Kongsberg’s New Marine Motion Sensor
Posted by Irina Tabakina
Kongsberg Maritime introduced a new member in its family of Motion Monitoring Units at Ocean Business 2015. As the new flagship unit, the MRU 5+ MK-II is part of a range of MRUs that offers reliable performance in attitude determination for diverse marine applications including motion compensation of multi-beam echo sounders, high speed craft motion control and damping systems, heave compensation of offshore cranes, dynamic positioning, hydro acoustic positioning, ship motion monitoring, ocean wave measurements and antenna motion compensation and stabilization.
The MRU 5+ MK-II offers performance through the use of a new sensing element (Coriolis force resonator) in the new design of integrated MEMS gyros. With less than 0.002° angle noise, and Angle Random Walk 0.006°/√h, the MRU is on par with fibre optic and ring laser gyros.
(As published in the MAY 2015 edition of Marine Technology Reporter - http://www.marinetechnologynews.com/Magazine)