箭载导波信号采存一体化端机集成设计与试验研究  

Integrated Design and Experimental Research of Rocket-borne Structural Guided Wave Signal Acquisition and Storage Device

作　　者：吴穹 付璐[1] 穆继亮[1] 余俊斌 WU Qiong;FU Lu;MU Jiliang;YU Junbin(Science and Technology on Electronic Test&Measurement Laboratory,North University of China)

机构地区：[1]中北大学电子测试技术国家级重点实验室

出　　处：《仪表技术与传感器》2025年第2期75-83,90,共10页Instrument Technique and Sensor

基　　金：国家自然科学基金项目(62101513)。

摘　　要：为实现飞行器箭体结构中冲击导波信号的全程采集与冲击源位置的识别定位,提出了一种功能高度集成的导波信号采集存储一体化端机设计方法。选用FPGA进行高速采样存储控制,结合8通道同步采样ADC与大容量eMMC存储器,实现了体积为160 mm×120 mm×65 mm,质量为1 kg情况下,16通道压电导波传感器信号精度为16 bit的50 kHz高速同步采集、片上128 GB大容量存储与抗掉电多任务数据管理功能。冲击采样与可靠性试验表明,该端机具有存储空间大、采样精度高和环境适应能力强等特点,可作为搭载设备进行热防护层结构健康监测,为可重复使用空天飞行器提供关键技术支撑。To achieve continuous acquisition of guided wave signal and identification of impact locations throughout the flight of the rocket structure,a highly integrated device for guided wave signal acquisition and storage was designed.The system employed an FPGA for high-speed sampling and storage control,combining 8-channel synchronous sampling ADC and large-capacity eMMC memory chip,achieving 16-channel piezoelectric guided wave signal acquisition with 16-bit precision and 50 kHz high-speed syn-chronization sampling,on-chip 128 GB storage,and power-failure-resistant multitask data management within a compact size of 160 mm×120 mm×65 mm and a weight of 1 kg.Impact sampling and reliability tests demonstrate that the terminal features large storage capacity,high sampling accuracy,and strong environmental adaptability.It can serve as an rocket-borne device for structural health monitoring of thermal protection layers,providing key technological support for reusable aerospace vehicles.

关 键 词：空天飞行器 导波信号 结构健康监测 采集存储系统 

分 类 号：TJ76[兵器科学与技术—武器系统与运用工程]