Selective modulation radiometry for remote detection of gaseous pollutants
Abstract
A new radiometer permitting the remote detection of gaseous pollutants is described. The basic organization of the device is suitable for emission and absorption measurements in the UV, visible, or IR range. A procedure for computing modulation efficiency values and a theoretical calculation for a case of simple selectivity are presented. Applications of the method are considered, and UV measurements of SO2 obtained by using sky light as the source are examined.
- Publication:
-
Mesures Regulation Automatisme
- Pub Date:
- 1977
- Bibcode:
- 1977MeRAu..42...39L
- Keywords:
-
- Air Pollution;
- Gas Detectors;
- Light Modulation;
- Pollution Monitoring;
- Radiometers;
- Remote Sensors;
- Diffuse Radiation;
- Luminance;
- Molecular Absorption;
- Selectivity;
- Signal Processing;
- Sulfur Dioxides;
- Instrumentation and Photography