宇航计测技术

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多通路激光火工品等效测量装置设计

刘永1,2;田宇1,2;姜云涛1,2;郜诗佳1,2   

  1. 1、北京航天自动控制研究所,北京 100854;2、宇航智能控制技术国家级重点实验室,北京 100854
  • 出版日期:2018-04-25 发布日期:2018-04-25
  • 作者简介:刘永(1983-),男,博士,主要研究方向:控制系统设计、时延控制理论、遥操作机器人系统研究
  • 基金资助:
    核高基重大专项资助项目(2017ZX0013101-002)

Design of Multi-channel Equivalent Instrument for Laser Pyrotechnics System

LIU Yong1,2;TIAN Yu1,2;JIANG Yun-tao1,2;GAO Shi-jia1,2   

  1. 1、Beijing Aerospace Automatic Control Institute, Beijing,100854;
    2、National Key Laboratory of Science and Technology on Aerospace Intelligence Control, Beijing 100854,China
  • Online:2018-04-25 Published:2018-04-25

摘要: 激光火工品起爆系统的功能完整性影响着火工品的正常起爆。为了检测起爆系统的完整性,设计了一款以FPGA为核心的多通道激光火工品等效测量装置。该装置利用光电转换电路、放大滤波电路、A/D采样电路以及双SDRAM存储机制对每个通路的起爆激光功率进行连续采样,并通过板载CPCI总线与上位机完成控制指令和数据交换。试验表明,该装置激光功率采样精度和时序采样精度均满足设计要求,系统设计方案可行。

关键词: 激光, 火工品, 起爆, 等效装置, 多通路, 激光功率, 时序检测

Abstract: The integrity of laser pyrotechnics initiating system is of vital important to the initiator explosive. In order to measure the integrity of the initiating system, a novel FPGA based multichannel equivalent instrument for laser initiating system is designed. The instrument measures the initiating laser power with photo-electricity conversion circuit, amplifying and filtering circuit, A/D conversion circuit and high-speed SDRAM dual cache. With these components, the designed instrument samples the initiating laser of each channel continually. Meanwhile, the instrument exchanges data and instructions with host computer via CPCI bus. The experiment proves the feasibility of the instrument design, and both of the laser power sampling accuracy and the signal sequence sampling accuracy satisfy design specification.

Key words: Laser, Pyrotechnics, Initiation, Equivalent instrument, Multi-channel, Laser power, Signal sequence testing