可编程交流电压比率标准的研究  

Research on Programmable AC Voltage Ratio Standard

作　　者：张书哲 李瑞霖 陆青[2,3] 迟宗涛 杨雁[2,3] ZHANG Shu-zhe;LI Rui-lin;LU Qing;CHI Zong-tao;YANG Yan(College of Electronics and Information,Qingdao University,Qingdao,Shandong 266071,China;National Institute of Metrology,Beijing 100029,China;Key Laboratory of Electrical Quantum Standards for State Market Regulation,Beijing 100029,China)

机构地区：[1]青岛大学电子信息学院,山东青岛266071 [2]中国计量科学研究院,北京100029 [3]国家市场监督管理总局重点实验室(电学量子基准),北京100029

出　　处：《计量学报》2023年第9期1317-1324,共8页Acta Metrologica Sinica

基　　金：国家自然科学基金(51877202)。

摘　　要：提出了1种基于双级感应分压器和乘法型数模转换器(mDAC)组合分压的宽频可编程交流电压比率标准,实现工作频率范围内的高精度任意交流电压比率的输出。比率标准采用自锁型继电器开关实现双级感应分压器的可编程控制,使用注入电压法实现mDAC分压模块与双级感应分压器输出电压的组合分压。提出了mDAC宽频比率误差修正方法,将比率标准分压精度优化了1个数量级。提出1种交流电压精密比较测量系统,对比率标准的性能进行了测试。可编程交流电压比率标准输出分辨率优于1μV/V,在工作频率50 Hz~10 kHz范围内比差优于0.2μV/V,在1 kHz频率下角差优于1μrad。A broadband programmable AC voltage ratio standard based on the combined voltage divider of a two-stage inductive voltage divider and a multiplying digital-to-analog converter(mDAC)is proposed to achieve high-precision arbitrary AC voltage ratio output within the operating frequency range.The ratio standard adopts the self-locking relay switch to realize the programmable control of the two-stage inductive voltage divider,and uses the injection voltage method to realize the combined voltage division of the mDAC and the two-stage inductive divider.A broadband mDAC ratio error correction method is proposed,which improves the accuracy of the ratio standard by an order of magnitude.A precision comparison measurement system for AC voltage is proposed,and the performance of the ratio standard is tested.The programmable AC voltage ratio standard output ratio resolution is better than 1μV/V,the in-phase error is better than 0.2μV/V in the operating frequency range of 50 Hz~10 kHz,and the quadrature error is better than 1μrad at 1 kHz.

关 键 词：计量学 交流电压比率 感应分压器 乘法数模转换器 

分 类 号：TB971[一般工业技术—计量学]