电测与仪表Issue(z1)：108-111,4.
数字采样卡幅频与相频特性分析
Analysis to the Amplitude-Frequency and Phase-Frequency of the Digitizer
邓兴启 1张江涛 2冯建 3别红霞 1刘建立4
作者信息
- 1. 北京邮电大学信息与通信工程学院，北京100876
- 2. 中国计量科学研究院，北京100013
- 3. 上海市计量科学研究院，上海201203
- 4. 河南省计量科学研究院，郑州450008
- 折叠
摘要
Abstract
Sampling method has been widely used in power measurement currently, in order to achieve accurate meas-urements of the power, the performance of the digitizer need to be evaluated. Experiments have been made to measure the phase difference and amplitude of the digitizer. DFT algorithm is used to process and analyze the experimental da-ta, and the channel swap method is used to reduce the phase angle difference between two channels. The results show that the performance of digitizer can meet the requirements of power measurement well. This method of power meas-urement is a good solution to the problem of measuring the phase angle between the current signal and voltage signal, thereby increasing the accuracy of power measurement.关键词
数模变换/功率测量和校准/相角差/幅值准确性Key words
digital-analog conversion/power measurement and calibration/phase angle difference/amplitude ac-curacy分类
信息技术与安全科学引用本文复制引用
邓兴启,张江涛,冯建,别红霞,刘建立..数字采样卡幅频与相频特性分析[J].电测与仪表,2013,(z1):108-111,4.
