摘要
常规的振动位移监测设备存在价格昂贵、受传感器安装位置以及空间的限制等缺点,很难在工业领域里大规模地推广应用。由于加速度与位移之间存在着积分运算关系,且加速度信号比较容易测量,因此,课题组对加速度频域积分方法进行了研究,并利用LabVIEW虚拟仪器平台和MATLAB开发出一套简易且具有较高精度的振动位移测量系统。为了进一步验证当前系统的有效性,课题组以振动平台作为实验对象,将当前系统测量的位移与数字图像相关(digital image correlation, DIC)方法测量的位移进行了对比研究。实验结果表明所提出的振动位移测量系统具有较高的测量精度。
Conventional vibration displacement monitoring equipment was expensive, limited by the installation location and space of sensors, and was difficult to be widely used in the industrial field.Due to the integral operation relationship between acceleration and displacement, and the relatively easily measured acceleration signal, the acceleration frequency domain integral method was studied, and a set of simple and high precision vibration displacement measurement system was developed by using LabVIEW virtual instrument platform and MATLAB. In order to further verify the effectiveness of the current system, the displacement measured by the current system was compared with that measured by digital image correlation(DIC) with the vibration platform as the experimental object. Experimental results show that the current low cost vibration displacement measurement system has high precision.
作者
林培
许杨剑
陈栋栋
鞠晓喆
梁利华
LIN Pei;XU Yangjian;CHEN Dongdong;JU Xiaozhe;LIANG Lihua(School of Mechanical Engineering,Zhejiang University of Technology,Hangzhou 310014,China;Zhejiang Academy of Special Fquipment Science,Hangzhou 310020,China)
出处
《轻工机械》
CAS
2022年第6期71-75,共5页
Light Industry Machinery
基金
浙江省“尖兵”“领雁”研发攻关计划资助(项目编号:2022C01175)。
关键词
位移信号
加速度信号
频域积分
LABVIEW
数字图像相关
displacement signal
acceleration signal
frequency domain integral
LabVIEW
DIC(Digital Image Correlation)
