LR-450 Inertial Measurement Unit (IMU)

Introducing the LR-450 — the new standard for long-life and high-performance space missions, as an alternative to first-generation ring laser gyroscopes (RLG). Measuring just 341 cubic-inches, weighing under 10 pounds and requiring less than 15 watts of power, the LR-450 is well suited for mid-size satellite and deep space applications.

The LR-450 incorporates Northrop Grumman’s milli-HRG™ (mHRG™) Precision Space Gyroscope, which uses the same critical quartz components — high-Q resonator and inner electrode assembly — employed in Northrop Grumman’s proven hemispherical resonator gyroscope (HRG) technology. The HRG has achieved more than 70 million error-free hours in space missions.

A single LR-450 can take the place of two RLG IMUs, optimizing SWaP-C for a typical 15-year mission.