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nl log  

meetinstrument of methode om de snelheid van het schip te bepalen. Men onderscheidt het meten met
- handlog,
- propellerlog,
- elektromagnetisch log,
- reling log,
alsmede de bepaling van de vaart volgens het aantal omwentelingen van de schroef en de bepaling van de vaart in mijlen.

 
de Log Meßmethode, auch Meßgerät zur Feststellung der Schiffsgeschwindigkeit; man unterscheidet das Messen mit
- Handlog
- Propellerlog
- Staudrucklog
- Elektrolog
- Relingslog
sowie Fahrtbestimmung nach Schraubenumdrehungen und Fahrtbestimmung in der Meßmeile.
en log An instrument for measuring the speed or distance or both traveled by a vessel.
chip log: an ancient instrument consists essentially of a weighted wooden quadrant (quarter of a circle) attached to a bridle in such a manner that it will float in a vertical position, and a line with equally spaced knots.
patent log: a mechanical means of determining speed or distance is called a patent log;
harpoon log: consists essentially of a combined rotator and distance registering device towed through the water. This has been largely replaced by the
taffrail log: a device similar to a harpoon log, but with the registering unit secured at the taffrail;
pitometer log: a log that consists essentially of a Pitot tube projecting into the water, and suitable registering devices;
electromagnetic log: a log that consists of suitable registering devices and an electromagnetic sensing element, extended below the hull of a vessel, which produces a voltage directly proportional to speed through the water;
Forbes log: consists of a small rotator in a tube projecting below the bottom of the vessel, and suitable registering devices;
dutchman's log: a buoyant object thrown overboard, the speed of a vessel being determined by noting the time required for a known length of the vessel to pass the object.
fr loch appareil servant à mesurer la vitesse et constitué primitivement par une planchette (ou bateau) se laissant aller à la mer au bout d'un câblot sur lequel des nœuds étaient marqués de distance en distance;
es corredera  
it solcometro
contamiglia
 
dk log      
se logg