European Facility For Airborne Research

European Facility For Airborne Research Dec. 22, 2024, 10:05

Instrument: FAAM100X Passive Cavity Aerosol Spectrometer Probe

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  3. Instrument: FAAM100X Passive Cavity Aerosol Spectrometer Probe
Name FAAM100X Passive Cavity Aerosol Spectrometer Probe
Acronym PCASP-100X-FAAM
Manufacturer Droplet Measurement Technologies
Manufacturer website http://www.dropletmeasurement.com
Operated by FAAM
Operated onboard

Instrument type

Name Aerosol Spectrometer Probe
Acronym Aerosol Spectrometer

Principle of operation

Measured parameter Aerosol concentration and size distribution spectra
Operating principle

Passive Cavity:
Measures amount of light scattered as aerosol particles cross a laser beam. Particle size determined using Mie theory. The particles are focussed in the field of view by a sheath airstream. Collecting optics arranged such that the probe exhibits a very small lower detection limit. Cannot be used within cloud as measurements contaminated by splashing and/or break-up of cloud droplets.
or
Condensation Nucleus Counter
or
Cloud Particle Counter
Measurement(s) Aerosol

Dimension and weight

External dimension Standard PMS canister, with external parts protrude 27 cm forward of canister, but within canister diameter
Weight 10.0

Performance

Operating mode In situ
Range

Resolution

Sensitivity

Accuracy

Bandwidth

Modifications

Modified from original PMS instrument by addition of DMT SPP-200 electronics package.
Operational restriction

Operational requirements

In standard PMS type canister external to the aircraft skin where flow is at free stream velocity and remote from regions of significant flow curvature
Certification approvals

Approved by CAA for use on BAe 146-301.
Additional information

Access, host and processing

Access

Available from Met Office
Could also fit on any aircraft having the following characteristics

General description

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