ZHENG Feng-qin1， XIE Rui2
（1. Science and Technology on Electronic Test & Measurement Laboratory, North University of China, Taiyuan 030051， China;2. Key Laboratory of Instrumentation Science & Dynamic Measurement (North University of China), Ministry of Education, Taiyuan 030051, China)
Abstract： The paper studies a cycle storage system with fixed capacity to monitor fuze battery’s working voltage and noise, solving the problems of small capacity and low sample frequency. A 4 MB cycle sampling space is designed by adopting the negative delay technology, which implements the function of recording 4 MB data before triggered and then sequentially recording 50 MB data to ensure that the host computer recovers the voltage and noise data correctly and effectively. Two pieces of Flash work alternately to avoid the time conflict between commands programming and data writing. This method can make efficient use of storage space, recording the information before triggered, therefore it ensures the reliability and validity of the measured data.
Key words： fuze battery; negative delay; storage measurement
CLD number： TJ430.6 Document code： A
Article ID： 1674-8042(2014)01-0021-04 doi： 10.3969/j.issn.1674-8042.2014.01.004
References
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基于负延迟技术的引信电池测试系统
郑凤芹1， 谢锐2
(1. 中北大学 电子测试技术重点实验室， 山西 太原 030051；2. 中北大学 仪器科学与动态测试教育部重点实验室， 山西 太原 030051)
摘要:本文研究了一种定容量循环存储方法来实现对引信电池工作时电压及噪声的监控。 针对有限的存储空间， 采用负延迟触发的方法对每片 Flash 设计了 4 MB 的循环采样空间来记录触发前 4 MB 的数据， 并实现触发后顺序记录 50 MB 的数据； 采用两片 Flash 交替工作的方式， 避免了命令传送与数据编程在时间上的冲突。 该方法合理地利用了存储空间， 有效地记录触发前的信息， 保证了数据的可靠性和正确性。 实验测试表明： 该系统可实现对引信电池的监测。
关键词:引信电池； 负延迟； 存储测试
引用格式：ZHENG Feng-qin， XIE Rui. Fuze battery test system based on negative delay. Journal of Measurement Science and Instrumentation, 2014, 5(1): 21-24. [doi: 10.3969/j.issn.1674-8042.2014.01.004]
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