The A5700 high-precision MEMS heading and attitude reference system (AHRS) is a highly reliable and cost-effective six-axis MEMS inertial system for heading and attitude measurement, widely applicable in navigation, control, and measurement applications such as satellites, vehicles, ships, and drones. The A5700 series integration a high-performance MEMS gyroscope and MEMS accelerometer within a single integrated structure, with comprehensive compensation for temperature-dependent parameter zero points, scale factors, non-orthogonal errors, and acceleration-related terms, ensuring sustained high measurement accuracy. The system outputs attitude information through navigation calculations based on the angular motion of the three-axis MEMS gyroscope sensor and the linear acceleration measured by the three-axis MEMS accelerometer sensor.
零件编号 :
A5500订单（最小起订量） :
1Product Series and Parameters
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Parameters |
Technical indicators |
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Gyroscope |
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Measuring range（°/s） |
±400 |
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Full temperature zero bias（°/h，1σ） |
≤2 |
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Zero bias stability（°/h，10s smooth） |
≤0.5 |
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Zero bias instability（°/h，allan，typ） |
≤0.05 |
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Zero bias repeatability（°/h） |
≤0.3 |
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Angle random walk （°/√h） |
≤0.05 |
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Scale factor nonlinearity（ppm） |
≤100 |
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Cross-coupling（rad） |
≤0.001 |
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Bandwidth（Hz） |
≥200 |
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Accelerometer |
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Measuring range（°/s） |
±20 |
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Full temperature zero bias（mg，1σ） |
≤1 |
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Zero bias stability（μg，10s smooth） |
≤100 |
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Zero bias instability（μg，allan，typ） |
≤30 |
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Zero bias repeatability（μg） |
≤100 |
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Velocity random walk （mm/s/√h） |
≤30 |
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Scale factor nonlinearity（ppm） |
≤500 |
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Cross-coupling（rad） |
≤0.001 |
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Bandwidth（Hz） |
≥200 |
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Aerial Positioning Accuracy |
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Pitch angle measurement range (°) |
±90 |
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Roll angle measurement range (°) |
±180 |
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Horizontal attitude accuracy (°, RMS, without satellite assistance) |
Steady state ≤0.05; Low dynamic range ≤0.5; |
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Heading drift accuracy (10 min, °) |
≤0.5 |
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Electrical/Mechanical Interface |
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Power supply（V） |
5~12 |
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Steady-state power(W) |
≤1.5 |
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Startup time（s） |
≤2 |
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Communication interface |
1 RS-422 port, 2 RS-232 ports, 1 synchronous TTL output, 1 synchronous TTL input |
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Update rate（Hz，max） |
2000 |
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Size（mm×mm×mm） |
44.8×38.6×21.5 |
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Weight（g） |
≤60 |
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Operating Environment |
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Operating temperature（℃） |
-40~85 |
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Storage temperature（℃） |
-55~85 |
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Vibration（g，RMS） |
20~2000Hz，6.06 |
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Shock (g, half-sine wave) |
500/1ms |
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Production process
Product dimension
Application Scenarios
A5500系列是一款IMU/VRU/AHRS传感器，由高性能MEMS-IMU、磁力计和增强型单轴陀螺仪组成。它配备了自主研发的自适应扩展卡尔曼滤波器、IMU噪声动态分析算法和载体运动状态分析算法，能够在高动态条件下满足姿态角精度要求，并降低航向角漂移。每台传感器在出厂前都经过精细补偿，包括温度补偿、零点偏差补偿、比例因子补偿和交叉轴补偿。
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