溯源至脉冲驱动型交流量子电压的功率测量系统  

Power Measurement System Referenced to the Pulse-driven AC Josephson Voltage Standard

作　　者：卢奇亮 周琨荔 韩琪娜 施杨 赵建亭[1] 杨雁[1] 徐磊 鲁云峰[1] 黄璐[1] 翟昌伟 屈继峰[1] LU Qiliang;ZHOU Kunli;HAN Qina;SHI Yang;ZHAO Jianting;YANG Yan;XU Lei;LU Yunfeng;HUANG Lu;ZHAI Changwei;QU Jifeng(National Institute of Metrology,Beijing 100029,China;Harbin Institute of Technology,Harbin,Heilongjiang 150001,China;China Jiliang University,Hangzhou,Zhejiang 310018,China)

机构地区：[1]中国计量科学研究院,北京100029 [2]哈尔滨工业大学,黑龙江哈尔滨150001 [3]中国计量大学,浙江杭州310018

出　　处：《计量学报》2024年第11期1585-1592,共8页Acta Metrologica Sinica

基　　金：国家重点研发计划(2021YFF0603702);国家市场监督管理总局科技创新人才计划(QNBJ202301);中国计量科学研究院基本科研业务费(AKYRC2201,AKYRC2309)。

摘　　要：搭建了基于脉冲驱动型约瑟夫森电压标准的交流功率测量系统。通过精密感应分压器和双级电流互感器、采样电阻将交流功率的电压和电流信号转换为两路1 V以内的交流电压,采用切换开关的方式实现两路交流电压至两套交流量子电压标准的溯源。通过计算复数比值得到两路被校准交流电压之间的相位差,经角差修正后得到交流功率源中电压和电流的相位差。系统只需要一套电压比较模块,省去了专用相位测量模块,其相比于现有技术方案具有结构简单的优点。在电压220 V、电流1 A、频率60 Hz、功率因数1.0的测试条件下,测量不确定度为5.6μW/VA(k=2)。所研制系统的测量结果与基于标准功率表的测量结果具有较好的一致性。相关研究工作可以为建立新一代溯源至宽频量子电压的交流功率基准提供参考。An AC power measurement system based on the pulse-driven AC Josephson voltage standard is developed.By using a precision inductive voltage divider,two-stage current transformers and a sampling resistor,the system converts the voltage and current of AC power into two AC voltages within 1 V.They are referenced to two pulse-driven AC Josephson voltage standards.The phase difference between two AC voltages is obtained with complex ratio measurement.The phase difference between the voltage and current of the AC power source is achieved by phase difference correction.This system needs only one set of voltage comparison module and has a simpler structure compared to state-of-the-art system structures.Under the conditions of voltage equal to 220 V,current equal to 1 A,frequency equal to 60 Hz and power factor equal to 1.0,the uncertainty is 5.6μW/VA(k=2).The results are consistent with the results provided by a standard power meter.The mentioned study provides supports for establishing a new generation of AC power standards referenced to the pulse-driven AC Josephson voltage standard.

关 键 词：电学计量 交流功率测量 脉冲驱动型约瑟夫森电压标准 切换开关 复数比值 

分 类 号：TB971[一般工业技术—计量学]