基于外环状电荷感应原理的粉尘浓度测量  

Dust Concentration Measured by Outer Induced Charge Method

作　　者：赵恩彪[1] 隋金君[1] 王自亮[1] 李智[1] 颜鸽来[1] 

机构地区：[1]煤炭科学研究总院重庆研究院,重庆400037

出　　处：《仪表技术与传感器》2010年第6期15-16,24,共3页Instrument Technique and Sensor

基　　金：煤炭科学研究总院青年创新基金项目(2008QN66)

摘　　要：介绍一种粉尘浓度测量的新方法——电荷感应法。基于外环状电荷感应测量原理,设计了试验测量装置,建立了试验平台,对粉尘浓度与感应电流的关系进行了试验研究。试验结果表明:粉尘浓度与其产生的感应电流呈线性关系,关系式为|Im|=4.15×10-4u0.93C;风速、粉尘粒径对电荷法测量粉尘浓度有影响,风速越大、粒径越小,产生的感应电流越大。This paper introduced a new measurement of dust concentration method—induced charge method.It designed the experimental test device,established the experimental platform,researched the dust concentration and the relationship between induced current by outer induced charge method.The experimental results show that the concentration of dust generated by their linear relationship between induced current,wind speed,dust measurement of particle size on the charge of dust concentration affect the greater the wind speed,the smaller the particle size,the greater the induced current generated.

关 键 词：电荷感应 粉尘浓度 感应电流 风速 粒径 

分 类 号：TD714.3[矿业工程—矿井通风与安全]