试验机环境振动测试技术研究  

Research of environment vibration test technology on testing aircraft

作　　者：朱丽[1] 王小辉 ZHU Li;WANG Xiao-hui(China Flight Test Establishment,Xi＇an 710089,China;School of Aeronautics and Astronautics,Shanghai Jiao Tong University,Shanghai 200240,China;Xi＇an Aircraft Institute of Aviation Industry Corporation of China,Xi＇an 710089,China)

机构地区：[1]中国飞行试验研究院,陕西西安710089 [2]上海交通大学航空航天学院,上海200240 [3]中国航空工业集团公司西安飞机设计研究所,陕西西安710089

出　　处：《电子设计工程》2018年第9期91-94,100,共5页Electronic Design Engineering

摘　　要：试验机环境振动测试是试飞测试中重要的一部分。针对某型机目前使用的环境振动测试方案超差的现象,深入分析电荷式压电传感器和电压式压电传感器的测试原理,通过推导两种传感器电路的输出电压,得出输出与传输电缆长度有关,并推导出相对误差公式,通过试验对3种环振测试方案与传输电缆的关系进行量化。结果表明,相同的传输长度电压式压电传感器的频响误差为2%左右,而电荷式压电传感器在传输电缆不超过6 m时能满足频响误差为3%的试飞要求。The environment vibration test is an important part of flight test. In view of the phenomenon of a certain type of aircraft is using environmental vibration test ultra difference,in-depth analysis of the charge type piezoelectric sensor and voltage type piezoelectric sensor,through two kinds of sensor output voltage of the circuit are derived,output and transmission cable length,and relative error formula is deduced,through the test of three type vibration test schemes and to quantify the relationship of transmission cables. Results show that the length of the same transmission voltage type piezoelectric sensors of the frequency response error is about 2%,and the charge type piezoelectric sensors in no more than 6 m transmission cables can satisfy the requirement of flight of a frequency response error of 3%.

关 键 词：环境振动 压电传感器 传输电缆 频响误差 

分 类 号：TN709[电子电信—电路与系统]