Micro Magic, a developer of high-precision inertial sensing solutions, has introduced three new Ring Laser Gyroscope (RLG) models, the G-R90, G-R70, and G-R50, designed for high-precision Inertial Navigation Systems (INS) and unmanned platforms.
The new RLG series combines a proven solid-state design with advanced manufacturing and temperature compensation technologies to deliver stability, reliability, and flexibility. This series aims to meet diverse performance and Size-Weight-Power (SWaP) requirements across commercial, industrial, and defense applications.
All three models utilize the optical Sagnac effect to measure angular velocity in real time, eliminating moving parts to enhance durability and service life.
Key features
- Rapid Startup: High-voltage starter control enables full activation in under five seconds, allowing quick system deployment for time-sensitive operations.
- Robust Environmental Tolerance: Solid-state construction provides strong resistance to shock, vibration, and temperature extremes (-40°C to +70°C).
- Seamless Integration: Standard RS422 interface (115200 bps) supports Regular Mode (100 Hz continuous data output) and Test Mode (1 Hz with read/write access), enabling straightforward integration within INS and control systems.
- Mechanical Flexibility: Customizable mounts (3×M5 for G-R90; 4×M3 for G-R70/G-R50) and expandable electrical pins via J30JM-25ZKP37L connectors provide versatile installation options across a wide range of platforms.
G-R90
The G-R90 is the flagship model, offering ultra-high precision for critical INS applications in aerospace, geospatial mapping, and defense platforms. It features zero bias stability of ≤0.002 °/h (1σ) and zero bias repeatability of ≤0.002 °/h (1σ).
The model’s stable scale factor (error ≤5 ppm) and temperature compensation technology minimize drift in extreme environments, while its wide operating temperature range (-40~+70℃) and solid-state architecture ensure shock and vibration resistance.
The G-R90 weighs 1750±50 g (147×125×57mm), consumes less than 4 W of power, and supports a maximum input angular rate of ±400 °/s with a fast startup time of ≤5 s, making it ideal for systems where absolute precision is critical.
G-R70
The G-R70 is engineered to balance precision and practicality for mid-tier INS and unmanned vehicles. It features zero bias stability of ≤0.004 °/h (1σ) and a fixed scale factor of 3.422 arc-second/pulse (scale factor error ≤10 ppm).
The G-R70 offers a higher maximum input angular rate of ±800 °/s and flexible shaking frequency bands (520~550, 570~600, 640~670 Hz), adapting effectively to dynamic motion scenarios.
It weighs 950±15 g (102×93×54mm) and consumes less than 5 W of power, making it suitable for integrated systems that demand accuracy and moderate SWaP, such as platform stabilization and autonomous logistics.
G-R50
The G-R50 is the SWaP-optimized option, weighing 380±15 g (72×72×48.1mm). Despite its compact form, it maintains zero bias stability of ≤0.007 °/h (1σ) and shares the G-R70’s scale factor and maximum input angular rate.
With shaking frequency bands of 550~570, 620~650, and 690~720 Hz, and a power draw of less than 5 W, the G-R50 is intended for small drone (sUAVs), Autonomous Underwater Vehicles (AUVs), and portable survey equipment.
Industry Applications
The new RLG series is designed to meet the needs of multiple industries, including defense and aerospace for high-precision INS in military UAVs and guided systems; autonomous transportation for navigation in self-driving trucks and logistics robots; and environmental and survey applications for geospatial mapping and offshore AUV inspections.
It also supports industrial stabilization by providing precise motion sensing for camera and sensor systems on aerial, marine, and construction platforms
