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dc.contributor.authorCai, Y.
dc.contributor.authorSnider, Jefferson Robert
dc.contributor.authorWechsler, P.
dc.contributor.authorCai, Y.
dc.contributor.authorSnider, Jefferson Robert
dc.contributor.authorWechsler, P.
dc.date2013-09-11
dc.date.accessioned2018-06-10T20:51:49Z
dc.date.available2018-06-10T20:51:49Z
dc.description©2013 Author(s).
dc.description.abstractThis work describes calibration methods for the particle sizing and particle concentration systems of the passive cavity aerosol spectrometer probe (PCASP). Laboratory calibrations conducted over six years, in support of the deployment of a PCASP on a cloud physics research aircraft, are analyzed. Instead of using the many calibration sizes recommended by the PCASP manufacturer, a relationship between particle diameter and scattered light intensity is established using three sizes of mobility-selected polystyrene latex particles, one for each amplifier gain stage. In addition, studies of two factors influencing the PCASP's determination of the particle size distribution-amplifier baseline and particle shape-are conducted. It is shown that the PCASP-derived size distribution is sensitive to adjustments of the sizing system's baseline voltage, and that for aggregates of spheres, a PCASP-derived particle size and a sphere-equivalent particle size agree within uncertainty dictated by the PCASP's sizing resolution. Robust determinations of aerosol concentration, and size distribution, also require calibration of the PCASP's aerosol flowrate sensor. Sensor calibrations, calibration drift, and the sensor's non-linear response are documented.
dc.identifier.doi10.5194/amt-6-2349-2013
dc.identifier.urihttps://hdl.handle.net/20.500.11919/636
dc.languageEnglish
dc.publisherUniversity of Wyoming. Libraries
dc.relation.ispartofFaculty Publications - Atmospheric Science
dc.rightshttp://creativecommons.org/licenses/by/3.0/
dc.sourceAtmospheric Science Faculty Publications
dc.subjectaerosol property
dc.subjectcalibration
dc.subjectparticle size
dc.subjectpolymer
dc.subjectprobe
dc.subjectsensor
dc.subjectsize distribution
dc.subjectspectrometer
dc.subjectEngineering
dc.titleCalibration of the Passive Cavity Aerosol Spectrometer Probe for Airborne Determination of the Size Distribution
dc.typeJournal contribution
dcterms.title.journalAtmospheric Measurement Techniques
thesis.degree.disciplineAtmospheric Science


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