Research on Error Corrections and Evaluations of Digital Recorders for Measurments of High Voltage and High Current Impulses

本研究是针对高电压和高电流脉冲的测量技术的改进，以及随后的结果已经获得.1。一个高准确性参考脉冲发生器已被开发为脉冲测量系统的校准。在产生脉冲的最大值中，准确性为<加减> 0.3%。在<micrn>IEC出版物60中指定的错误时，按顺序测量标准脉冲（1.2/50 s），必须使用40/ s以上的采样率和8位以上的分辨率的数字记录器<micrn>。Numerical Laplace Transform是用于重建输入脉冲波的有效方法之一。However，在这种情况下，这些测量的波浪表格的阅读错误应该像可能的那样低。如果使用一个旁路电容作为高电压臂的一部分，或作为低电压臂的感应电阻，对脉冲测量系统的反应可能会得到改善。特别是，这些方法的组合提高了对反应的更明确的认识。一种具有高质量的电阻电容器，用于脉冲测量的高质量已被开发出来，以使电阻的大二极管常数有效。

This research aimed at the improvements of the measuring techniques ofr high voltage and high current impulses and the following results have been obtained.1. A high accuracy reference impulse generator has been developed for the calibration of impulse measuring systems. The accuracy is within <plus-minus>0.3% for the generated impulse crest valuテ2. In order to measure the standard impulse (1.2/50 <micrn>s) within the errors specified in the IEC publicaton 60, it is necessary to use a digital recorder with sampling rate above 40/<micrn>s and resolution above 8 bit.3. The Numerical Laplace Transform is one of the effective methods for reconstructing the input impulse wave using the measured impulse wave and step response wave of the measuring system. However, in this case, the reading errors of these measured wave form should be as low as possibel.4. By using a by-pass capacitance on a part of the high voltage arm of a resistance divider or an inductive resistor as the low voltage arm, the response of the impulse measuring system could be improved considerably. Especially, the combination of these methods improves the response remarkably.5. An electrolyte resistance-capacitance divider with high quality for impulse measurments has been developed by utilizing the large dielectric constant of the electrolyte.