Contact HPD

Commercial CRDS

Field deployable, high fidelity NOx spectrometer


In partnership with the National Oceanic and Atmospheric Administration (NOAA)
In partnership with the National Oceanic and Atmospheric Administration (NOAA)

In collaboration with NOAA, HPD is developing a new capability for atmospheric researchers to provide fast (~1Hz), high sensitivity (< 0.1 ppb 2-sigma precision) multi-channel measurements of ozone and three oxidized nitrogen (NO, NO2, NOy) species for atmospheric research. The underlying analytic technique is Cavity Ring-Down Spectroscopy (CRDS) measurement of NO2, with conversion of the other species to NO2 for their measurement. Detection of NO3 and N2O5 is even better, at <5 pptv precision within the same instrument or as a separate instrument. Advantages include a compact, robust instrument design, yielding simultaneous measurement and zeroing for all species with identical time response and sensitivity.

Contact HPD