三波段红外火焰探测器电磁抗干扰设计  

Electromagnetic anti-interference design of triple IR flame detector

作　　者：刘建翔[1,2] 李明强[1,2] 李绍鹏[1,2] 

机构地区：[1]山东省汽车电子技术重点实验室,山东济南250014 [2]山东省科学院自动化研究所,山东济南250014

出　　处：《消防科学与技术》2013年第9期992-994,共3页Fire Science and Technology

基　　金：山东省科技发展计划项目"基于红紫外光的工业火灾探测器和校验器的研制"(2011GGH10131)

摘　　要：阐述探测器基本工作原理,并给出探测器使用过程中的易受扰部位和主要的外界电磁干扰源。在此基础上从前置放大器、电源滤波器、PCB设计、结构屏蔽四个方面给出设计方案,以提高探测器的电磁抗扰度能力。经实际测试和现场使用,采用了EMC设计的探测器能够满足GB 15631-2008《特种火灾探测器》的要求。Basic work principles of detector were elaborated, and the vulnerable parts of detectors and main sources of electro magnetic interference were listed. Based on these, the system electromagnetic immunity design in preamplifier, power filter, PCB design and structure shielding were presented, to improve the anti-interference capability. Through the relevant standard test and actual use, it is shown their the EMC solutions can satisfy the requirement of GB 15631-2008, Special type fire detectors.

关 键 词：火焰探测器 电磁兼容 电源滤波 电磁抗扰 

分 类 号：X924.4[环境科学与工程—安全科学] TN215[电子电信—物理电子学]