【摘要】 针对电流、电压等电类参数数据采集的强时间条件 ,分析了同步误差的产生原因 ,建立了一种新型软件采样技术 ,给出了电压电流值和功率测量误差的数学模型 ,提供了减小测量误差的措施 ;应用此种新型软件采样技术 ,不需要增加采样周期数 ,较好地解决了同步误差对测量精度的影响 ,可满足实际需要 .更多还原

【Abstract】 In order to settle the question of data sampling in current, voltage, power that happened in computer control system of transformer test, the causation of synchr onous error was analyzed, and error-free conditions were got. Math models for the errors in volt age, current and average power measuring were established, which is called Synchronous Software S ample Technology. And some measures to reduce these errors are proposed in this paper. By means of this sampling method, the number of sampling periodicity isn’t needed to increase, an d the question that synchronous sample error influences system precision is solved as well.更多还原