利用加速度计实现管道缺陷定位的研究  

Study on Flaw Location of Pipeline with Accelermeter

作　　者：沈跃[1] 

机构地区：[1]中国石油大学石油工程教育部重点实验室

出　　处：《管道技术与设备》2007年第6期13-15,20,共4页Pipeline Technique and Equipment

基　　金：教育部创新团队(LRT0411)

摘　　要：介绍了一种利用高分辩率加速度计实现管道缺陷定位的方法,通过加速度值对时间进行二次积分运算并进行适当的误差修正,可以得到智能清管器行走的精确距离,依据时标与距离的线性关系,达到较高的缺陷定位精度。室内实验研究表明,定位精度可以达到定标长度的0.2%。A method for flaw location of pipeline was presented,and a high resolution servo accelermeter CX-3 was used to measure the axial acceleration of the smart PIG in a pipeline to determine the precise distance, the smart PIG has walked under the integral operation of the acceleration value to time variables and error correction.Based on the linear relation between the distance and the time label,a flaw location precision about 0.2% can be reached through indoor experimental measurement.

关 键 词：加速度计 智能清管器 时标 定位精度 

分 类 号：TP206.1[自动化与计算机技术—检测技术与自动化装置]