高旋制导弹药转速测量装置及方法研究  

Research on rotating speed measuring device and method of high rotation ammunition

作　　者：刘福朝 李存健[1] 刘宁 赵辉[1,2] 王桂奇[1] Liu Fuchao;Li Cunjian;Liu Ning;Zhao Hui;Wang Guiqi(School of Automation,Beijing Information Science&Technology University,Beijing 100192,China;Beijing Key Laboratory of High Dynamic Navigation Technology,University of Beijing Information Science&Technology,Beijing 1oo101,China)

机构地区：[1]北京信息科技大学自动化学院,北京100192 [2]北京信息科技大学高动态导航技术北京市重点实验室,北京100101

出　　处：《电子测量技术》2023年第11期37-41,共5页Electronic Measurement Technology

基　　金：北京市自然科学基金(4214071,4212003);国家重点研发计划课题(2020YFC1511702)项目资助。

摘　　要：针对高旋制导弹药高转速难以精确测量问题,设计了一种基于地磁传感器的转速测量装置,测量装置主要采用了HMC1053三轴地磁传感器和STM32H753 ARM芯片来完成转速测量功能。根据地磁传感器输出信号特性,利用过零点检测方法对转速信号的时域特性进行了仿真和分析,分别采用短时傅里叶变换和连续小波变换方法对转速信息的时频特性进行了仿真分析和对比,结果表明采用连续小波变换方法得到的频率分辨率更高,求解的转速精度更高。最后通过机床转速试验及弹载飞行试验进行验证,机床转速试验解算的转速最大误差为0.011 3 r/s,试验结果表明了转速测量方法的可行性,为高旋制导弹药的导航和制导技术提供相关的支持,具有一定的工程应用价值。Aiming at the problem that it is difficult to accurately measure the high rotational speed of high rotation ammunition,a speed measuring device based on geomagnetic sensor is designed.The measurement device mainly uses HMC1053 three-axis geomagnetic sensor and STM32H753 ARM chip to complete the speed measurement function.According to the characteristics of the output signal of the geomagnetic sensor,the time-domain characteristics of the rotational speed signal are simulated and analyzed by using the zero-crossing detection method,and the time-frequency characteristics of the rotational speed information are also simulated and analyzed by using the short-time Fourier transform and continuous wavelet transform methods.The results show that the continuous wavelet transform method has higher frequency resolution and higher rotational speed precision.Finally,the machine speed test and missile-borne flight test are carried out to verify that the maximum error of the machine speed test is O.oll 3 r/s.The test results show that the speed measurement method is feasible,which provides relevant support for the navigation and guidance technology of high rotation ammunition and has certain engineering application value.

关 键 词：高旋制导弹药 地磁传感器 转速测量 时频分析 

分 类 号：TP29[自动化与计算机技术—检测技术与自动化装置]