Attitude and Heading Reference System
The Attitude and Heading Reference System (AHRS) series provides precise attitude, heading, and motion data for dynamic platforms. Designed for high stability and easy system integration, the series combines multi-sensor fusion, temperature compensation, and robust environmental adaptability to support navigation, control, and positioning across a wide range of applications.
The DTMTi-300 is a high-performance AHRS capable of capturing high-frequency dynamic attitudes with excellent stability. It integrates a vibration-resistant gyroscope to maintain high-quality inertial data even in harsh environments, and supports temperature compensation, high-frequency output, and third-party synchronization. Fully compatible with the DTMTi-100 series SDK, drivers, and source code, it offers a smooth integration path for advanced navigation systems.
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| Type Number | DTMTi-300 |
| Sensor Performance | |
| Longitudinal tilt, transverse roll | 0.2° |
| Heading Angle | 1° |
| Jielian System | Yes |
| Magnetic Sensor | |
| Full scale | +/-8G |
| All RMS noise | 0.5mG |
| Nonlinearity | 0.2% |
| Resolution | 0.25mG |
| Gyroscope | |
| Full scale | 450°/s |
| Zero-bias stability | 10°/h |
| Bandwidth | 415Hz |
| Noise density | 0.01°/s/√Hz |
| Influence of heavy acceleration | 0.003°/s/g |
| Electrical Performance | |
| Input voltage | 3.3V, 4.5V–34V |
| Power consumption | 520mW |
| Accelerometer | |
| Full scale | 20g |
| Zero-bias stability | 15μg |
| Bandwidth | 375Hz |
| Noise density | 60μg/√Hz |
The DTMTi-670G is a compact IP68-rated GNSS/INS module with support for an external GNSS receiver, providing sub-meter positioning and reliable motion tracking. Easy to integrate and designed for tough environments, it offers a simple, high-precision solution for systems requiring both inertial attitude data and accurate global positioning.
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|---|---|
| Type Number | DTMTi-670G |
| IMU Performance | |
| Longitudinal tilt, transverse roll | 0.2° |
| Heading Angle | 0.8° |
| Position | <1m |
| Speed | 0.05m/s |
| Magnetic Sensor | |
| Full scale | Full scale |
| All RMS noise | 1mG |
| Nonlinearity | 0.2% |
| Resolution | 0.25mG |
| Gyroscope | |
| Full scale | 2000°/s |
| Zero-bias stability | 8º/h |
| Bandwidth | 520Hz |
| Noise density | 0.007º/s/√Hz |
| Influence of gravity acceleration | 0.001º/s/g |
| GNSS Receiver | |
| Brand | u-blox |
| Model | ZED F9 |
| RTCM input interface | / |
| Accelerometer | |
| Full scale | 10g |
| Zero-bias stability | 10(x,y)15(z) μg |
| Bandwidth | 500Hz |
| Noise density | 60μg/√Hz |