间断式矿用热导元件的研制  

Development of Thermal Conductivity Sensor for Coal Mine

作　　者：朱正和[1] 

机构地区：[1]煤炭科学研究总院重庆分院,重庆400037

出　　处：《矿业安全与环保》2003年第5期15-16,18,共3页Mining Safety & Environmental Protection

摘　　要：介绍了金属丝热电阻式热导元件的研制和检测情况。该元件是电阻丝外用Al2O3与玻璃体包裹,或用多孔惰性材料包裹。经检测,用多孔惰性材料包裹的元件机械强度、抗震性、灵敏度都较好。The paper gives a description of the manufacturing process of a metal-wire heat-resis-tance thermal conductivity sensor.This sensor is made of a resistive wire coat-ed with Al2O3and corpus vitreum or cellular inert material.The test showed that the sensor coated with cellular inert material has better mechanical strength,anti-vibration and sensitivity.

关 键 词：电阻式 热导式元件 间断式 多孔惰性材料 机械强度 抗震性 瓦斯测量 

分 类 号：TD712.55[矿业工程—矿井通风与安全] TH831.2[机械工程—仪器科学与技术]