Error Analysis of Harmonic Measurement Device and Solution

Jiang Chun Xu; Hai Dong Xi; Yu Hui Li; Shu Fan Zeng; Zhi Dong Wu

doi:10.4028/www.scientific.net/AMM.530-531.199

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 530-531Error Analysis of Harmonic Measurement Device and...

Error Analysis of Harmonic Measurement Device and Solution

Abstract:

Aiming at the shortage of lowprecision harmonic wave's analysis in China, and the inadaptability of error transmitting, we analyze the error sources and come up with an approach, Direct Data frequency Synthesizer (DDS), to replace the traditional analog Phase Locked Loop (PLL) to track the frequency of measured signal. Non-integer-period Discrete Fourier Transform (DFT) compensation algorithm is used for processing data. Accordingly a high-precision harmonic standard device is designed in this paper. The final test shows that this solution can efficiently improve the precision.

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Periodical:

Applied Mechanics and Materials (Volumes 530-531)

Pages:

199-203

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.530-531.199

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Online since:

February 2014

Authors:

Jiang Chun Xu*, Hai Dong Xi, Yu Hui Li, Shu Fan Zeng, Zhi Dong Wu

Keywords:

DDS, DFT, Harmonic Analysis, High Precision

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* - Corresponding Author

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