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首页> 外文会议>2013 Abstracts IEEE International Conference on Plasma Science >Study of the ceramic capacitor dielectric for pulsed power
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Study of the ceramic capacitor dielectric for pulsed power

机译：脉冲功率用陶瓷电容器电介质的研究

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In this work it is shown that the dielectric constant or the capacitance of commercial capacitors are dependent on the following parameters: the voltage applied, the charge and discharge of pulse repetition rate, temperature, and frequency. The study of these parameters is essential for applications of ceramic capacitors in high-energy storage systems and in nonlinear transmission lines (NLTLs) used for RF generation. To accomplish that two basic circuits are described for measuring the capacitance or ε: 1) on static conditions (i.e. by varying the charging DC voltage across C for checking the dielectric nonlinearity)1 and 2) on dynamic conditions (under pulse repetition rate or temperature variation) to determine the respective C variation. Finally, the ESR (equivalent series resistance) of the dielectric and its dissipation factor are also measured using an Agilent LCR bridge/ 30 MHz to verify the ceramic capacitor losses, a key issue for NLTL applications2 as the line attenuation constant increases with frequency.
机译：这项工作表明，商用电容器的介电常数或电容取决于以下参数：施加的电压，脉冲重复频率，温度和频率的充放电。这些参数的研究对于陶瓷电容器在高能量存储系统中以及在用于产生射频的非线性传输线（NLTL）中的应用至关重要。为此，描述了两个基本电路来测量电容或ε：1）在静态条件下（即通过改变C两端的充电DC电压以检查介电非线性） 1 和2） （在脉冲重复频率或温度变化下）以确定相应的C变化。最后，还使用安捷伦LCR电桥/ 30 MHz测量了电介质的ESR（等效串联电阻）及其耗散因数，以验证陶瓷电容器的损耗，这对于NLTL应用 2 来说是一个关键问题。线路衰减常数随频率增加。

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