Trident is pleased to introduce our second generation AGILOG Electromagnetic (EM) Speed Log System
AGILOG 2 following on from the unprecedented success of its predecessor. Developed for use on surface
warships and submarines, AGILOG 2 sets the standard for accurate and reliable measurement of ship's
speed through the water, an essential element in navigation and weapons system integration.
Trident's international reputation stems from over 40 years of experience in the design and manufacture
of ship's log systems for 45 navies worldwide. Covering all classes of vessels - from nuclear and
conventional submarines, aircraft carriers and frigates, to fast patrol boats, mine-hunters and fleet
support ships.
AGILOG 2 is based on the well-established electromagnetic principle that a voltage is induced in a
conductor by a moving magnetic field. By using the sea water as a conductor, an output is generated as
the vessel progresses. Electromagnetic speed measurement is passive in operation and therefore
particularly suitable for use in submarines and warships. The EM technology provides reliable and robust
speed availability when compared to some alternative technologies.
System Configuration: Typically the AGILOG 2 system comprises of the SDTU, Underwater Sensor(s) (or
Probes) and Multi-Function displays.