Marine TeacherNov 8, 20202 minDoppler Log ErrorsError in transducer orientation: The transducers should make a perfect angle of 60° with respect to the keel or else the speed indicated...
Marine TeacherNov 7, 20201 minDoppler Log Speed Through WaterThe transmitted pulse has certain power and can go up to a limited depth usually 200 meters. Beyond this depth, the echoes from the...
Marine TeacherNov 7, 20203 minDoppler Log Janus ConfigurationDoppler Log general formula with only one transducer- A transducer is fitted on the ship’s keel which transmits a beam of acoustic wave...
Marine TeacherNov 7, 20201 minDoppler Log Principle PRINCIPLE Doppler log is based on the principle of “Doppler Shift Effect”, i.e., apparent change in frequency received (from what was...