The Model
FTUV-NH3 gas analyser is an ammonia gas monitoring system specifically designed
for stack emission, motor exhaust and gas manufacturer.
The measurement
principle is based on the UV absorption spectrum of the ammonia gas (NH3) 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 periodic structure of the analysed gas, different
for any
other gases.
Based on UV Fourier Transform for high
selectivity and stability
Ultra-fast response time
(<2 sec)
50 Megaflop DSP for
signal extraction
No risk of interference
with CO, CO2, H2O
No converter, no
maintenance
10-years lamp lifetime