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| Piecewise Sampling and Measurement of Staircase Waveform |
| LU Zu-liang,YANG Yan,HUANG Lu,WANG Lei |
| National Institute of Metrology, Beijing 100029, China |
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Abstract Staircase waveform is a bridge from DC to AC measurement, and will be a potential bridge from static to dynamic state. A concept of piecewise sampling is proposed. Under this concept the characteristics of staircase waveform is analyzed. The measurement approach for the staircase waveform is discussed with the experiments to overcome the impact from the transient effect and the Gibbs phenomenon. For a typical analogue-to-digital converter with antialiasing filter the selection of the parameters of piecewise sampling is presented for the precise measurement. The experimental results indicate that the impact from fluctuation of samples values to the fundamental amplitude and the root mean square is greatly reduced by the piecewise sampling.
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Received: 06 July 2018
Published: 07 January 2019
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Corresponding Authors:
Zuliang LU
E-mail: luzl4810@qq.com
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| About author:: 陆祖良(1948-),江苏南通人,中国计量科学研究院首席研究员(退休),主要从事阻抗和电能计量领域的研究。Email:luzl@nim.ac.cn |
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2019, Vol. 40 
