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Operation of the Snow Thickness Radar requires experienced personnel on board the aircraft. |
Summary
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| urn | aircraft:bt-67:fmcw_snow |
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| contenttype | Summary |
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The Frequency Modulated Continuous Wave (FMCW) System is used for snow thickness measurements on sea ice with a vertical resolution in centimeter range (2 cm). aircraft:bt-67:fmcw_snow (6796) |
| Sensorweb integration |
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| urn | aircraft:bt-67:fmcw_snow |
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| contenttype | Metadata |
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| Manufacturer | TU Harburg |
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| Model | 8-12 GHz radar system |
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| Serial No. | n/a |
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| Type | radar system |
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| Sensorweb integration |
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| urn | aircraft:bt-67:fmcw_snow |
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| contenttype | Images |
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| Sensorweb integration |
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| urn | aircraft:bt-67:fmcw_snow |
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| contenttype | Contacts |
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| Name | Institution | Role |
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| Daniel Steinhage | Alfred-Wegener-Institut | Device Contact |
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Components and Specifications
The FMCW snow system comprises a transmitting and a receiving horn antenna. Two different antenna setups are available. A rackmount unit containing the electronics is installed close to the antennas. The installation also comprises an amplifier and a cooling unit. The system is operated from an external PC.
| Sensorweb integration |
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| urn | aircraft:bt-67:fmcw_snow |
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| contenttype | Subdevices |
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| Name | Model | Serial Number |
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| Snow thickness radar 8-12 GHz horn antenna | LB-90-20 | J2021090417144 | | Snow thickness radar 8-12 GHz horn antenna | LB-90-20 | J2021090417145 | | Snow thickness radar 8-12 GHz rackmount unit | 8-12 GHz radar system | 1 |
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Specifications of the Rackmount Unit (without mounting)
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|| Dimension Sensor (L x W x H)| 380mm x 480mm x 130 mm ||
|| Weight | 9.5 kg||
|| Power Supply | 28 VDC ||
|| Data interface | USB|| |
Specifications of Horn Antennas (without mounting)
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|| Dimension Antennas Small (L x W x H)| 138 x 107 x 238 mm ||
|| Weight Antennas Small | 0.3 kg||
|| Dimension Antennas Tall (L x W x H)| 244 x 204 x 678 mm ||
|| Weight Antennas Tall | 1.8 kg|| |
Position
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| urn | aircraft:bt-67:fmcw_snow |
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| contenttype | LocalFrame |
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| Info | The transmitting and receiving horn antenna are installed on openings in the underfloor compartment. The electronic control unit is installed on the floor fastened on seat rails. |
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Data logging, storage and archiving
Logged parameter
| Sensorweb integration |
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| urn | aircraft:bt-67:fmcw_snow |
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| contenttype | Parameters |
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| Parameter | Sensor Output Type | Unit |
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| travel-times of amplitudes (amplitude) | amplitude | dB | | travel-times of amplitudes (speed) | speed | ns |
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Rawdata storage on board
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During flight the radar data are stored on an external PC. |
Data archiving on land
| Metadata (Metadata Plugin) |
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After the flight radar data are downloaded from the PC and are made accessible via the external devices file system of the land Data Managment System (DMS). |
Documentation
| Sensorweb integration |
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| urn | aircraft:bt-67:fmcw_snow |
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| contenttype | Resources |
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