自动化仪表
自動化儀錶
자동화의표
PROCESS AUTOMATION INSTRUMENTATION
2014年
4期
30-33
,共4页
大地电磁%GPRS通信%数据采集%上位机%传感器
大地電磁%GPRS通信%數據採集%上位機%傳感器
대지전자%GPRS통신%수거채집%상위궤%전감기
Magnetotelluric%GPRS communication%Data acquisition%Host computer%Sensor
大地电磁天然场测量是地球物理深部探测的重要方法，要求实现长时间的高精度测量，为此设计了大地电磁天然场远程测量系统。系统硬件由传感器、24位ADC数据采集卡、GPRS远程通信电路、PC上位机组成。测试结果表明，系统实现了对大地电磁微弱信号的高精度采集，并能通过GPRS网络将数据远程实时传输至PC上位机，实现现场无人值守测量。同时，系统可开展大地电磁( MT)、音频大地电磁( AMT)、可控源音频大地电磁( CSAMT)等多种测量，可应用在环境、水文、地质灾害监测等其他场合。
大地電磁天然場測量是地毬物理深部探測的重要方法，要求實現長時間的高精度測量，為此設計瞭大地電磁天然場遠程測量繫統。繫統硬件由傳感器、24位ADC數據採集卡、GPRS遠程通信電路、PC上位機組成。測試結果錶明，繫統實現瞭對大地電磁微弱信號的高精度採集，併能通過GPRS網絡將數據遠程實時傳輸至PC上位機，實現現場無人值守測量。同時，繫統可開展大地電磁( MT)、音頻大地電磁( AMT)、可控源音頻大地電磁( CSAMT)等多種測量，可應用在環境、水文、地質災害鑑測等其他場閤。
대지전자천연장측량시지구물리심부탐측적중요방법，요구실현장시간적고정도측량，위차설계료대지전자천연장원정측량계통。계통경건유전감기、24위ADC수거채집잡、GPRS원정통신전로、PC상위궤조성。측시결과표명，계통실현료대대지전자미약신호적고정도채집，병능통과GPRS망락장수거원정실시전수지PC상위궤，실현현장무인치수측량。동시，계통가개전대지전자( MT)、음빈대지전자( AMT)、가공원음빈대지전자( CSAMT)등다충측량，가응용재배경、수문、지질재해감측등기타장합。
The measurement of magnetotelluric natural field is an important method for geophysical deep exploration, in order to achieve long term high precision measurement;the remote measurement system of magnetotelluric natural field has been designed. The hardware of system is composed of sensors, 24-bit ADC data acquisition card, GPRS remote communication circuit and the PC host computer. The test results indicate that the system carries out high precision acquisition of the weak magnetotelluric signals, and uploads the data to PC via GPRS network in real time, for implementing unattended measurement. In addition, the system is able to perform multiple measurements, e. g. , magnetotelluric ( MT) , audio MT ( AMT ) , and controllable source audio MT ( CSAMT ) , it can be applied in many fields, including environmental, hydrological, geological disaster monitoring and other occasions.
