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Note |
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The Doppler Log (DO - Log) is part of nautical equipment. The operation belongs to the bridge only. |
Summary
Sensorweb integration |
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| The new DO-Log system was installed in December 2017.
Summary
vessel:heincke:do-log | contenttype | Summary |
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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. Wärtsilä SAM 4682 transducer consists of a total of 3 hydro-acoustic elements of 270 kHz. |
Sensorweb integration |
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urn | vessel:heincke:do-log |
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contenttype | Metadata |
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Manufacturer | Wärtsila SAM Electronics |
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Model | SAM4682 |
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Serial No. | n/a |
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Type | acoustic doppler velocimeter |
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REGISTRY-Link | ↪ REGISTRY (1620) |
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Sensorweb integration |
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urn | vessel:heincke:do-log |
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contenttype | Images |
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Image Added Image Added |
Transducer Frequency
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Metadata (Metadata Plugin) |
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270 kHz |
Contacts
Components
Contacts
Sensorweb integration |
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urn | vessel:heincke:do-log |
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contenttype | Contacts |
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Name | Institution | Role |
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Reederei Briese | Briese Schiffahrts GmbH & Co. KG | Engineer In Charge |
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Metadata (Metadata Plugin) |
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0 |
Components
The
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system
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consists
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of a transducer with 3 hydro-acoustic elements installed in the ship's
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keel. It is operated from the bridge.
Sensorweb integration |
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urn | vessel:heincke:do-log |
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contenttype | Subdevices |
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No subdevices available. |
Position
Sensorweb integration |
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urn | vessel:heincke:do-log |
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contenttype | LocalFrame |
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Info | xyz-position of transducer from Alignment Survey Report RV Heincke (January 2016). Electronics and operation on bridge deck. | X | 47.221 m (Positive X axis is forward and along the centerline of the vessel with X0 at the Stern point of the vessel. ) | Y | -0.017 m ( Positive Y axis is portside of centerline with Y0 at centerline at the Very stern point of the vessel. ) | Z | -0.074 m (Positive Z axis is upwards of basis. Z0 is set to the hydrophone on midship.) |
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Subdevices
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Data logging, storage and archiving
Logged parameters
Sensorweb integration |
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urn | vessel:heincke:do-log |
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contenttype | Parameters |
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Parameter | O2ARegistry Output Type | Unit |
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longitudinal ground speed | speed | knot | longitudinal water speed | speed | knot | transverse water speed | speed | knot | transverse ground speed | speed | knot |
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Central geographical ship's position and time standard
Metadata (Metadata Plugin) |
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| Time synchronising is regulated by DShip.
Geographical ship's position is provided by DShip. |
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Rawdata storage on board
Metadata (Metadata Plugin) |
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| Data storage in
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DShip
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Metadata (Metadata Plugin) |
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| Uncorrected measurement data. |
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Metadata list |
|| Device name | DO-Log ||
|| Parameters| speed bottomtrack across \[kn\]; speed bottomtrack ahead \[kn\]; speed watertrack across \[kn\]; speed watertrack ahead \[kn\] || |
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Data archiving on land
Metadata (Metadata Plugin) |
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After the cruise the DShip data set can be extracted from https://dms.awi.de.
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Metadata list |
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|| File format(s) | *.txt ||
|| Calibration certificates | NO || |
Documentation
Sensorweb integration |
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urn | vessel:heincke:do-log |
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contenttype | Resources |
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