摘要
针对在恶劣环境下冲击波场超压测试传统方法中布线难、干扰大、无法实时监测和及时获取数据等问题,提出了一种无线控制的负延时存储测试方法。存储测试装置由传感器、模拟适配调理电路、A/D变换器、存储器、控制电路、接口、电池组成,由单片机与CPLD共同控制两片NAND结构闪存实现高速完整存储。Zigbee无线传感器网络技术用于对整个测试系统的触发、采集和数据传输等操作的控制。实验表明:这种新型测试方法具有可无线遥控、微功耗、抗高冲击、抗干扰、工作稳定可靠等特点,适于恶劣环境下数据记录和传输。
Aiming at the problems such as hard wiring,large interference,unable real-time monitoring and accessing data and so on of the traditional method of the shock wave overpressure testing in harsh environment.This paper promoted a negative delay testing method with wireless monitoring,which consisted of sensors,adaptive amplifier,A/D converter,memory,control circuit,interface,battery.Storage device used the MCU and CPLD controlling two NAND flash memory with negative delay function to storage fast and completely.The testing trigger,acquisition and data return etc.were controlled by Zigbee wireless sensor network.Experiments results showed that the new storage method had the advantages of wireless remote control,small size,low power consumption,high impact resistance and other characteristics,and was reliable and effective,which is suitable for data recording and timely returning in harsh environments.
出处
《探测与控制学报》
CSCD
北大核心
2011年第4期15-18,22,共5页
Journal of Detection & Control
