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首页> 外文会议>Conference on Electrical Insulation amp; Dielectric Phenomena - Annual Report 1973 >Low frequency conduction in oil films and oil-impregnated papers
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Low frequency conduction in oil films and oil-impregnated papers

机译：油膜和浸油纸中的低频传导

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摘要

In dielectric materials, measurements of the low frequency ac conductivity can often reveal certain features of the electrical conduction mechanism which are often not apparent from the data derived through dc or higher frequency ac measurements alone. In the not too distant past, low frequency measurements were difficult and tedious due to the rudimentary measuring techniques available and the associated instrumentation problems. However, the recent development of a low frequency bridge by Harris1 has changed the situation entirely; now low frequency measurements may be carried out with relative ease in the range from 10−3 to 1 Hz, using the Harris technique.
机译：在介电材料中，低频交流电导率的测量通常可以揭示出导电机制的某些特征，而这些特征通常从仅通过直流或更高频交流电测量得出的数据中并不明显。在不太遥远的过去，由于可用的基本测量技术和相关的仪器问题，低频测量是困难且乏味的。但是，Harris1最近开发的低频电桥已经完全改变了这种情况。现在，使用哈里斯技术可以在10−3至1 Hz的范围内相对容易地进行低频测量。

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