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The Motion Reference Unit - MRU history

MRU overview

Since 1992, when the MRU was introduced to the maritime market, tens of thousands of units have been deployed worldwide and are in operation in an extensive range of applications.

The MRU family of attitude sensors has in many applications become the de-facto sensor for attitude determination. With its leading position in the motion sensor market, Kongsberg is committed to constantly improving its offerings to the maritime industry.

Since its introduction in 1992, the MRU has evolved from a product with an initial roll and pitch accuracy of 0.3º to the current accuracy of 0.01º. Proving their robustness, many of the first units delivered are still in operation today. And with a strong emphasis on cost efficiency and customer benefits, the MRU story will continue to evolve.

In-house competence and know-how

Competence and know-how

Through its many years in the market, and a close co-operation with customers, Kongsberg has built up a unique level of experience in maritime applications. This know-how and expertise has been incorporated into its products, giving customers the tailored solutions they demand.

In-house expertise

Kongsberg can also call upon its in-house development of gyros, and their use in combination with accelerometers and GNSS receivers, to gained a deep know-how about these kind of sensors. This know-how is exploited to make better products for its customers.

Sensor fusion

During the last 20 years Kongsberg has been working on closely integrating MRU inertial navigation system (INS) and Global Navigation Satellite System (GNSS) technology. This integration, together with sensor fusion technologies, has resulted in the Seapath and the DPS series of products. In these products, the company utilizes the complementary nature of INS and GNSS technologies to make products that provide optimum results for position, attitude and heading.