中国机械工程2018，Vol.29Issue(1)：63-69,7.DOI:10.3969/j.issn.1004-132X.2018.01.010
高速动车组轴温测量用特种结构薄膜传感器的研制
Development of Special Structure Thin-film Sensors for Axle Temperature Measurement of High-speed Electric Multiple Units
摘要
Abstract
According to the characteristics that axle box bearing temperature changed rapidly in high-speed electric multiple units,a kind of special structure thin-film sensors was developed,which adopted NiCr/NiSi thin-film as the sensitive materials prepared by DC pulsed magnetron sputtering technique.A self-developed calibration system was used to calibrate the static and dynamic characteristics of the sensors.The results show that the sensors have good linearity in the temperature ranges of 30～400 ℃,the Seebeck coefficient is as 37.84μV/℃ with a nonlinear fitting errors less than 0.7％ and the dynamic response time is as 53.72ms.The wear tests on the special structure thin-film sensors show that the wear of the sensor's thermo-junction has little influences on dynamic and static characteristics of temperature measurements.It means partial wears of temperature measuring ends of the sensors do not affect the test performances.关键词
薄膜传感器/瞬态轴温测量/磁控溅射/动态标定/磨损实验Key words
thin-film sensor/transient axle temperature measurement/magnetron sputtering/dynamic calibration/wear test分类
机械制造引用本文复制引用
崔云先,胡晓勇,薛帅毅,刘义,牟瑜..高速动车组轴温测量用特种结构薄膜传感器的研制[J].中国机械工程,2018,29(1):63-69,7.基金项目
国家自然科学基金资助项目(51575074) （51575074）
辽宁省科技计划资助项目(2012220007) （2012220007）
