Dual Quantum Cascade Laser Trace Gas Detector MODEL QCL-76-D

Gas analysis system for continuous, accurate  and simultaneous measurement of concentrations and fluxes of multiple atmospheric trace gases
The Dual Quantum Cascade Laser Trace Gas Detector MODEL QCL-76-D, is based on the extensive experience at Aerodyne Research, Inc. of providing high precision trace species measurement instruments to researchers in the atmospheric measurements community.
Applications :
Infrared absorption measurement of multiple trace gases such as: CH4, N2O, CH2O, CO2, NO, NO2, C2H6, NH3, O3, SO2, H2O2, and HNO3.
Atmospheric research requiring a high fidelity instrument flexible and rugged enough to operate in field experiments.
Remote sensing of emissions over swamps or bogs not readily accessible from conventional ground based platforms.


Astigmatic Multi- pass Absorption Cell (AMAC)

Long path length - low volume fast response absorption cell for tunable laser spectroscopy and atmospheric trace gas detection.

Optical Design Astigmatic two-mirror system with central coupling hole.
Mirrors Nickel plated aluminum with broad-band dielectric coating.
Wavelength range 3 to 11 µm (actual range may be broader).
Reflectivity 99.2 %
Window material BaF2
Body materials Nickel plated aluminum, stainless steel end flanges, Pyrex tube.

Aerosol Mass Spectrometer
 

The Aerodyne AMS provides quantitative real-time Size-resolved composition analysis of nonrefractory particulate matter. Aerosol particles in the size range 0.04 to ~1.0 micrometers are sampled into a high vacuum system where they are aerodynamically focused into a narrow beam (~1 mm diameter). The particle beam is directed onto a resistively heated surface where volatile and semi volatile chemical components are thermally vaporized and detected via standard 70 eV electron impact ionization quadrupole mass spectrometry. Particle aerodynamic diameter is determined from particle time of- flight (velocity) measurements using a beam chopping technique.