European Facility For Airborne Research Dec. 5, 2025, 08:46
| Name | NOxTOy |
| Acronym | NOxTOy |
| Manufacturer | MetAir, in co-operation with PSI |
| Manufacturer website | http://www.metair.ch/noxtoy.htm |
| Operated by | METAIR |
| Operated onboard |
| Name | Trace Gas Analyzer |
| Acronym | Trace Gas Analyzer |
| Measured parameter | Trace Gas concentrations |
| Operating principle | |
| Measurement(s) | Gas Phase |
| External dimension | |
| Weight | 9.0 |
| Operating mode | In situ |
| Range | |
| Resolution | |
| Sensitivity | |
| Accuracy | |
| Bandwidth | |
| Modifications | self developed |
| Operational restriction | no real restrictions, but, the instrument is more suitable for measurements in the boundary layer (mixed layer, with NO2-concentrations >2 ppb) than in background concentrations in the Free Troposphere. |
| Operational requirements | 28 VDC, 90 VA |
| Certification approvals | presently only operational in MetAir's DIMO. Other similar instruments are in service at MeteoFrance, and in the DO-128 of TU-Braunschweig. Status of certification there is unknown. |
| Additional information | The calibration is done by injecting NO2 from a permeation source (or from a 10 ppm cylinder) via a capillary in a variable air flow. The NO2 concentration can be referenced to O3 by using the Ox-channel. Therefore, NO2 losses in the system and other uncertainties are cancelled. |
| Access | Yes, in principle. But, the user has to be skilled, trained, and has to perform the certification for his/her use. |
| Could also fit on any aircraft having the following characteristics | |
| General description |
| Title | Author | Type | Related |
|---|---|---|---|
| No documents. |