Heading Sensor for Underwater Vehicle Gyro Compensated

DDM360 Dynamic Compass Sensor

▶ 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

▶ APPLICATION

Satellite antenna search

Marine surveying and mapping

GPS integrated navigation

Antenna servo control

Infrared imager

Laser rangefinder

ROV underwater robot navigation

Special occasion robot

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, and many other high-vibration, extremely harsh environments. It is

more suitable for today's various high-precision measurement integrated control systems.