IntroductionUnmanned vehicles are performing progressively more complex tasks-and requiring increasingly robust and accurate heading and orientation information. But existing AHRS modules leave too much room for error. They lose heading when encountering magnetic distortion; they suffer from errors when experiencing erratic motion; and often don’t provide accurate headings, even in a static environment. And at more than $2000 for a MEMS-based AHRS, it’s no wonder AHRS have only been integrated by a select few customers. So when there’s no room for error, HEC395 stays on track.The new HEC395 AHRS provides unparalleled heading accuracy when static, while moving and when encountering magnetic distortion. HEC395 employs a patented Kalman filtering algorithm that intelligently fuses Magnetic Sensors with gyros and accelerometers to overcome errors due to erratic motion and changes in the local magnetic field.And HEC395 is priced for commercial use — delivering more reliable heading than AHRS modules that cost twice as much.Features1. High Accuracy: 0.3-0.5°2. RS232/RS485/TTL Optional; Modbus Optional3. Widely working temperature: -40℃~+85℃4. Small size: L60*59*29mm5. Low power consumption6. Hard and soft iron correction with quality of calibration score7. User calibration proceduresPart of Applications1. Machine Equipment2. Solar tracking3. Bridge Monitoring4. Building Monitoring5. Excavation Tilt Monitoring6. Vehicle7. Slope Monitoring8. Construction Machinery9. Platform Leveling10. Tower Crane11. Lifting Machinery12. Pole Tilt Monitoring13. Ship14. Agricultural Machinery15. Medical Devices16. UAV17. Antenna Adjustment18. Robot
Performance Specifications | ||||||||||
Parameters | Typical | Units | ||||||||
Heading accuracy (static, compass mode) | 0.3° | Deg RMS | ||||||||
Heading accuracy (dynamic motion or magnetic transient ) | 2° | |||||||||
Resolution | 0.01° | |||||||||
Max Dip Angle | 85° | Deg | ||||||||
Magnetometer Specifications | ||||||||||
Parameters | Typical | Units | ||||||||
Calibrated Field Measurement Range | ± 1.5 | Gauss | ||||||||
Magnetic Resolution | ± 0.5 | mGauss | ||||||||
Tilt Specifications | ||||||||||
Parameters | Typical | Units | ||||||||
Pitch Accuracy | 2° | Deg RMS | ||||||||
Roll Accuracy | 2° | Deg RMS | ||||||||
Tilt Range | All-attitude | Deg | ||||||||
Tilt Resolution | <0.01° | |||||||||
Calibration | ||||||||||
Parameters | Typical | Units | ||||||||
Hard Iron Calibration | Yes | |||||||||
Soft Iron Calibration | Yes | |||||||||
Mechanical Specifications | ||||||||||
Parameters | Typical | Units | ||||||||
Dimensions (L x W x H) | 60*59*29 | mm | ||||||||
Weight | 140 | g | ||||||||
Mounting Options | Screw mounts/standoffs; horizontal | |||||||||
Connector for RS-232 (RS485 and TTL available) | 5-pin | |||||||||
I/O Specifications | ||||||||||
Parameters | Typical | Units | ||||||||
Latency from Power-On | < 50 | mSec | ||||||||
Maximum Sample Rate | 50 | samples/sec | ||||||||
Communication Rate | 2400 to 115200 | baud | ||||||||
Output Formats | Binary and NMEA0183 | |||||||||
Power Specifications | ||||||||||
Parameters | Typical | Units | ||||||||
Supply Voltage | 5V | VDC | ||||||||
Current Draw(Continuous Output) | Max | 40 | mA | |||||||
TYP | 30 | |||||||||
Environmental Specifications | ||||||||||
Parameters | Typical | Units | ||||||||
X Operating Temperature | – 40 to85 | °C | ||||||||
Storage Temperature | – 40 to125 | °C | ||||||||
Shock | 3000 | G | ||||||||
Vibration | Z-Axis, Skewed Block, at 1, 2 & 4 G rms @ 10±1000 KHz for 30 min | |||||||||
Humidity | 70°C with 95% R.H .for 168 hrs. |