磁日变数据模拟输出软硬件研制  

Software and hardware design of analog output for the data of magnetic diurnal variation

作　　者：吴成平[1] 于长春[1] 

机构地区：[1]中国国土资源航空物探遥感中心,北京100083

出　　处：《物探与化探》2015年第1期192-195,共4页Geophysical and Geochemical Exploration

基　　金：中国地质调查局项目(12120114026501;12120114042401)

摘　　要：根据磁日变模拟纸卷的打印特点,以数模转换芯片为主体,设计了数模信息转换器机箱及外部接口,利用Visual Basic语言编制了相应的磁日变模拟输出软件,并介绍软件的操作和功能。经过实测数据的打印测试,并与磁日变观测站获得的磁日变曲线进行对比,结果表明,两者在曲线形态、振幅、换挡等方面都具有较高的一致性,验证了笔者研制的软硬件复制磁日变模拟纸卷是可行的,有利于磁日变模拟纸卷的保存与共享,以及航空物探磁日变观测无人值守工作的开展。According to the features of analog record for magnetic diurnal variation, the authors implemented the function of printing the magnetic diurnal variation by using D/A conversion chip. With D/A conversion chip as the main part, the case and connector were de-signed. The software is compiled by Visual Basic, and its function and operation were described. The test of measured data and the comparison with the curve from actual measurement indicate that there exists a high level of consistency between them, and it is feasible to copy analog record of magnetic diurnal variation by using the software and hardware from this paper. The technique is conducive to saving and sharing the analog record of magnetic diurnal variation and promoting the unattended work of magnetic diurnal variation measurement.

关 键 词：航空物探 磁日变 无人值守 软硬件 资料备份 

分 类 号：P631[天文地球—地质矿产勘探]