NDUVNon-Dispersive Ultra-Violet analyzer
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SEMTECH employs NDIR, NDUV and FID technologies for gaseous measurements, a differential pressure technique to measure total exhaust flow, and a quartz crystal microbalance technique and partial dilution sampling systems for the mass measurement of particulate.
s proprietary NDUV (non-dispersive ultra violet spectroscopy) module, the NO and NO2 constituents of NOx can be measured simultaneously and independently.