European Facility For Airborne Research

European Facility For Airborne Research Dec. 5, 2025, 08:30

Instrument: INTA Passive Cavity Aerosol Spectrometer Probe

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  3. Instrument: INTA Passive Cavity Aerosol Spectrometer Probe
Name INTA Passive Cavity Aerosol Spectrometer Probe
Acronym PCASP-100X-INTA
Manufacturer Particle Measuring Systems
Operated by INTA
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 40" long x 7" diameter (102cm x 18cm)
Weight 18.0

Performance

Operating mode In situ
Range

Resolution

Sensitivity

Accuracy

Bandwidth

Modifications

Operational restriction

Operational requirements

Probe power requirements: 115 VAC or 230 VAC, 50 - 60 Hz, less than 120 W
Anti-ice power requirements: 28 VDC, 215 W
Certification approvals

CASA-212
Additional information

Access, host and processing

Access

Consult INTA
Could also fit on any aircraft having the following characteristics

General description

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