陶瓷温度传感器的实验研究  

Experimental Study of the Ceramic Temperature Sensor

作　　者：应琴[1] 黄楷焱[1] 陈泽芸[1] 袁卫锋[1] 

机构地区：[1]西南科技大学制造科学与工程学院,四川绵阳621010

出　　处：《机械设计与制造》2016年第3期34-36,共3页Machinery Design & Manufacture

基　　金：国家自然科学基金面上项目(11472232);西南科技大学博士基金(12zx7105);绵阳市科技计划项目(14G-06-3)

摘　　要：温度的精确测量在工程实践中常具有重要意义,而超高温的测量对传感器件的耐高温性能提出了极高的要求。本研究对碳纳米管(CNT)和高岭土混合后进行烧结,所制备的多孔材料具备半导体的特性。由于该材料的交流电阻抗随温度的升高而降低,陶瓷本身具有耐高温的特点,该材料可用于超高温测试传感器件。本研究针对不同碳纳米管添加量的陶瓷材料试件进行了系列实验,初步揭示了材料阻抗对温度敏感的规律和机理,为进一步开发超高温测试传感器创造了条件。Accurate temperature measurement in engineering is very important oa some occasious. The measurement of ultrahigh temperature requires the sensor is able to work under the ultrahigh temperature environment. The mixture of kaolin and carbon nanotubes （CNT） is sintered in furnace to make a kind of porous material which has the characteristics of semiconductors. The AC resistance of this material decreases as the temperature increases. Due to the ability of ceramic to resist ultrahigh temperature, this ceramic composite material could be used to fabricate ultrahigh temperature measurement sensors. A series of tests are conducted for the composite material with various CNT proportions. Through the experiment, the rules and mechanisms of sensitivity of the material to the temperature are preliminarily revealed. This work provides basis for the future development of ultrahigh temerature measurement sensor wtth the new material.

关 键 词：精确测温 传感器 碳纳米管(CNT) 陶瓷 

分 类 号：TH16[机械工程—机械制造及自动化]