AHRS MEMS accelerometers / (AHRS)加姿態航向參考系統,MEMS加速度計






Guided ammunition / 制導彈藥
Accelerometer for missile guiding systems / 加速度導彈導向系統
Dynamic GPS tracking systems / 動態GPS跟踪系統
Dynamic platform stabilization / 動態平台穩定
Ground motion detection / 地面運動檢測
AHRS MEMS accelerometers / (AHRS)加姿態航向參考系統,MEMS加速度計
Inertial Navigation Systems / 慣性導航系統
Helicopter Attitude, Heading and Reference System (AHRS) / 直升機姿態,航向參考系統(AHRS)
Active Suspension Systems / 主動懸掛系統
Active Tilting Systems / 主動傾斜系統
Bogie Monitoring Systems / 轉向架監測系統
Train Positioning Systems / 列車定位系統
Wind Turbines / 風力發電機
Drilling sensor / 鑽孔傳感器
Static Antenna Stabilization / 靜態天線穩定
Automotive testing accelerometer / 汽車加速度檢測
Machine Health Monitoring (MHM) / 機器健康監測
Structural Health Monitoring (SHM) / 結構健康監測
Inclination monitoring / 傾斜角監控
Seismic Detection / 地震探測

AHRS MEMS accelerometers / (AHRS)加姿態航向參考系統,MEMS加速度計

Attitude and Heading Reference Systems (AHRS) are multi-axis sensors which use inertial navigation in order to calculate the position and velocity of an aircraft, namely heading, altitude and yaw. These sensors replace mechanical gyroscopic flight instruments, providing superior reliability and accuracy, featuring solid-state or MEMS gyrometer, accelerometers and magnetometers on all three axes. AHRS sensors are often faulty in terms of gyro bias drifts, requiring a filter structure and independent measurements from accelerometers in order to keep an aircraft on its true trajectory. As such, the role of an accelerometer in an AHRS application is to provide the initial altitude reference and on-flight corrections required to correct gyro drifts.



Accelerometers for AHRS applications

High-accuracy AHRS accelerometers are used in order to prevent the large wings of the aircraft from colliding with the ground during take-off and landing. This type of application calls for accelerometers with a bias stability higher than 2 mg in temperature range, linearity, second order effects and axis misalignment.
Lower classes of AHRS are used to provide assistance to pilots or as backup systems. They are often encountered in small civilian airplanes and UAVs. In these cases, MEMS accelerometers provide an ideal solution.


The MEMS Revolution

MEMS accelerometers provide exceptional levels of performance in terms of long-term stability, temperature stability and accuracy and are able to function successfully under harsh conditions. However, it’s important to note that different applications call for MEMS accelerometers with different ranges. As such, high-end and medium AHRS performance usually requires accelerometers with a range of 10g to 30g, while lower-end solutions can make do with 5g sensors.


Colibrys accelerometers for AHRS applications

Colibrys manufactures the following products for AHRS applications. It’s important to note that they come with acceleration ranges of 2g, 5g, 10g and 30g.


  • MS9000 family – MEMS accelerometers offering a the best compromise for Bias stability overall performances and cost effective. Product has been certified FAA/EASA  DAL A by customers.


上次更新日期: 2022年08月03日。