气固两相流静电传感器特性的研究  

The characteristics of electrostatic sensors for measuring gas-solid two phase flow

作　　者：张朴[1] 孔力[1] 刘文中[1] 刘勇 

机构地区：[1]华中科技大学控制科学与工程系,湖北武汉430074 [2]顺德市协力电子元件有限公司,广东顺德528300

出　　处：《华中科技大学学报（自然科学版）》2004年第2期32-34,共3页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目 ( 6 9874 0 17)

摘　　要：基于点电荷的概念 ,设计了气固两相流传感器的静电感应实验装置 ,并实验研究了传感器环状电极的几何尺寸对传感器性能的影响 .结果表明 ,对于直径相同的电极 ,其长度越短 ,所构成的传感器的通带频宽越大 ,但传感器的能量传递系数却变小 .因此在设计传感器时 。Based on the concept of point charge, the experimenta l device of electrostatic induction was designed. The effects of dimensions of the ring probes on the characteristics of the gas-solid two phase flow sensors wer e studied. The experimental results showed that the shorter is the length of the ring probe, the wider is the frequency band of the sensor , but the smaller is the energy transfer ratio. So, the influences of frequency bandwidth and energy transfer ratio on the measurement result should be considered in sensor designs.

关 键 词：粉粒体电荷 静电传感器 气固两相流 

分 类 号：TP21[自动化与计算机技术—检测技术与自动化装置]