基于LabVIEW的热电材料电阻率测量系统  

Resistivity Measurement System of Thermoelectric Material Based on LabVIEW

作　　者：许伟明[1] 李瑜煜[1] 姚丽丽[1] 

机构地区：[1]广东工业大学材料与能源学院,广东广州510006

出　　处：《广东工业大学学报》2016年第6期38-43,共6页Journal of Guangdong University of Technology

基　　金：广东省科技计划项目(2015A030401091)

摘　　要：为了克服热电材料电阻率测量精度低的问题,以LabVIEW为软件平台,设计并制备数据采集及控制电路,构建了热电材料电阻率测量系统.测量系统具有测量精度高、电阻率测量范围大、界面友好、显示信息丰富等特点,实现了手动测量与自动测量,并具有可控频率的电流自动换向功能,有利于提高测量精度.经实验验证,测量系统的相对误差在-0.25%^+0.25%内,对于热电材料的测量这是一个有价值的测量系统.A resistivity measuring system of thermoelectric material was designed with the LabVIEW as software and the circuit of control and data acquisition as hardware , in order to overcome the problem of low resistivity measurement accuracy .The measurement system has the characteristics of high measuring accuracy , wide measurement range , friendly interface and rich display information .It has an ability to finish manual measurement or automatic measurement .At the same time , it can change the direction of current with controllable frequency in order to improve the measurement accuracy .Experiments show that the relative error within -0.25%-＋0.25%.It is a valuable measurement system for property meas-urement of thermoelectric material .

关 键 词：热电材料测量 电阻率测量 LABVIEW 数据采集及控制电路 

分 类 号：TP216[自动化与计算机技术—检测技术与自动化装置] TH89[自动化与计算机技术—控制科学与工程]