基于数字图像处理技术的绝缘子表面电荷测量标度问题的研究

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Abstract In the field of high voltage engineering, it is an important subject to measure the surface charge distribution accurately on insulator surface. In this paper, an image processing technique with Wiener inverse filter is introduced to the charge distribution measurement. When an electrostatic probe is used to measure the surface charge on an insulating plate of constant thickness, the measuring system could be regarded as a shift-invariant system. Using 2-dimensional Fourier transformation, the calibration is carried out in the frequency domain. In order to suppress the influence of the noises on the measured signals, Wiener inverse filter is employed. The results show that the calibration time is saved much for this signal processing calibration technique, and the accuracy of calculation also can be improved.

Key words： Insulator capacitance probe Fourier transformation Wiener filter calibration

Received: 12 July 2007 Published: 17 February 2014

PACS:

TM835.1

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	Articles by authors
	Yin Feng
	Wang Feng
	Mao Jianxu
	Qiu Yuchang

Cite this article:

Yin Feng,Wang Feng,Mao Jianxu等. Research on the Calibration of the Electrostatic Probe Based on Digital Image Processing[J]. Transactions of China Electrotechnical Society, 2009, 24(7): 16-20.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2009/V24/I7/16

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