动态电流法热释电系数测试系统结构设计  

Design of Pyroelectric Coefficient Test System Based on Dynamic Current Method

作　　者：曾亦可[1] 罗旖旎[1] 任伏龙[1] 姜胜林[1] 

机构地区：[1]华中科技大学电子科学与技术系,湖北武汉430074

出　　处：《仪表技术与传感器》2007年第4期34-36,共3页Instrument Technique and Sensor

基　　金：国家"九七三"计划项目(2004CB619300);湖北省自然科学基金项目(2005ABA298)

摘　　要：设计了一个热释电系数测试系统,用它来评价热释电材料的性能。系统基于动态电流法原理,由热释电样品加热、温度测量、升降温速度控制、热释电电流测量和测量数据处理5个部分构成。利用系统测得热释电材料样品的热释电系数峰值为1.98×10-7C/(cm2.℃),符合有关文献的报道,表明测试系统的性能良好。A test system of pyroelectric coefficient was designed to evaluate the performance of pyroelectric materials. This system basing on dynamic current method consists of five parts, they are the heating of pyroelectric samples, the temperature measurement, the speed control of rise or drop in temperature, the pyroelectric current measurement and the test data processing respectively. The pyroelectric coefficient of a pyroelectric material sample was measured by the system, and the peak value was 1.98×10^-7 C/（cm^2·℃ ）. This result accords with the relevant literature very well. It shows that the test system has good performance.

关 键 词：热释电系数 流体力学 电流放大器 温度控制 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]