European Facility For Airborne Research

European Facility For Airborne Research Dec. 5, 2025, 08:40

Instrument: Cloud Aerosol and Precipitation Spectrometer

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  3. Instrument: Cloud Aerosol and Precipitation Spectrometer
Name Cloud Aerosol and Precipitation Spectrometer
Acronym DMT-CAPS-UNIMAN
Manufacturer Droplet Measurement Technologies
Manufacturer website http://www.dropletmeasurement.com
Operated by UNIMAN
Operated onboard

Instrument type

Name Cloud/Aerosol Microphysics Multi-function Instrument
Acronym Aerosol/Cloud multi-function

Principle of operation

Measured parameter Aerosol and cloud droplet properties
Operating principle

Measurement(s) Aerosol

Dimension and weight

External dimension PMS/DMT canister mounting instrument
Weight 20.0

Performance

Operating mode In situ
Range

Resolution

Sensitivity

Accuracy

Bandwidth

Modifications

Incorporates standard DMT-provided depolarization measurement for backscatter detector of the CAS.
Operational restriction

Operational requirements

28Vdc (10A) instrument power,
1.2kW de-ice power
Certification approvals

Certified on FAAM BAe146 aircraft
Additional information

CAPS is a combined instrument incorporating three parts:
CAS - Cloud and Aerosol Spectrometer - single particle counter size (0.51-50 microns diameter) employing both forward and back-scattered light detection,
CIP-15 - Cloud Imaging Probe, 15 micron pixel size, an optical array imaging probe,
Hot-wire liquid water content detector, similar principle to King probe.

Access, host and processing

Access

Available from University of Manchester
Could also fit on any aircraft having the following characteristics

General description

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