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现代科学技术许多领域的发展向交流宽频带的功率和能量的测量准确度提出了更高的要求。但是,直到现在这个准确度还是远低于电压和电流的测量准确度。由于在仪器结构上采取措施修正了系统误差和对测量结果采取现代的数学处理方法,使交流量的测量准确度有显著提高。但是,这些方法还不能减少交流量和直流量替代比较的误差。该误差在测量
The development of many fields of modern science and technology places higher demands on the measurement accuracy of power and energy in broadband communication. However, until now the accuracy was still far below the measurement accuracy of voltage and current. Due to the structure of the instrument to take measures to correct the system error and the measurement results to take a modern mathematical approach, the exchange of measurement accuracy has significantly improved. However, these methods have not been able to reduce the error of alternative comparison between AC and DC. The error is measured