This display requires that JavaScripts be enabled in your browser. For instructions, view
Instrument: PCASP : Passive-Cavity Aerosol Spectrometer Probe
View entire text

Related Data Sets
View all records related to this instrument

The Passive Cavity Aerosol Spectrometer Probe (PCASP) is an
airborne probe, similar in size to the Cloud Particle Probe,
Precipitation Probe, and FSSP (see Cloud Physics
instrumentation). It is configured in a rugged 17.8 cm (7 inch)
cylinder of 0.79 meter (31 inches) in length. A sampling cone
extends out from the forward end cap, oriented in the direction
of flight. A hollow rake at the rear of the cone creates a
venturi that draws a large volume of air flow into the small
opening at the tip of the cone during flight. The expanding cone
decelerates the input ram air to become iso-kinetic, with the
small volume of actual sample air flow drawn straight into the
inlet jet. The WMI-PCASP has 15 size channels, and measures
particles from 0.10 to 3.00 microns in diameter. Accuracy: ?20%
(diameter), ?16% (concentration). The size that is determined by
the PCASP assumes that the scattered light detected is from a
spherical particle of refractive index 1.58.

[Summary provided by Weather Modifications, Inc]