MF307EX– HIGH-PRECISION GYRO-BASED TRUE NORTH FINDER EMBEDDED CONTROL
1. Product Introduction
Gyro North Finder is a high-precision autonomous orientation device designed to rapidly determine true north direction without external references. By measuring the Earth's rotational angular velocity through a sensitive gyroscope, it calculates the azimuth angle between the device's axis and geographic north, providing real-time heading data for carriers (e.g., vehicles, drones, or military systems).
Key Advantages:
- Autonomous Operation: No dependency on GNSS or magnetic fields.
- High Accuracy: Compensates for environmental interference via multi-sensor fusion.
- Rapid Alignment: Achieves north-seeking within minutes (specific time customizable).
2. Product Composition
As a compact electro-mechanical integrated system, the device includes:
| Component | Function |
| High-performance Gyro | Detects Earth's rotation rate (e.g., fiber optic/MEMS gyro for <0.1° accuracy). |
| Accelerometer | Measures tilt angles to correct horizontal alignment errors. |
| Servo Rotation Module | Precisely controls mechanical rotation to optimize signal collection. |
| Embedded Computer | Processes sensor data with Kalman filtering for real-time azimuth output. |
Optional Upgrades:
- GNSS/INS integration for enhanced navigation.
- Environmental shielding (temperature/vibration resistance).
Technical Parameters:
| Parameters | MF307EX |
| North seeking time | 3 min / 2 min (adjustable) |
| Range of tilt angles over which north can be found | ±15° |
| North seeking accuracy(1σ) | 0.5° |
| Maintain heading (Zero bias stability 10s 1σ) | 3°/h |
| Power supply | 9.5~36VDC (Attention: diameter of power supply line > 0.3mm2, power line and ground wire) |
| Operating current | Typical value: 0.5 A, maximum impact current: 1 A |
| Interface | TTL/RS232/RS422/RS485 optional |
| Operating temperature | -20℃~+50℃ |
| Storage temperature | -40℃~+60℃ |
| Hot and humid environmental conditions | Relative humidity less than 95% |
| How it works | Automatic self-check is started after power on, automatic north seeking is performed after the self-check is successful, and a north seeking result is sent to the upper computer after the north seeking is completed. |
| Insulation resistance | The insulation resistance between the independent circuits of the gyro north finder and between the circuit and the shell shall not be less than 10 MΩ under standard atmospheric conditions. |
| MTBF | ≥ 10000 hours |
| MTTR | ≤30min |
| Material | Stainless steel + aluminum alloy |
| Weight | ≤ 1.1 kg (excluding cable) |
COMPLETENESS REQUIREMENTS:
The complete set of equipment includes:
| Product name | Quantity | Weight |
| gyroscope north finder | 1 | ≤1.1kg |
| Aviation plug cable (1m) | 1 | ≤160g |
