Patent ID: 7460232
Filing Date: 2008-12-02
Classification: G01N

Abstract:
1. A non-intrusive device for allowing spectrum analysis of a confined process stream through a process line, comprising a light-transmitting conduit section having a circular wall defining a closed section through which the process stream flows, a clip adapted to be externally mounted on the light-transmitting conduit section, said clip being at least partly made of a light-transmitting material, an input fiber optic cable connectable to said clip and having a light delivery end disposed outside of the conduit section on a first side thereof for directing a beam of light from a source of light though the circular wall of the conduit section and transversally through the process stream flowing through the conduit section, the light delivery end of the input fiber optic cable being separated from the process stream by the circular wall of the conduit section, an output fiber optic cable connectable to said clip and having a receiving end disposed outside of the conduit section for transmitting light emanating from the circular wall of the conduit section to a light-receiving sensor, and wherein said clip includes a hollow body housing at least one optical element, the optical element focussing the light emanating from the input fiber optic cable into the output fiber optic cable transversely through the process stream and the circular wall of the light-transmitting conduit section, the optical element being disposed remotely outside of the light-transmitting conduit section,. the circular wall of the conduit section preventing the process stream from contacting the optical element, the input and output fiber optic cables.