一、前言随着电能消耗的日益增加,目前已采用更高的电压和电流来进行电能的传输,50万伏到100万伏的大功率输电越来越普遍。因此用互感器来测高电压,大电流将发生困难,尤其是绝缘问题、干扰的影响等更为突出。近几年来各国都在研制用其他新原理来测量高电压、大电流的方法。利用激光来测量即是其中之一。本文将介绍目前国外用激光测量电压、电流以及从而测量功率的基本原理。 I. Introduction With the increasing consumption of electric energy, higher voltage and current electric energy have been used for transmission of electric energy. The transmission of high-power 500,000 to 1 million volts is becoming more and more common. Therefore, the use of transformers to measure high voltage, high current will be difficult, especially insulation problems, the impact of interference and so on are more prominent. In recent years, all countries are developing new methods to measure high voltage, high current method. One of them is the use of laser to measure. This article will introduce the current foreign measurement of voltage, current and thus the basic principle of measuring power.