittance, and scattering phenomena; black body emittance effects; physical interaction modeling and algorithm development; application of existing software resources (HiTran, FasCode, FASE, LBLRTM, etc.); custom software development; validation using existing experimental results and complementary model predictions; modeling of measurement instrument design parameter effects; formal reporting of results (open literature and client reports).
Selected Links to Related Information:
- Related Examples (Same Project)
Contact: Steve Sharpe
