Automotive Exhaust Emissions Sensing

The centre is heavily involved in the detection and monitoring of automotive exhaust gases. The primary technique being employed to identify individual pollutants is known as optical spectroscopy. This involves irradiating the gas with optical and near optical radiation and monitoring the absorption at specific wavelengths.

Each gas has it’s own unique absorption pattern which enables us to pinpoint what gases are present and the degree of absorption at these wavelengths lets us know in what concentrations.

Some of the gases under inspection include Carbon Dioxide (CO2), Carbon Monoxide (CO), oxides of Nitrogen (NOx), oxides of Sulphur (SOx ) & Hydrocarbons (HC). The radiation being used includes Ultra Violet, Visible, Near Infrared & Mid Infrared.