PVDF传感器标定中的信号处理算法  

Signal Processing Algorithm about PVDF Sensor Calibration

作　　者：沈峰[1] 郑航[2] 

机构地区：[1]安徽科技学院计算机科学与技术系,安徽凤阳233100 [2]中国科学技术大学近代力学系,合肥230027

出　　处：《重庆科技学院学报（自然科学版）》2014年第3期130-134,共5页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

基　　金：安徽省高校省级自然科学研究项目(KJ2012B053)

摘　　要：利用霍普金斯压杆,对自制的PVDF压力传感器进行标定实验。由于标定实验得到的PVDF信号存在零点漂移,不能直接得到理想的转移电荷信号,因此利用LabView设计对PVDF电流信号进行处理实现电荷转移,该算法可有效的消除零点漂移对积分结果的影响,处理速度快,可用于类似的信号处理。经算法处理得到的标定结果与文献中的结果相近,说明自制的PVDF压力传感器性能稳定,该积分算法可靠。Customized PVDF pressure sensor is needed to calibrate, so we use Hopkinson bar to do it. However, the experiment result of PVDF signals has included zero drift, which can not be obtained the ideal transfer charge signal by direct way. The algorithm using Labview application has developed which is used to process the PVDF current signals in order to transfer charge. The algorithm can effectively eliminate affection of zero drift for the inte- gration. The algorithm is reliable, has fast speed, can be used for a similar signal processing situation. The calibra- tion result of the program is similar with the result the reference, which shows the performance of our customized PVDF pressure sensor is stable and the result is correct and reliable.

关 键 词：聚偏氟乙烯 压力传感器 标定 零点漂移 信号处理 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]