传感技术学报2016，Vol.29Issue(7)：984-989,6.DOI:10.3969/j.issn.1004-1699.2016.07.006
磁弹效应索力传感器的差动式温度补偿及试验研究
Differential Temperature Compensation and Experimental Studies of Magneto-Elastic Effect Cable Force Sensor
摘要
Abstract
On the basis of the study of cable force test method using bypass structure based on magneto-electric lam⁃inated composite,using the ferromagnetic molecular field theory and Bloch spin wave method,the function relation between magnetization and temperature is established to study the influence mechanism of temperature on test accu⁃racy. The temperature compensation sensor with a parallel assembly magnetic circuit structure is proposed. Using the difference operation technology,a differential signal processing circuit with time sharing signal conditioning function is designed to realize the automatic compensation for the whole temperature range. Test shows:under the 0~20 kN variable load and in-30℃~+80℃temperature range,the influence of temperature fluctuation is less than 1%;measurement repeatability error is 0.04%~0.30%. It can solve the problem of temperature compensation effec⁃tively and meet the requirements of cable force test engineering.关键词
索力传感器/温度补偿/差分技术/磁电复合材料/磁化强度Key words
cable force sensor/temperature compensation/differential technique/magneto-electric laminated com-posite/magnetization分类
建筑与水利引用本文复制引用
冯志敏,邵磊,陈跃华..磁弹效应索力传感器的差动式温度补偿及试验研究[J].传感技术学报,2016,29(7):984-989,6.基金项目
国家科学自然基金项目（51505237）；浙江省科技计划项目 （）
