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一、前言我国的电压单位基准器(或简称电压基准)和国际上一样,采用经过严格挑选的若干个标准电池组成,并用其成组的电动势平均值来体现和保存伏特这个电压单位量值的。由成组标准电池构成的实物基准器,随着时间的推移,总会有所变化。为了核验这些基准器的稳定性,确定国家之间电单位尺度的实际比例关系以及统一国际电单位尺度,国际权度局每三年进行一次电单位基准器的国际比对,并以国际权度局的电单位尺度为准,公布各国电单位尺度与国际权度局电单位尺度之间的差值,以此保持国际间电单位的统一。
First, the foreword China’s voltage unit base (or referred to as the voltage reference) and internationally, using a carefully selected number of standard battery composition, and with a group of average EMF to reflect and save the volt unit of the magnitude of the voltage . The physical reference made up of a set of standard batteries will always change over time. In order to verify the stability of these baselines, determine the actual scale of electricity-sector scales between countries, and harmonize the international electricity unit scales, the International Bureau conducts international comparisons every three years to the electricity unit baselines, The electricity unit scale of the bureau shall prevail and the difference between the electricity unit scale of each country and the power unit scale of the international authority shall be announced in order to maintain the unification of the electricity units in the world.