目前,国产的DO-5交流标准源,DO-10精密电压标准检定仪,以及美国进口的5200A交流校准器、510A交流参考标准等低频电压标准源被广泛地用作工作标准开展检定和量值传递工作。那么,如何定期考核标准本身,确保其量值的准确一致呢?为此,作者以5200A交流校准器(以下简称5200A)为例,对其在 At present, the domestically produced standard source of DO-5 AC, DO-10 precision voltage standard, as well as the 5200A AC calibrator imported from the United States and the standard reference source of low frequency voltage such as 510A AC reference standard are widely used as working standards for verification and measurement Pass the job. So, how to regularly assess the standard itself, to ensure accurate and consistent value? To this end, the author of 5200A AC calibrator (hereinafter referred to as 5200A), for example, its in