Doppler speed logs
... beam transmission reduces the effects of vessel's pitch and roll in order to output precision measurements. Ground-tracking speed measurement range of up to 200 m. Workload for installation has been greatly reduced ...
Single and dual axis speed logs as well as dual axis doppler logs, optionally with docking function, are available. The speed logs provide ...
... provides accurate information of ship's speed over a wide range. Speeds are detected relative to the ground or water for both fore-aft and port-starboard directions. The measurement capability at dead ...
... Resultant Sea Current in speed and direction The SKIPPER DL21 is a Dual Axis Doppler Speed Log and a Single Axis Doppler Speed Log ...
Wärtsilä SAM 4682 is a navigation, 2 axis doppler log with a large, high resolution graphic LCD. An auxiliary, shallow water echosounder function is included. Display graphics are continuously shown on ...
Highly accurate speed and distance log for high-mileage trips. IMO MSC.96(72)-compliant Doppler Speed Log; compatible with ships above 300 GT. Measures ...
TOKYO KEIKI DOPPLER SPEED LOG TD-310 A high-accuracy Log complying with the requirements of IMO. Many signal output functions as standard and Easy installation. TD-310 The ...
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How to choose this product
The Doppler speed log measures a vessel's speed through the water or over the seabed. NauticExpo offers dual-axis Doppler logs for ships and three-axis models for submarines.
A Doppler speed log can be installed on any type of ship. Large ships can have both bow and stern units, yielding more precise readings of vessel movement, especially useful when docking or anchoring.
As its name indicates, this instrument uses the Doppler effect to calculate a ship's speed. Dual-axis models give both lateral and fore-and-aft readings. Three-axis systems are used aboard submarines to give vertical speed, as well. The log consists of one or more transducers mounted on the hull and linked to a display screen on the bridge.
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