四端法测量在照明产品性能测试中的意义

摘要

四端法测量电参数是许多测试标准中的规定要求。从理论上分析了四端法的优势原因，并以实验数据进行了例证。结果表明：严格按照四端法实施测量，对于准确获得低压、大电流照明产品的性能参数意义重大，测试数据的重复性和准确性都会改善。%Four-terminal method is required in many measurement standards .This article explains the reason for the significance of four -terminal method in theory and practice.The results show that it is important to do a good performance measurement of a lighting product , especially for low-voltage high-current ones.Four-terminal method helps to improve the accuracy and repeatability .