Aerodynamic Particle Sizer (APS) Instrument Handbook
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Engineering topics
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The U.S. Department of Energy’s Atmospheric Radiation Measurement user facility (ARM) deploys at each of ARM’s observatories a suite of aerosol and trace gas (further mention of aerosols will assume inclusion of trace gases) instrumentation that constitute the Aerosol Observing Systems (AOS; Uin et al. 2019).
The Model 3776 Ultrafine Condensation Particle Counter (UCPC; pictured in Appendix A) is designed for researchers interested in airborne particles smaller than 20 nm. With sensitivity to particles down to 2.5 nm in diameter, this UCPC is ideally suited for atmospheric and climate research, particle formation and growth studies, combustion and engine exhaust research, and nanotechnology research.
The U.S. Department of Energy (DOE) Atmospheric Radiation Measurement (ARM) user facility deploys specialized Aerosol Observing Systems (AOSs; Figure 1) for ground-based, in situ measurements of properties of atmospheric aerosols in climatically important regions of the world.