Description

The MRU uses 3 axis accelerometers, 3 axis gyros and 3 axis magnetic sensors for pitch, roll, and heave calibration. SDI’s (M)onion (R)eference (U)nit integrates dual embedded micro-processors to produce information in an industry standard format. The MRU 333GI adds an internal GPS receiver and integrates GPS position with heading and speed to correct acceleration for heading changes. Add improvement to settling after turns. Remove errors in heave due to heading changes. A built-in true north world magnetic map produces a true north output for optimal accuracy. A “learning” software routine adjusts the MRU series to the boat characteristics to further improve overall accuracy. The MRU is a great addition to your BSS+ and Bathycase when trying to increase accuracy to your pitch roll heave calibration.