How It Works
The system is being designed to draw the driver’s exhaled breath into a sensor, which measures the concentrations of alcohol and carbon dioxide present. The known quantity of carbon dioxide in human breath serves as an indicator of the degree of dilution of the alcohol concentration in exhaled air.
Molecules of alcohol and those of tracers such as carbon dioxide absorb infrared light at specific wavelengths. The device is being designed to direct infrared light beams on the breath sample and analyze the wavelengths returned to quickly and accurately calculate the alcohol concentration. The device is designed to be highly sensitive in order to analyze diluted breath samples at dilutions expected from a driver’s natural breath plume. Program engineers continue to work with Senseair to evolve the technology by utilizing mirrors to reduce the required optical length of the device so that it can seamlessly fit into vehicles.
Testing The Prototype
About The Manufacturer
Senseair is an innovation-based sensor company and leading manufacturer of infrared carbon dioxide sensors and controllers. It is based in Sweden, with over 20 years’ experience in the field of infrared gas measurement technology. Learn more about the manufacturer at: www.senseair.com