【摘要】 尾旋是飞机在失去控制后的一种极危险的飞行状态,陷入尾旋极易造成飞机的坠毁,在飞机研制过程中为了提高其机动性及抗尾旋能力,必须对这种极限飞行状态进行研究;在立式风洞中开展尾旋试验是目前效率最高,安全性最有保障的技术手段;试验测试的主要参数是飞机在尾旋及改出过程中的姿态角(包括俯仰角、偏航角和滚转角);在此简要介绍了通过陀螺仪、加速度计和地磁计进行姿态数据融合的算法,以及采用了一种MEMS传感器进行尾旋姿态测量的试验技术,并且其姿态数据可由Zigbee无线数据模块实时传送到测量计算机;通过试验验证,该技术简单有效,不受现场环境限制,系统动态性能稳定可靠,角度测试精度优于1°,满足了试验需求,提高了试验效率及数据质量。更多还原

【Abstract】 Spin is a kind of dangerous flight state when aircraft loses control,and it can easily cause flight accident.In order to improve flexibility and anti—spin capability in aircraft development process,the limit flight state must be studied.It is the most efficient and safe technology to carry out spin test in vertical wind tunnel.The required test parameter is a attitude angle(including pitch,yaw and roll).It briefly introduces the algorithm of attitude data fusion algorithm by gyro,accelerometer and magnetometer,and adopts a MEMS sensor to measure the spin attitude.The test data is transmitted to computer by Zigbee wireless module.The test proves,the technology is simple and effective,and is not limited by the environment of the scene,dynamic performance of the system is stable and reliable,angle measurement accuracy is better than 1° to meet the test requirements,improves the test efficiency and data quality.更多还原