Low cost Dynamic 3D Digital Compass Sensor, 0.8° Heading Accuracy
DDM350B&DDM360B HIGH ACCURACY DYNAMIC 3D DIGITAL C...
▶ PRODUCT DESCRIPTION
DDM350B / DDM360B is a three-dimensional dynamic electronic compass, which integrates a 9-axis inertial measurement unit, including a three-axis accelerometer, a three-axis gyroscope, and a three-axis fluxgate. Utilizing the high dynamic angle characteristics of the gyroscope and the highly stable attitude characteristics of the accelerometer, the pitch and roll angles that follow the complex attitude changes are obtained through the dynamic inertial navigation algorithm. The geomagnetic azimuth angle adopts hard magnetic and soft magnetic calibration algorithms, so that the compass can eliminate the influence of the magnetic field through the calibration algorithm even in the environment with magnetic field interference. The heading is calculated in real time by the central processor, and the dynamic pitch and roll angles are used for dynamic heading compensation for a wide range of magnetic azimuths, ensuring that the compass can provide high-precision heading data even at tilt angles of up to ±85°. The electronic compass integrates a high-level DSP arithmetic processor with diversified output modes. The standard interfaces include RS232/RS485/TTL and other interfaces, and other communication interfaces can be customized.
DDM350B / DDM360B is small and low power consumpting. It can be used in marine vessels, antennas and satellites, commercial drones, and many other high-vibration, extremely harsh environments. It is more suitable for today's various high-precision measurement integrated control systems.
▶ MAIN FEATURES
★ Inclination angle measurement range: pitch ±85°, roll angle ±180°
★ With hard magnetic, soft magnetic and tilt angle compensation
★ Standard RS232/RS485/TTL output interface
★ Azimuth angle accuracy: 0.8°
★ Inclination resolution: 0.1°
★ Inclination accuracy: 0.2°
★ Wide temp. range: -40℃～+85℃
★ Dimesion: L55×W37×H24mm
★ DC 5V power supply
★ IP67 waterproof rating
Electrical Characteristics
| DDM350B/DCM360B Parameter |
||
| Compass heading | Heading accuracy | 0.8° |
| Resolution | 0.1° | |
| Pitch range | ±90° | |
| Roll range | ±180° | |
| Inclination accuracy | Static state 0.2° | |
| Dynamic 0.5° | ||
| Resolution | 0.1° | |
| Tilt compensation angle range | Roll ±180° | |
| Pitch ＜85° | ||
| Calibration | Hard iron calibration | yes |
| Soft iron calibration | yes | |
| Magnetic field interference calibration method | One rotation of the plane (two-dimensional calibration) | |
| Physical feature | Size | Shell size:L55×W37×H24mm |
| PCBA size: L33×W27×H9mm | ||
|
RS232/RS485/TTL Interface connection line |
Shell : 4PIN 1m direct lead | |
| Single-board : 4 PIN 30cm terminal wire | ||
| Interface | Startup delay | <50ms |
| Output rate | 20Hz/s | |
| Baud rate | 2400 to 115200baud | |
| Output format | Binary high performance protocol | |
| Power | Supply voltage | (Default) DC +5V |
| (Customized) DC 9～36V | ||
| Current (MAX) | 45mA | |
| Ideal model | 35mA | |
| Sleep mode | TBD | |
| Environment | Operating range | -40℃～+85℃ |
| Storage temperature | -40℃～+85℃ | |
| Vibration resistance | 2500g | |
| EMC | According to EN61000 and GBT17626 | |
| MTBF | ≥98000 hours/time | |
| Insulation resistance | ≥100 megohm | |
| Impact resistance | 100g@11ms,3 Axial Direction (Half Sinusoid) | |
| Anti-vibration | 10grms,10～1000Hz | |
| Weight | Single board: ≤25g ≤135g (including 1 meter cable) | |
