GAS ANALYSIS SYSTEM HAVING BUFFER GAS INPUTS TO PROTECT ASSOCIATED OPTICAL ELEMENTS

摘要

an analysis unit (110), a gas is placed within the resonant optical cavity, a gas analysis system provides a flow of gas which has buffer dam 'training' and protecting the optical elements (120, 122) of the analysis system. the analysis unit (110) includes an input (134) for the entry of a gas sample into the analysis chamber (126).we have made two lights in (140, 142), one at each end of the cell to a buffer gas flows across the optical elements of the device (120)) near the ends of the cell. two lights out (144, 146) are placed at the ends of the analysis chamber (126) to extract the mixture of buffer gas and the sample.the flow of buffer gas contains the gas sample into the analysis chamber (126) and limit the disadvantages that occur when the gas sample is in contact with the optical elements (120, 122) of the device.thanks to a steady flow of gas from the non turbulent optical device, avoidance of adverse changes in the index of refraction, which limits the deflection of the beam, and the effects strioscopiques may occur when using windows or other optiq brewster method for confining the gas sample in the analysis cell.the flow of buffer gas in the joint mission analysis cell (100) of the invention avoids the need to set up windows that are intrinsic losses, which in turn reduces the power of movement in the cavity, and the strength of the signal.