FTIR REMOTE SENSOR APPARATUS AND METHOD

摘要

An apparatus and method for analyzing one or more gases in a target area. A modulated infrared light source produces an infrared beam that is capable of being absorbed at different wavelengths by the gases being analyzed. An optical arrangement transmits the infrared beam from the light source in a first path across the target area where a reflective element is positioned to return the infrared beam back along the first path to the optical arrangement. Based upon the absorption spectrum of the received beam, a determination can be made of the gases present and the concentrations thereof in the target area.