基于非合作目标激光气体遥测仪的设计开发与应用研究  

Research on Design,Development and Application of Laser Gas Telemeter Based on Non-cooperative Targets

作　　者：程跃 栾林 周扬 李云飞 李开远 Cheng Yue;Luan Lin;Zhou Yang;Li Yunfei;Li Kaiyuan(Anhui Zezhong Security Technology Co.,Ltd.,Hefei,Anhui 230601 China;Hefei Institute for Public Safety Research,Tsinghua University,Hefei,Anhui 230601 China)

机构地区：[1]安徽泽众安全科技有限公司,安徽合肥230601 [2]清华大学合肥公共安全研究院,安徽合肥230601

出　　处：《应用激光》2022年第5期72-81,共10页Applied Laser

摘　　要：激光气体遥测作为本征安全气体探测方法,可进行实时在线、非接触、远距离探测,具有独特的优势。基于非合作目标设计和开发一款具有完全自主知识产权的便携、轻巧、可实用化的手持式激光甲烷气体遥测仪,其温控芯片采用WTC3243,控温精度可达0.01℃,收发一体光学遥测组件采用平行光轴设计。通过标准气体比对测试,结果表明测量相对误差在±5%范围之内,测量综合偏差为293×10^(-6)m,遥测仪测量值与标准积分浓度值之间的拟合优度达0.999。经过不同遥测距离测试,结果表明遥测距离可达20m,且系统具有不同遥测距离测量的一致性。通过甲烷泄漏气团实际环境模拟测试,结果表明设计与开发的该手持式激光甲烷气体遥测仪完全可用于实际燃气管道等场所甲烷气体泄漏的实时在线、非接触、远距离遥测,且满足测量要求。As an intrinsically safe gas detection method,laser gas telemetry can perform real-time,online,non-contact,and long-distance detection,which has unique advantages.Based on non-cooperative Targets,aportable,lightweight,low-cost and practical handheld laser methane telemeter with completely independent intellectual property rights has been designed and developed.The temperature control chip of the telemeter adopts WTC3243and the temperature control accuracy can reach 0.01℃.The transceiver integrated optical telemetry component of the telemeter adopts a parallel optical axis design.Through the standard gas comparison test,results show that the relative measurement error is within±5%,the comprehensive measurement deviation is 293×10^(-6)m,and the goodness of fit between the telemeter measurement value and the standard integral concentration value is up to 0.999.After different telemetry distance tests,results show that the telemetry distance can reach 20 m,and the system has the consistency of different telemetry distance measurements.By simulating the actual environment test of methane leaking air mass,results show that the designed and developed handheld laser methane gas telemeter can be used for real-time,online,non-contact,and remote sensing of methane gas leakage in actual gas pipelines and other places,which also meets the measurement requirements.

关 键 词：非合作目标 激光气体遥测 甲烷 微控制单元 STM32 

分 类 号：TP315[自动化与计算机技术—计算机软件与理论]