【作者】 王莹莹； 赵宏林； 张蓬； 张海英；

【Author】 Wang Yingying (School of Electromechanical Engineering,China University of Petroleum,Beijing),Zhao Honglin Zhang Peng.

【机构】 中国石油大学(北京)机电工程学院；

【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(?)406 mm×8.7 mm 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10～30 Hz 之间时,能够很好地磁化穿透管道,且在20 Hz 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。更多还原

【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.更多还原