European Facility For Airborne Research Nov. 24, 2024, 01:06
| Name | Counterflow Virtual Impactor |
| Acronym | CVI-METOFFICE |
| Manufacturer | University of Stockholm / Met Office developed |
| Operated by | METOFFICE |
| Operated onboard |
| Name | Counter-flow Virtual Impactor (CVI) |
| Acronym | Counter-flow Virtual Impactor |
| Measured parameter | |
| Operating principle | Sample arm has heated dry air blowing OUT of it into airstream. Location of flow stagnation plane within intake determines minimum aerodynamic size of particles that can enter. Liquid or ice cloud particles enter intake, where water evaporates leaving cloud drop residual and water vapour. |
| Measurement(s) | Aerosol |
| External dimension | 3 double 19 inch racks required, plus specialised air inlet mounted externally |
| Weight | 110.0 |
| Operating mode | In situ |
| Range | |
| Resolution | |
| Sensitivity | |
| Accuracy | |
| Bandwidth | |
| Modifications | Sample flow splits to several separate instruments that currently include: |
| Operational restriction | The siting and orientaton of the sample arm, is critical to the operation of this instrument. |
| Operational requirements | Sample arm/inlet needs to be removed or blanked off if not required, as probe tip very delicate. Required dedicated person to operate instrument. |
| Certification approvals | Approved by CAA for use on BAe 146-301. |
| Additional information | Available from Met Office. |
| Access | From Met Office |
| Could also fit on any aircraft having the following characteristics | |
| General description |
| Title | Author | Type | Related |
|---|---|---|---|
| No documents. |