Patent ID: 9018592
Filing Date: 2015-04-28
Classification: G01J,G01N

Abstract:
1. Device for UV-spectrometric analysis of gaseous compounds, said device comprising: a measurement channel configured to accommodate a flow of sample gas to be analyzed, a window member transparent for ultraviolet radiation arranged at the first end of the measurement channel, a radiation source capable of generating ultraviolet radiation arranged to emit radiation through the window member and into the measurement channel, a spectrographic member for measuring of ultraviolet radiation emitted by the radiation source arranged at a second, opposite, end of the measurement channel, wherein the device is arranged such that ultraviolet radiation entering the measurement channel at the first end can propagate through the measurement channel, interact with the accommodated gas and be measured by the spectrographic member at the second end of the measurement channel, wherein the first end of the measurement channel is open towards the window member and a channel for guiding a protection gas directly toward the window member is arranged such that protection gas fed through the protection gas channel is allowed to flow over and cover the side of the window member facing the measurement channel and to flow further into the measurement channel.