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LD90 is a CLASS 1 Laser Product which is safe under reasonably foreseeable conditions of operation. DO NOT UNNECESSARILY LOOK INTO THE TRANSMITTER LENS! DO NOT UNNECESSARILY POINT THE TRANSMITTER LENS AT PEOPLES EYES! The invisible laser radiation INSIDE the instrument may exceed the accessible emission limits of laser class 1, thus never open the instrument's housing and never operate damaged instruments. Aligning the infrared laser instrument LD90 with the lenses of CCD-cameras or infrared night vision devices can result in damage to them. |
Summary
Sensorweb integration |
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urn | aircraft:bt-67:ld90 |
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contenttype | Summary |
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The Greenhouse Gas Analyzer (model GGA-24EP) is an advanced instrument for simultaneous measurements of methane (CH4), carbon dioxide (CO2) and water vapor (H2O) using cavity enhanced laser absorption techniqueLD90 is a Laser Distance Sensor which determines the distance to an object by means of transit time technique. It can be operated in the temperature range of -10 to +50°C. The maximum range is 2500m with an accuracy of 2.5cm. |
Sensorweb integration |
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urn | aircraft:bt-67:ld90 |
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contenttype | Metadata |
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Droplet Measurement TechnologiesUHSASLD90-3800HIP-LR | Serial No. |
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1206-036Spectrometer |
Contacts
Sensorweb integration |
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urn | aircraft:bt-67:ld90 |
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contenttype | Contacts |
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| Name | Institution | Role |
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Gerd Rohardt | Alfred-Wegener-Institute | Data Scientist |
Andreas Wisotzky | Alfred-Wegener-Institute for Polar and Marine Research | Data Scientist |
FIELAX GmbH | FIELAX Gesellschaft für wissenschaftliche Datenverarbeitung mbH | Engineer In Charge |
Components
The Fast Greenhouse Gas Analyser consists of a rack unit that is connected via tubing to an air inlet.
Position
Available Devices and Specifications
Sensorweb integration |
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urn | aircraft:bt-67:ld90 |
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contenttype | Subdevices |
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Specifications of LD90 (without mounting)
Metadata list |
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Sensorweb integration |
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urn | aircraft:bt-67:ld90 |
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contenttype | LocalFrame |
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Origin Description: | The device is installed in a rack. It is connected with tubes to an air inlet installed at the cabin roof. |
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Data logging, storage and archiving
Logged parameter
Sensorweb integration |
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urn | aircraft:bt-67:ld90 |
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contenttype | Parameters |
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Sensor O2ARegistry Output Type | Unit |
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conductivity | conductivity | Hz | internal temperature | temperature | Hz | external temperature | water temperature | Hz | first voltage | voltage | V | second voltage | voltage | V | Salinity | salinity | PSU | distance between aircraft and surface | distance | m |
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Rawdata storage on board
Metadata (Metadata Plugin) |
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During flight FGGA data are stored within the rack unit. Analog data of the methane concentration are also stored within the DMS system. |
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Data archiving on land
Metadata (Metadata Plugin) |
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After the flight FGGA data have to be downloaded and are stored within the external devices file system of the aircraft data managment system (DMS). |
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DMS
Metadata list |
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|| Module name| B870 Greenhouse Gas Analyzer||
|| Device name | Greenhouse Gas Analyzer||
|| Parameters | ErrorText; MethaneConcentration raw \[V\]; Status || |
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Documentation
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urn | aircraft:bt-67:ld90 |
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contenttype | Resources |
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