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为减缓阵风或紊流对飞机的扰动,提高飞行控制精度,设计了一种基于微机电加速度计实时测量机翼弹性变形量的测量装置。对测量原理进行了介绍,给出了系统的硬件设计方法和软件流程。该装置的采样频率为200 Hz,能够同时完成12路加速度信号的采样和数据实时存储。结果表明测量弯曲角度误差在0.8°以内,满足阵风载荷减缓主动控制系统的使用要求,验证了设计的合理性。
In order to reduce the disturbance of the gust or turbulence to the aircraft and improve the flight control accuracy, a measuring device for real-time measurement of the elastic deformation of the wing based on the MEMS accelerometer was designed. The measurement principle is introduced, and the system hardware design method and software flow are given. The device has a sampling frequency of 200 Hz and can sample and store up to 12 accelerometer signals in real time. The results show that the error of measuring bending angle is less than 0.8 °, which meets the requirements of active control system of gust load mitigation and validates the rationality of design.