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Sigma D4G FOG IMU
Sigma D4G FOG IMU – High-Precision Navigation Module for UAV and Robotics Applications
The Sigma D4G FOG IMU is a cutting-edge flight controller accessory that delivers unmatched accuracy in navigation and inertial measurement for UAVs, autonomous vehicles, and robotics systems. Engineered with a fiber optic gyroscope (FOG) and enhanced GNSS RTK positioning, this module ensures rock-solid stability, real-time responsiveness, and centimeter-level accuracy even in challenging environments.
Key Features:
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Ultra-precise orientation: 0.05° roll/lean accuracy, 0.1° absolute course with 2m baseline
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High-accuracy positioning: Single-point: 1.5m H / 2.0m V | RTK: 0.8cm + 1ppm H / 1.5cm + 1ppm V
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Reliable velocity tracking: Up to 0.03 m/s accuracy with RTK
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Rapid GNSS acquisition: 1s warm start, with 20ns timed accuracy
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Robust IMU output: Data rates up to 1000Hz for high-frequency control loops
Designed with versatile communication ports (RS232, RS422, CAN, USB) and multi-protocol support (FDILink, NMEA 0183/2000, RTCM, Simrad), the Sigma D4G ensures seamless integration with modern autopilot systems. Its rugged IP5X-rated casing and wide operating temperature range (-40°C to 85°C) make it a reliable choice for both aerial and ground operations.
Compact and power-efficient, the D4G runs on 8–48V input and consumes just 2.5W, making it ideal for mission-critical systems where performance and efficiency matter.
Optimize your UAV navigation performance with the Sigma D4G – a professional-grade IMU built for precision, durability, and fast data fusion.
Browse more flight controller accessories at Motionew’s UAV navigation systems to enhance your drone’s flight stability and control.
Sigma D4G FOG IMU – FAQ
1. What is the main function and design of the Sigma D4G FOG IMU?
The Sigma D4G FOG IMU is a high-precision inertial measurement unit that combines a fiber optic gyroscope (FOG) with advanced GNSS RTK positioning. It provides centimeter-level accuracy and ultra-stable navigation for UAVs, autonomous vehicles, and robotic systems.
2. What are the core performance specifications?
It offers 0.05° roll/pitch accuracy, 0.1° heading accuracy (with 2m baseline), and 1.5m/2.0m horizontal and vertical single-point accuracy. In RTK mode, it achieves 0.8cm + 1ppm (H) and 1.5cm + 1ppm (V) accuracy with velocity precision up to 0.03 m/s.
3. What communication and interface options are available?
The Sigma D4G supports RS232, RS422, CAN, and USB interfaces and multiple communication protocols including FDILink, NMEA 0183/2000, RTCM, and Simrad, ensuring broad compatibility with modern autopilot systems.
4. What are the purchasing and delivery options for the Sigma D4G IMU?
The module is sold as a standalone high-precision navigation accessory. Motionew provides worldwide shipping with tracking and estimated delivery times displayed during checkout.
5. Does Motionew support OEM and bulk purchasing for this model?
Yes. OEM and volume purchasing options are available for UAV developers, robotics manufacturers, and research organizations. Buyers can request customized interface configurations and volume-based pricing through Motionew’s sales department.
6. What documentation and support resources are provided?
User manuals, specifications, and integration guides are included in the documentation section. Firmware updates, configuration software, and technical support are available through Motionew’s engineering support team.
Specifications
| NAVIGATION | |
| Leaning/Rolling | 0.05° |
| Relative course’ (locked 10s) | 0.1° |
| Absolute course | 0.1 ° / 2m baseline |
| Horizontal position | Single point: 1.5m | RTK: 0.8cm + 1ppm |
| Vertical position | Single point: 2.0 m | RTK: 1.5cm + 1 ppm |
| Speed accuracy | Single point:0.1 m/s | RTK:0.03 m/s |
| Navigation data output frequency | 500 Hz, 1000 Hz (IMU data) |
| Warm start | 1s |
| Position extrapolation accuracy | 0.1 % or 0.05 m |
| Timed accuracy | 20 ns |
| Specifications | |
| Ports | RS232*2, RS422*1 (up921600bps) , CAN*1 (1M) , USB*1 (blackbox) , SYNC*1 (1PPS), GPIO*2 |
| Interface & Antenna | |
| Protocol | FDILink, NMEA 0183 / NMEA 2000(CAN), Simrad,RTCM / INTRIP |
| Working environment | Protect: IP5X
Operating temperature: :-40°C ~ 85°C |
| Size | 115 × 69 × 27 mm |
| Weight | 200g |
| Voltage | 8-48V@ Instantaneous load capacity ≥1A |
| Power consumption | 2.5W |
Product contents
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Documents
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