European Facility For Airborne Research

European Facility For Airborne Research Feb. 25, 2018, 22:36

Instrument: SAFIRE 230Y

Name SAFIRE 230Y
Acronym PMS-230Y
Manufacturer Particle Measuring Systems
Operated by SAFIRE
Operated onboard

Instrument type

Name Optical Array Probe (OAP)
Acronym Optical Array Probe

Principle of operation

Measured parameter Particle shadow area/diameter
Operating principle

Optical array probe. Cloud particle enters field of view passing through a laser beam. Particle shadow falls on a collecting optical array (normally a photodiode array). This is sampled at a rate such that the pixel resolution in time is the same as that in the across-array dimension. This forms a digitized shadow image of the particle.
From this size and shape are determined, and bulk parameters such as concentration and size spectra derived. Empirical relationships are used to calculate the mass of irregular particles (and hence the ice water content).

Measurement(s) Clouds & Precipitation

Dimension and weight

External dimension
Weight 20.25

Performance

Operating mode In situ
Range

Resolution

Sensitivity

Accuracy

Bandwidth

Modifications

Operational restriction

Operational requirements

Certification approvals

Additional information

Access, host and processing

Access

Could also fit on any aircraft having the following characteristics

General description

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This project has received funding from the European Union's Seventh Framework Programme for research, technological development and demonstration under grant agreement no. 312609

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