| dIdD矢量磁力仪对周围磁环境的干扰分析 |
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| 引用本文： | 邱雪峰,季光巍,刘晓刚,王应建,杨权.dIdD矢量磁力仪对周围磁环境的干扰分析[J].海洋测绘,2020,40(1):69-72. |
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| 作者姓名： | 邱雪峰 季光巍 刘晓刚 王应建 杨权 |
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| 作者单位： | 61365部队,天津,300140;西安测绘研究所,陕西西安,710054 |
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| 基金项目： | 国家自然科学基金(41774018) |
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| 摘 要： | 在使用dIdD矢量磁力仪进行地磁测量时发现,矢量磁力仪本身也会影响磁场,并对周围其他磁力测量仪器形成干扰。为了有效验证矢量磁力仪的干扰问题,设计了专门的室外环境试验和室内环境试验,通过比较矢量磁力仪开机和关机两种状态下不同位置处测得的磁场总强度变化,得出使用dIdD矢量磁力仪时对周围0.5 m范围内地磁场影响会大于40 nT,随着距离增加干扰会逐渐减弱,距离3.5 m时影响在0.2 nT左右。建议与其他磁力仪共用时,应保持一定距离。
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| 关 键 词： | 地磁测量 矢量磁力仪 总强度变化 干扰影响 试验验证 |
The Interference Analysis of dIdD Vector Magnetometer to the Geomagnetic Field Around |
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| QIU Xuefeng,JI Guangwei,LIU Xiaogang,WANG Yingjian,YANG Quan.The Interference Analysis of dIdD Vector Magnetometer to the Geomagnetic Field Around[J].Hydrographic Surveying and Charting,2020,40(1):69-72. |
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| Authors: | QIU Xuefeng JI Guangwei LIU Xiaogang WANG Yingjian YANG Quan |
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| Abstract: | When using the dIdD vector magnetometer for geomagnetic surveying,the geomagnetic field around is changed a little.The tests of outdoor and indoor condition are introduced in this article to verify the interference.We get the F changes at different places by comparing the vector magnetometer when it is power on or power off.The geomagnetic field is influenced greater than 40nT in 0.5 meter apart from the dIdD vector magnetometer.The longer the distance is,the less the interference is.The interference is about 0.2 nT when the distance from dIdD is 3.5 meters.We suggest that the distance should be kept between the vector magnetometer and others. |
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