温度对聚偏氟乙烯压力传感器灵敏度的影响  

Effect of temperature on PVDF pressure transducer sensitivity

作　　者：曾辉[1] 余尚江[1] 杨吉祥[1] 丁世敬[1] 

机构地区：[1]总参工程兵科研三所,河南洛阳471023

出　　处：《传感器技术》2004年第6期46-48,共3页Journal of Transducer Technology

摘　　要：聚偏氟乙烯(PVDF)压电薄膜的热电效应对PVDF压力传感器的输出灵敏度影响较大。通过对研制的PVDF压力传感器灵敏度受温度影响的试验研究得出:传感器的灵敏度随温度增加而增大,两者关系是一条曲线;在-20～60℃范围内其热灵敏度漂移系数是个常数,其值为0.007619℃;利用室温时传感器校准得出的输出灵敏度,用公式可以计算出-20～60℃范围内任何温度时的灵敏度,从而实现了传感器灵敏度受热电效应影响的修正。The pyroelectric effect of polyvinylidence fluoride (PVDF) has great influence on the PVDF pressure transducer sensitivity. By studying on the temperature test ,it is concluded that the PVDF pressure transducer sensitivity increases with temperature and the relation between sensitivity and temperature is a curve; The thermal sensitivity shift coefficient is a constant of 0.007 619(1/ ℃) in the range of -20～60 ℃; The transducer sensitivity within the temperature of -20～60 ℃ can be calculated by the calibrated data in the laboratory condition, so the pyroelectric influence on the sensitivity can be amended.

关 键 词：聚偏氟乙烯 压力传感器 灵敏度 热电效应 热灵敏度漂移 

分 类 号：TH812.5[机械工程—仪器科学与技术]