PMT运行特性对粉尘测量影响的分析与研究  

Analysis and Study of Influence of PMT Operating Characteristic on Dust Measurement

作　　者：赵恩彪[1] 唐娟[1] 陈颖兴[1] 李智[1] 刘清宫[1] 

机构地区：[1]煤炭科学研究总院重庆研究院,重庆400037

出　　处：《矿业安全与环保》2008年第3期30-33,36,共5页Mining Safety & Environmental Protection

摘　　要：通过对PMT的运行时间、参考电压、温度、磁场等特性进行分析和试验研究,结果表明:粉尘测量系统中随着运行时间的增加,PMT输出趋于稳定;参考电压的不同其稳定性也不同;温度升高PMT输出电压略有下降;磁场对PMT灵敏度影响敏感。该研究结论可为粉尘浓度测量系统硬件、软件设计提供依据,也可为PMT在其他方面的应用提供参考。To counter the essential component-PMT used in dust measurement,analysis and study were made on this component.Through analysis and experimental study on the characteristics such as operating time,reference voltage,temperature and magnetic field of PMT,it is concluded that the PMT output was tending towards stability with the increase of operating time of it dust measurement system;different reference voltage had different stability;the output voltage of PMT decreased slightly with temperature rise;and magnetic field had sensitive influence on the sensitivity of PMT.These conclusions can provide basis for the design of hardware and software in dust measurement system,and also offer reference for the application of PMT in other aspects.

关 键 词：PMT 运行时间 参考电压 温度 磁场 

分 类 号：TD714.3[矿业工程—矿井通风与安全]