跨飞行器金属舱壁无线无源烧损传感技术  

Wireless passive burning-loss sensing technology across aircraft metal bulkheads

作　　者：郭云冲 谢楷 宋江文 吴必成 谷恺恒 李期 权磊 GUO Yunchong;XIE Kai;SONG Jiangwen;WU Bicheng;GU Kaiheng;LI Qi;QUAN Lei(Xidian University,School of Aerospace Science and Technology,Xi’an 710126,China)

机构地区：[1]西安电子科技大学空间科学与技术学院,西安710126

出　　处：《遥测遥控》2021年第3期72-76,共5页Journal of Telemetry,Tracking and Command

基　　金：国家自然科学基金(61771370)。

摘　　要：无线无源传感技术作为适应恶劣工作环境的重要手段,在飞行器防热层烧损监测应用中仍然面临无源信息无法跨越金属机体的困难。提出一种基于声学能量耦合与电路熔断相结合的防热层烧损无源监测新方法。阐述了该方法的原理、实现方案,并对跨越金属介质获得防热层内埋熔丝状态信息的关键原理进行了实验验证,结果表明该方法能有效穿透典型厚度铝合金舱壁,在25℃–85℃的温度范围内均可有效辨识检测信号的变化,并且能有效避免强震动环境影响。方法避免了对金属机体结构件的开孔和破坏,可用于对高速飞行器、再入航天器和新一代空天往返运输系统防热层的在线健康监测。As an important means to adapt to the harsh working environment, wireless passive sensing technology still faces the difficulty that passive information can not cross the metal body in the application of burning-loss monitoring for aircraft heat-insulating layer. This paper proposes a new passive monitoring method based on the combination of acoustic energy coupling and circuit fusing. In this paper, the principle and implementation of the method are described, and the key principle of obtaining the status information of the embedded fuse in the heat-insulating layer across the metal medium is verified by experiments. The results show that the method can effectively penetrate the aluminum alloy bulkhead with typical thickness, and can effectively identify the change of the detection signal in the temperature range of 25 ℃–85 ℃. This method also has ability to avoid the impact of strong vibration environment and the drilling for metal body, and can be used for on-line health monitoring which faces to the heat-insulating layer of high-speed aircraft, reentry spacecraft and the new generation of space shuttle transportation system.

关 键 词：无线无源传感 跨金属机体 防热层 烧损监测 

分 类 号：V241.9[航空宇航科学与技术—飞行器设计]