地震地磁场野外观测同步控制系统研制与应用.pdf

《地震地磁场野外观测同步控制系统研制与应用.pdf》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、第37卷第1期地震工程学报Vo1．37No．12015年3月CHINAEARTHQUAKEENGINEERINGJOURNALMarch，2O15业仪器研制带祭带带带地震地磁场野外观测同步控制系统研制与应用①闫计明，王新胜，杨世英(1．山西省地震局太原基准台，山西太原030025；2．太原大陆裂谷动力学国家野外科学观测研究站，山西太原030025)摘要：针对地震地磁野外观测的需求，开发研制了一种基于无线网络的野外同步观测系统。该系统主要由接口单元、采集控制(cPu)单元、无线单元、传输网络、计算机控制中心等组成。该系统操作简单，实用性强，

2、具有远程唤醒及休眠、校时等服务功能，也可应用到地磁台阵的数据传输与同步工作中。关键词：地磁观测；系统研制；数据传输中图分类号：P318．6文献标志码：A文章编号：i000—0844(2015)O1一O28O—O4D0I：10．3969／j．issn．1000—0844．2O15．01．0Z80DevelopmentandApplicationofaSynchronousControlSystemtoSeismo-geomagneticFieldObservationsYANJi—ruing，WANGXin—sheng。YANGShi—yi

3、ng’。(1．TaiyuanR咖renceSeismologicalStation，EarthquakeAdministrationofShanxiProvince，Taiyuan。Shanxi030025，China；2．StateKeyObservatoryofShanxiRiftSystem，Taiyuan，Shanxi030025。ChinaIAbstract：Theapplicationofgeomagneticmeasurementsismainlyfocusedintwoareas．Thefirstisscientificr

4、e—search，nationaldefense，andnationaleconomicandsocialdevelopment，suchasmineralexploration．Thesecondistoserveearthquakemonitoringandprediction．Seismo—geomagneticfieldmeasurementsareregularlyrepeatedmeasure—mentsatseveralpointsinthefieldusingahigh—precisionmagnetometer．Thep

5、urposebehindtakingsuchmeasure—mentsistoresearchthetemporalchangeandspatialdistributionofthelocalgeomagneticfieldbeforeandafterearthquakes．Inthefield。asurveygridorlineisusedforobtaininggeomagneticobservations，thespatialcoverageofwhichisgenerallynotlessthan150km×150kmforasu

6、rveygridandnotlessthan200kmforasurveyline．Inad—dition，thedistancebetweenmeasuringpointsisusually5～40km．Forthemeasurementoftotallocalgeomagneticintensityusingmobileobservations-twosurveypegs(mainandvice)wereinstalledatfieldobservationpoints．Theseobservationsweresynchronize

7、dwithastationthatrecordsthediurnalgeomagneticvariationusingaspecializedin—strumentinstalledunderthesameconditionsasforhigh—precisionmagneticmeasurements．Thepurposeofthiswastoreduceoreliminateshort—periodanddiurnalvariations(Sq)ofthegeomagneticfield．AftertheXingtaiEarthqua

8、ke(1966)，mobileseismo—geomagneticobservationswereinitiated．Differentfromglobalgeomagneticmeasure