矿井风速传感器的设计  

Design of Wind Speed Sensor in Mine

作　　者：曹明[1] 曹振兴[1] 王晓卿[1] 王长伟[1] 郝建国[1] 

机构地区：[1]中国矿业大学矿业工程学院,江苏徐州221116

出　　处：《煤矿机械》2010年第3期34-36,共3页Coal Mine Machinery

摘　　要：矿井风速的监测是保证矿井安全生产的重要因素,矿井的工作条件特殊,工作环境复杂,风速测量在矿井安全中是一项重要内容,介绍了采用负温度系数热敏电阻器为检测元件的风速传感器的测量原理,得出了风速与热敏电阻变化的关系,阐述了风速测量原理。It is an important factor of mine-shaft safety to measure the wind velocity for the special working conditions and complicated working surroundings in mine, thus the measuring of wind velocity plays a significant role in mine-shaft safety. The measuring principles of air velocity transducer with negative temperature coefficient thermistor as its detecting element was introduced. ELICIT the corresponding various relationships between wind velocity and resistance changes are elicited. The measuring principle of wind velocity is elaboraled.

关 键 词：热敏电阻器 负温度系数 对流传热 风速传感器 

分 类 号：TD72[矿业工程—矿井通风与安全]