| ELF电磁波穿透海底管道最佳频率研究 |
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| 引用本文： | 王莹莹,赵宏林,张蓬,张海英. ELF电磁波穿透海底管道最佳频率研究[J]. 石油机械, 2007, 35(9): 1-3 |
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| 作者姓名： | 王莹莹 赵宏林 张蓬 张海英 |
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| 作者单位： | 中国石油大学(北京)机电工程学院 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 针对海底遥控封堵隔离系统对极低频(ELF)电磁波的要求,采用材料为16Mn、规格为φ406mm×8.7mm的管道以及CD200W硅钢铁心,制作一绕组为180匝、另一绕组为400匝的自感线圈,并利用自制TDA2030低频功率放大电路,进行实验室模拟实验。结果表明,ELF电磁波频率在10~30Hz之间时,能够很好地磁化穿透管道,且在20Hz时感应电动势有最大值,为最佳穿透频率,通过示波器观察,曲线波形较稳定。
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| 关 键 词： | 遥控封堵 海底管道 ELF电磁波 信号放大 最佳穿透频率 |
| 修稿时间： | 2007-06-25 |
Study of optimum frequency for ELF electromagnetic wave in subsea pipeline |
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| Abstract: | Considering the requirement of subsea remotely controlled isolation system on ELF electromagnetic wave, the self-induction coils with different circles are made from 16Mn,406×8.7 mm pipeline and 200 W silicon steel CD magnet to simulate the experiment with self-made TDA2030 low frequency power amplification circuit. The conclusion shows that the ELF electromagnetic wave whose frequency is between 10～30 Hz, can pass through the pipeline perfectly, the induced electromotive force has the maximum value of 20 Hz, and the curvilinear wave form is pretty stable by observing with the oscillograph. |
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| Keywords: | remotely-controlled isolation subsea pipeline ELF electromagnetic wave signal amplification optimum penetration frequency |
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