1.前言本文描述能以同样准确度传递交流电压、电流和功率的校准器。该校准器可产生正弦及任意形状的波形,其基频频率范围为25Hz～2kHz。然而,标准化的交流校准器必需要有准确的直流电压及电阻测量仪器。校准器方框图如图1所示。采用计算机和标准的微处理器技术,将所需的电压和电流波形储存在随机存取存储器中,改变时钟脉冲重 1. Introduction This article describes a calibrator that delivers AC voltage, current, and power with the same accuracy. The calibrator can generate sinusoidal and arbitrary shape of the waveform, the fundamental frequency range of 25Hz ~ 2kHz. However, a standardized AC calibrator must have accurate DC voltage and resistance measurement instruments. Calibrator block diagram shown in Figure 1. Using computers and standard microprocessor technology, the required voltage and current waveforms are stored in a random access memory, changing the clock pulse weight