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Note |
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Magnetic compensation flight procedures are required after each new installation of the magnetic sensors. |
Summary
Sensorweb integration |
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urn | aircraft:bt-67:magnetics |
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contenttype | Summary |
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Magnetic measurements can reveal the strength and direction of the geomagnetic field. One or two Cesium magnetometers are mounted in a combination of nose and/or tail booms. In addition, a Fluxgate Magnetometer for attitude compensation is installed. The sensor system and real-time compensation are controlled by an external unit (AADC II) mounted in a rack. Magnetic base stations with Overhauser magnetometers are used for ground reference of the airborne measurements. aircraft:bt-67:magnetics (6815) |
Sensorweb integration |
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urn | aircraft:bt-67:magnetics |
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contenttype | Metadata |
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Manufacturer | RMS Instruments, Scintrex Ltd., RMS Instruments |
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Model | see subdevices |
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Serial No. | n/a |
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Type | magnetometer |
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REGISTRY-Link | ↪ REGISTRY (6815) |
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Sensorweb integration |
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urn | aircraft:bt-67:magnetics |
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contenttype | Images |
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Contacts
Sensorweb integration |
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urn | aircraft:bt-67:magnetics |
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contenttype | Contacts |
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Name | Institution | Role |
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Graeme Eagles | Alfred | - of , Helmholtz Centre for Polar and Marine Research | Device Contact |
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Available devices and Specifications
Sensorweb integration |
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urn | aircraft:bt-67:magnetics |
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contenttype | Subdevices |
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Overhauser Magnetometer GSM-19 | GSM-19 | 52498 | Overhauser Magnetometer GSM-19 | GSM-19 | 62673 |
Specifications of RMS Compensator AADC II (without mounting)
Metadata list |
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|| Dimension Compensator (L x W x H)| 483 x 440 x 178 mm ||
|| Weight | 12.5 kg||
|| Power Supply| 28 VDC ||
|| Data interface | serial interface (RS-232)|| |
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Specifications of CS-3 Scintrex Cesium Magnetometers (without mounting)
The CS-3 magnetometers are installed at the tips of the noseboom and the tailboom. Length of the noseboom from the tip of the aircraft is about 3.3 m.
Metadata list |
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|| Dimension Sensor Head (Diameter x L)| 63 x 160 mm ||
|| Weight | 1.15 kg||
|| Dimension Sensor Electronics (Diameter x L) | 63 x 350 mm ||
|| Weight | 1.5 kg ||
|| Power Supply| 24 - 35 VDC || |
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Specifications of Billingsley Fluxgate Magnetometer (without mounting
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Specifications of GEM Overhauser Magnetometer
Metadata list |
|| Dimension Sensor (Diameter x L) | 75 x 175 mm ||
|| Weight Sensor | 1.0 kg ||
|| Dimension Console (L x W x H) | 223 x 240 x 69 mm ||
|| Weight Sensor | 2.1 kg ||
|| Data interface | serial interface (RS-232)|| |
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Position
Sensorweb integration |
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urn | aircraft:bt-67:magnetics |
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contenttype | LocalFrame |
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Info | CS-3 Cesium Magnetometers are mounted in a tail and a nose boom respectively. Additionally, a fluxgate magnetometer is mounted close to the aileron. Electronics are stored in a rack. | X | 0.0 none (no description given) | Y | 0.0 none (no description given) | Z | 0.0 none (no description given) |
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Data logging, storage and archiving
Logged parameter
Sensorweb integration |
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urn | aircraft:bt-67:magnetics |
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contenttype | Parameters |
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Sensor O2ARegistry Output Type | Unit |
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magnetic field compensated | magnetic field | nT | magnetic field raw | magnetic field | nT | magnetic field uncompensated | magnetic field | nT | magnetic field total | magnetic field | nT | magnetic field x-component | magnetic field | nT | magnetic field y-component | magnetic field | nT | magnetic field z-component | magnetic field | nT |
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Rawdata storage on board
Metadata (Metadata Plugin) |
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| During flight magnetometer data are stored within the aircraft onboard DMS system. Magnetic base stations record data independantly and continously. |
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Data archiving on land
Metadata (Metadata Plugin) |
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| After the flight CS-3 and Fluxgate magnetometer data are accessible via the land system of the aircraft data managment system (DMS). Base station data of the GEM Overhauser magnetometers are downloaded frequently and are made accessible via the external devices file system of the aircraft data managment system (
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DMS
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Metadata list |
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|| Module name| B707 Magnetic||
|| Device name | Magnetic||
|| Parameters | 4DIF(F) front \[nT\]; 4DIF(R) rear \[nT\]; Compensated grad 1 \[nT\]; Compensated mag front \[nT\]; Compensated mag rear \[nT\]; Error code; ErrorText; Magnetic ASCII; Mode code; Scan Number \[0.1 s\]; Status; Total field (Fluxgate) \[nT\]; Uncompensated grad 1 \[nT\]; Uncompensated mag front \[nT\]; Uncompensated mag rear \[nT\]; X-component (Fluxgate) \[nT\]; Y-component (Fluxgate) \[nT\]; Z-component (Fluxgate) \[nT\] ||
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Documentation
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urn | aircraft:bt-67:magnetics |
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contenttype | Resources |
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