摘要
首先介绍了一种矢量测量的新原理,并对该测量原理的幅度误差和相位误差进行了理论分析。然后,仿真分析了谐波分析的矢量误差,并给出了相应的实验测试结果。结果表明,相位测量的理论误差为零,幅度测量的理论误差可用修正系数消除,且使用较低位数的D A转换器,可得到高准确度的结果。最后,给出此种矢量测量原理应用的几种方案。
A novel vector measuring principle is presented. The theoretical analysis and the computer simulation are described separately to the amplitude and phase errors existed in the principle and to the harmonic analysis error while the harmonic analysis experimental results are given. The results show that the phase error of the vector measurement is zero, and amplitude errors can be eliminated, and high measurement accuracy can be obtained by using low bit D/A converter. Finally, several application schemes based on the vector measuring principle are also given.
出处
《计量学报》
CSCD
北大核心
2004年第2期153-157,共5页
Acta Metrologica Sinica
基金
黑龙江省自然科学基金(E01 15)
高等学校骨干教师资助计划(1087)
关键词
计量学
矢量测量
模拟数字混合乘法器
Metrology
Vector measuring
Analog-digital mixed multiplier
