Patent ID: 7288770
Filing Date: 2007-10-30
Classification: G01N

Abstract:
1. A portable chemical detection apparatus for measuring the chemical properties of a sample gas or fluid within a sample chamber comprising: an Ultra Violet light source; transmitter optics situated by said Ultra Violet light source such that said transmitter optics transmit a collimated beam of Ultra Violet light into a sample chamber; receiver optics situated such that once the collimated beam of Ultra Violet light has passed through the sample chamber said receiver optics receives said collimated beam of Ultra Violet light and focuses said collimated beam of Ultra Violet light onto a fiber optic coupling device; said fiber optic coupling device optically connected to a optical fiber such that said fiber optic coupling device transmits the collimated beam of Ultra Violet light into said optical fiber; a detection array optically connected to said optical fiber; and a processor in communication with said detection array and capable of processing the detected information from said detection array and determining chemical compositions from the detected information wherein the detection apparatus is a closed path apparatus wherein the internal environment of the detection apparatus is capable of being purged of oxygen thereby facilitating measurement in the 160-210 nanometer wavelength range for gaseous compounds that have characteristic spectral absorbance features within this spectral region.