甚低频（VLF, Very low frequency）是指频带由3KHz到30 KHz的无线电波。
文章详细信息 关键词： 甚低频;;低频;;定位 [gap=428]Keywords: very low frequency(VLF);low frequency(LF);positioning
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2.8 甚低频(VLF)测深 甚低频电磁测量(VLF)作为一种浅层地球物 理探测技术,主要应用在金属矿床找矿勘查,探测地 下含水构造,喀斯特溶洞和...
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3～30K赫兹的电磁波被称为甚低频(VLF-Very Low Frequency)，换算过来，其波长居然达到了100千米至1000千米，所以也被叫做“超长波”。
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航空甚低频电磁系统 airborne proton magnetometer
甚低频天线 [电讯] very low frequency antenna
甚低频电磁仪 [地物] very low frequency electromagnetical receiver
甚低频发射 [通信] vlf emission ; very low frequency emission
甚低频辐射 vlf radiation ; very low frequency radiation
甚低频接收机 very low frequency receiver
甚低频法 very low frequency method ; very low freque
甚低频二踪示波器 VLF dual trace oscilloscope
多频甚低频技术 multiple frequency VLF technique
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在大型电力系统中存在有自生的甚低频系统振荡。
In large interconnected power system, there have been spontaneous system oscillations at very low frequencies.
分析甚低频电磁波传播路径与方式，给出场强的计算公式。
By analyzing transmission pathway and mode of VLF radio wave, calculation formula of field intensity is given.
本文对大功率甚低频发射天线用绝缘子的选型进行了研究。
The selection of the insulator applied for a large power very low frequency transmitting antenna were studied.
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