AGILOG's international reputation stems from over 40 years of experience in the design and manufacture of ship’s log systems for over 40 other 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.

AGI’s products are highly customised items and are based on a modular design. The AGILOG 2 Speed and Distance Transmitter Unit (SDTU) provides a wide range of system interfaces and expansion options. AGILOG 2 provides dual axis speed measurement, with multiple RS422 serial outputs and Ethernet interfacing built in.

AGILOG 2 offers GPS assisted calibration which uses ground speed data to calculate the average true speed over a calibration run. This method does not depend on accurate distance and time measurements and is therefore easier to accomplish provided the following conditions are taken into account.

System Configuration: Typically the AGILOG 2 system comprises the SDTU, Underwater sensor (or sensors), Multi-Function displays and optional Data Distribution Unit for system expansion.

Key Features

  • GPS assisted calibration

  • Dual calibration curves

  • Dual axis option for forward and athwart ship speed/distance

  • Ethernet interface

  • Dual sensor option

  • Underwater sensor selection

  • Low magnetic signature (contact AGI for specific data)

  • Simulation more selection

  • Self-test capability (BITE)

  • Trip Meter

  • User friendly interface

  • Sensor replacement without dry docking


EMC – Mil-Std 461E

Shock – Mil-Std 901 grade A

Vibration – Mil-Std 167-1

Environmental – EN 60945

Power Supply – Mil-Std 1399 & EN 60945