基于正余弦旋转变压器的襟缝翼角位移传感器信号处理技术研究  

Research of Signal Processing Technology of Flap and Slat Angle Transducer Based on Sine and Cosine Rotating Transformer

作　　者：韩建辉 张军红 杜永良 Han Jianhui;Zhang Junhong;Du Yongliang(AVIC The First Aircraft Institutes,Xi’an 710089,China)

机构地区：[1]航空工业第一飞机设计研究院,陕西西安710089

出　　处：《航空科学技术》2023年第3期82-88,共7页Aeronautical Science & Technology

摘　　要：大型飞机襟缝翼角位移传感器的交流信号在经过长距离传输后产生电压幅值升高的现象,导致角度测量超差的问题。本文提出了采用正余弦传感器利用信号解调技术解决该问题的方法,论述了正余弦传感器和AD2S1210解调芯片的解调原理,设计了正余弦传感器的监控方法、AD2S1210的外围接口电路及FPGA的配置和时序控制方法。该设计方案已应用于某大型飞机的襟缝翼控制器计算机,良好的试验测试结果证明了该方法可以解决传感器交流信号长距离传输带来的测量超差问题。该研究可以应用于大型飞机的角度及线位移测量领域,对于提升大型飞机传感器的测量精度具有重要意义。同时,针对AD2S1210解调芯片供应链的不稳定性设计了国产化的旋转变压器传感器的激励电路原理,正弦、余弦输入信号的解调及监控方法原理作为备用方案。The AC signal of the large airplane flap angular displacement sensor increases the voltage amplitude after long-distance transmission, which causes the problem of angle measurement error. In this paper, a method to solve this problem by using sine-cosine sensor and signal demodulation technology is presented. The demodulation principle of rotating transformer and AD2S1210 demodulation chip is discussed. The monitoring method of rotating transformer, the peripheral interface circuit of AD2S1210, and the configuration and timing control method of the GA are designed. The design scheme has been applied to a large airplane’s flap controller computer. Good test results show that the method can solve the measurement overrun caused by long distance transmission of sensor AC signals. This research can be applied to the angle and line displacement measurement of large aircraft, and it is important to improve the measurement accuracy of sensor of large aircraft. At the same time, the excitation circuit principle of the domestic rotator sensor is designed for the instability of the supply chain of AD2S1210 demodulation chip. The demodulation and monitoring method principle of sine and cosine input signals are used as the alternative scheme.

关 键 词：正余弦旋转变压器 AD2S1210 传感器信号处理 传感器监控 

分 类 号：V249.11[航空宇航科学与技术—飞行器设计]