树脂基碳纤维应变传感一体化技术  

Polymer-matrix carbon fiber strain sensor integration technology

作　　者：陈子鹏[1] 马争争[1] 戴亚文[1] 李卓球[1] 

机构地区：[1]武汉理工大学理学院,湖北武汉430070

出　　处：《华中科技大学学报（自然科学版）》2015年第2期98-102,共5页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：中央高校基本科研业务费专项资金资助项目(2014-Ia-016);国家高技术研究发展计划资助项目(2013AA031306)

摘　　要：为了解决树脂基碳纤维传感器存在的蠕变和零漂移的问题,使之能够更加适应工程结构监测的需要,使用低温焊接法制备了树脂基碳纤维传感器,并针对树脂基碳纤维复合材料的应变传感性能中存在的零漂移、蠕变等问题,研发了树脂基碳纤维应变传感一体化技术.该技术包含双恒流电桥平衡电路、软件零点追踪及改进的六端比例测量法.实验结果证明:该一体化技术使碳纤维应变传感器的蠕变由1.3%降低到0.002%,零漂移由6.5%降低到0.001%;能够有效地解决树脂基碳纤维传感器存在的蠕变和零漂移问题.To solve the creep and zero drift problems consist in the polymer-matrix carbon fiber composite and to fit for the request of structure engineering projects,the low-temperature welding method was used to prepare the carbon fiber strain sensor,and the carbon fiber strain sensor integration technology was developed.This integration technology was composed of the double constant-current balanced circuit system,the zero tracking software and the modified six-wire-ohm measurement circuit.The results show that the integration technology can make the creep decrease from 1.3%to 0.002%,and the zero drift decrease from 6.5%to 0.001%,which can solve the problem of creep and zero drift effectively.

关 键 词：复合材料 碳纤维 传感器 零漂移 蠕变 一体化 

分 类 号：TB381[一般工业技术—材料科学与工程] TB34