- The Model EXM400 gas analyser is specifically designed for stack emission, deNOx and desulphurisation systems, motor exhaust and other chemical processes.
- The measurement principle is based on the UV absorption spectrum of gases in the UV range. The periodic structure of the absorption bands coming from the different levels of rotational energy of the gas molecules is analysed by performing a Fourier Transform on the absorption spectrum with a high speed DSP (Digital Signal Processor).
- At the opposite of the FTIR approach where the Fourier transform needs moving optical components, the Fourier transform in the UV range is done by solid state optics and electronic circuits, which constitutes a more reliable solution for a lower cost.
- The selectivity of the analyser is guaranteed by the typical UV spectrum of each gas.
Category: Aplikasi & System
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