基于北斗GNSS的交直流电位梯度测量系统设计  

Design of AC/DC Potential Gradient Measuring System Based on Beidou GNSS

作　　者：张军 诸海博 宋华东 蔡军 张文强 胡文广 ZHANG Jun;ZHU Hai-bo;SONG Hua-dong;CAI Jun;ZHANG Wen-qiang;HU Wen-guang(SINOMACH Sensing Technology Co.,Ltd.,Shenyang 110043,China)

机构地区：[1]国机传感科技有限公司,辽宁沈阳110043

出　　处：《仪表技术与传感器》2023年第5期55-58,共4页Instrument Technique and Sensor

基　　金：国家自然科学基金项目(U21A20481)。

摘　　要：文中设计了一种基于北斗GNSS的交直流电位梯度测量系统,系统通过探杖下端的电极接触土壤取得电位信号,经过信号调理、模拟数字转换和离散傅里叶变换获得电位梯度测量值,基于北斗GNSS的相位差分定位技术和探杖姿态传感功能取得测量点的精确位置信息,将电位梯度数据与位置数据融合,形成精确量化的交直流电位梯度全面数据记录,解决了多次测量中数据不能复现的难题,显著提高了管道健康水平综合评估的准确度。An AC/DC voltage gradient measurement system based on beidou GNSS was designed in this paper,potential signals were obtained by contacting the soil with an electrode at the bottom of the rod,after signal conditioning,analog to digital conversion and discrete Fourier transform,potential gradient measurement value was obtained,based on the phase difference positioning technology of beidou GNSS and rod gesture sensing function,the precise location of information was achieved.The potential gradient data and position data were fused to form an accurate and quantified comprehensive data record of AC/DC potential gradient,which solves the problem that the data cannot be reproduced in multiple measurements,and significantly improves the accuracy level of comprehensive assessment of pipeline health level.

关 键 词：埋地管道 外检测 电位梯度 北斗 测量系统 

分 类 号：TE988[石油与天然气工程—石油机械设备]