The Doppler Log (DO-Log) is part of nautical equipment. The operation belongs to the bridge only. The new DO-Log system was installed in December 2017. |
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. |
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