30 kHz^30 MHz电压基准研究

Research on the NationaI VoItage Standard for 30 kHz^30 MHz

中国计量科学研究院研制了30 kHz^30 MHz频率范围内基于同轴热电转换器的直流—交流电压转换器，并基于该转换器建立了该频段的低频电压基准装置。理论分析与实验验证结果表明：该基准装置在30 kHz^30 MHz频率范围内，0.1~100 V量程中，不确定度为0.01%~0.1%（k=2），填补了现有国家电压计量基准装置在1~30 MHz频段范围内的空白。

Based on coaxial thermal voltage converters, the national voltage standard for 30 kHz -30 MHz has been established by National Institute of Metrology （ NIM ）. The results of theoretical analysis and experiments indicate that in the frequency band of 30 kHz to 30 MHz and voltage range 0. 1 V to 100 V, the uncertainty is 0. 01% to 0. 1% （k =2）. This accomplishment has filled the gap of the national voltage standard in 1 - 30 MHz.