European Facility For Airborne Research

European Facility For Airborne Research Dec. 5, 2025, 07:51

Instrument: Ultra High Sensitivity Aerosol Spectrometer

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  3. Instrument: Ultra High Sensitivity Aerosol Spectrometer
Name Ultra High Sensitivity Aerosol Spectrometer
Acronym UHSAS
Manufacturer Droplet Measurement Technologies
Manufacturer website http://www.dropletmeasurement.com/
Operated by UNIMAN
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 60 x 40 x 20 cm
Weight 31.0

Performance

Operating mode In situ
Range

Resolution

Sensitivity

Accuracy

Bandwidth

Modifications

None, mass flow controlled
Operational restriction

Minimal operator input - autoboot/log
Operational requirements

100-240 VAC, 47-63 Hz, 200W
Certification approvals

Certified for BAe 146 operation (Cloud-Physics - Rack
manchester/NCAS), ARSF Dornier and Cessna 182J
Additional information

Access, host and processing

Access

Yes
Could also fit on any aircraft having the following characteristics

General description

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