摘要
主要讨论了在EH4测量时,罗盘的校正前后磁探头磁坐偏角对EH4测量结果的影响,经过野外试验研究,罗盘未校正时,当磁坐偏角大于5°时,引起视电阻率均方误差大于规范要求15%,因此在野外工作之前必须做好对仪器的校正,以确保采集数据的准确。
This article mainly discussed magnetic coordinates declination before and after correction compass magnetic probe influences on the result of EH4 measurement in the EH4 measurement. And through field experiment research, it is observed that the mean square error of apparent resistivity caused is greater than 15% acquired in standard when the compass was not corrected, and magnetic coordinates declination is greater than 5°. So it should be make sure that the instruments had been corrected before field work, to ensure that the collected data was accurate.
出处
《山西建筑》
2013年第5期207-208,共2页
Shanxi Architecture
关键词
EH4
罗盘
均方误差
EH4, compass, mean square error
作者简介
杨拾鹏（1983-），男，助理工程师；
侯广（1986-），男，助理工程师；
高庆华（1982-），男，助理工程师
