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changes.mady.by.user Sebastian Immoor

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changes.mady.by.user FIELAX Support

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Comment: Automatically updated by Sensor2Confluence-Transporter (fsupport@binf02p165)

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Sensorweb integration
urnvessel:polarstern:do-log
contenttypeSummary

The Doppler log measures speed through water by using the Doppler effect of sound signal reflected from the seafloor or from suspended matter in the water column. Two transducer are installed in the ships keel and can be alternatively used. Hydroacoustic frequency amounts to 270 kHz.

Sensorweb integration
urnvessel:polarstern:do-log
contenttypeMetadata
ManufacturerSkipper Electronics A/S
ModelDL850
Serial No.Transducer 1 S/N: 17889, Transducer 2 S/N: 17895
Typespeed log
Sensorweb integration
urnvessel:polarstern:do-log
contenttypeImages

Image Added Image Added Image Added Image Added


Transducer Frequency:

Metadata (Metadata Plugin)
0Frequency
270 kHz

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Sensorweb integration
urnvessel:polarstern:do-log
contenttypeContacts
Name Institution Role
Reederei LaeiszReederei LaeiszEngineer In Charge


Components

Metadata (Metadata Plugin)
0Components
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.

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Sensorweb integration
urnvessel:polarstern:do-log
contenttypeSubdevices
Name Model Type
DOLOG_1A transducer DOLOG not assigned
DOLOG_1B transducer DOLOG not assigned
DOLOG_2 transducer DOLOG not assigned


Position

Sensorweb integration
urnvessel:polarstern:do-log
contenttypeLocalFrame
Origin Description:xyz-position calculated from Alignment Survey Report RV Polarstern (June 2016), transducer located in box keel, electronics located on F-deck room F632
X:69.366 m
(X-0 is at the center of der rudder (ref. design drawing of the vessel), positive X-axis is forward and along vessel centerline)
Y:0.415 m
(Y-0 at centerline, positive Y-axis is portside)
Z:0.014 m
(Z-0 is set to the lowest point of the keel, positive Z-axis is upwards)


Data logging, storage and archiving

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Sensorweb integration
urnvessel:polarstern:do-log
contenttypeParameters
Parameter Sensor Output Type Unit
speed bottomtrack acrossspeedknots
speed bottomtrack aheadspeedknots
speed watertrack acrossspeedknots
speed watertrack aheadspeedknots


Central geographical ship's position and time standard

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Sensorweb integration
urnvessel:polarstern:do-log
contenttypeResources