摘要
架空电缆安装施工过程中,塔架物品提升使用的钢丝绳的拉力监测对施工安全性有着重要意义。由此设计了一种基于三点弯曲法原理的拉力检测装置。该装置内单片机系统将压力传感器获得的信号放大接入计算机,转化为电信号输出,以实现监测。但该方法必然存在非线性因素的干扰,通过实验标定与误差补偿,该装置误差可控制到2%以内;实际使用中发现环境温度引起的测量误差不可忽略,为此通过温度标定试验进行温度补偿。实际工程数据结果表明,其测量误差能够满足工程需求。
In the process of overhead cable installation and construction,the tension monitoring of steel wire rope used for tower lifting is of great significance to construction safety.Therefore,a tension detection device based on the principle of three-point bending method is designed.The single chip microcomputer system in the device amplifies the signal obtained by the pressure sensor into the computer and converts it into electrical signal output to realize monitoring.However,there must be the interference of nonlinear factors in this method.Through experimental calibration and error compensation,the error of the device can be controlled within 2%.In practice,it is found that the measurement error caused by ambient temperature can not be ignored.Therefore,temperature compensation is carried out through temperature calibration test.The results of practical engineering data show that the measurement error can meet the engineering needs.
作者
张晓琳
曾志强
党长营
贾立功
Zhang Xiaolin;Zeng Zhiqiang;Dang Changying;Jia Ligong(School of Mechanical Engineering,North University of China,Taiyuan 030051,China)
出处
《电子测量技术》
北大核心
2021年第19期45-49,共5页
Electronic Measurement Technology
基金
中北大学先进制造技术山西省重点实验室开放基金项目(XJZZ201904)资助。
关键词
单片机
拉力监测
标定
误差补偿
温度误差
single chip microcomputer
tension monitoring
calibration
error compensation
temperature error
