摘要
基于三极法研制了分层土壤电阻率在线监测系统,系统主要包括客户端软件、土壤电阻率监测仪和接地极3部分。分层土壤电阻率在线监测系统不但可以单机测量而且还可以形成一个多站点的土壤电阻率监测网络。该系统实现了4个功能:第一,同时测量5个以内不同深度层次的土壤电阻率和接地电阻值;第二,利用GPRS无线传输或串口有线传输实现了长期自动不间断地监测多地点、不同采样周期的土壤电阻率变化规律;第三,可在多种恶劣环境下远程监测不同设备接地装置的接地电阻值;第四,实现了测量数据的实时传送与显示以及对历史测量数据的快捷处理。通过三年的试验表明,该系统可以稳定准确地测量出不同深度层次的土壤电阻率值,测量数据可以精确地反映不同深度层次土壤电阻率的变化规律与温度、降水等气象因素的相关性。
Based on the three-electrode method a layered-soil-resistivity online monitoring system was developed. This system is comprised of client software, soil resistivity monitors and earth electrodes. The system can not only measure soil resistivity with single-unit but can also form a multiple site soil resistivity monitoring network. The system implements the following four functions： Firstly, the system can simultaneously measure the grounding resistances and soil resistivities at different depths in at most five locations. Secondly using GPRS wireless transmission mode or serial port wire transmission mode, the system can continuously and automatically monitor the soil resistivity change in multiple locations with different sampling periods. Thirdly, this system can remotely monitor the grounding resistance of different kinds of equipment under severe conditions. Fourthly, with this system, the measurement data can be transmitted and displayed in real time and the historical data can be processed quickly and efficiently. Three year test result shows that this system can steadily and accurately measure the soil resistivities at different depths, and the measured data can accurately reflect the correlation of soil resistivity change at different depths vs. temperature, precipitation and other meteorological factors.
出处
《仪器仪表学报》
EI
CAS
CSCD
北大核心
2014年第6期1306-1314,共9页
Chinese Journal of Scientific Instrument
基金
铁道部重大专项课题(2011T008-D)资助项目
关键词
分层土壤
土壤电阻率
在线监测系统
三极法
layered soil
soil resistivity
on-line monitoring system
three-electrode method
