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The Sonar Doppler Speed Log (DO-Log) is part of nautical equipment. The operation belongs to the bridge only. !!! New The new DO-Log system was installed in December 2017 !!!. |
Summary
Transducer Frequency:
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270 kHz |
Contacts
Components
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The system consists of two transducer elements installed in the ship's keel. The transducers can alternatively be used, e.g. one is backup. Electronic cabinet is mounted in Gravitymeter Room F-632. Hydroacoustic frequency amounts to 270 kHz. Transducer 1 S/N: 17889; Transducer 2 S/N: 17895. |
Subdevices
Position
Data logging, storage and archiving
Logged parameters
Central geographical ship's position and time standard
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Time synchronising is regulated by DShip. Geographical ship's position is provided by DShip. |
Rawdata storage on board
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Data storage in DShip system. |
Dship
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Uncorrected measurement data. |
Metadata list |
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|| Device name | DO-Log || || Parameters| speed bottomtrack across \[kn\]; speed bottomtrack ahead \[kn\]; speed watertrack across \[kn\]; speed watertrack ahead \[kn\] || |
Data archiving on land
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After the cruise the DShip data set can be extracted from https://dms.awi.de. |
Metadata list |
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|| File format(s) | *.txt || || Calibration certificates | NO || |