我国标准电阻检定最常用的标准设备是三次平衡电桥,主要型号有QJ-40、XQJ-3和XQJ-9。三次平衡电桥可以用按元件检定法进行检定。但按元件检定需专用设备,技术上较复杂,电桥也必须具有相应的结构,故难于实行。本文介绍的整体检定法就避免了这些问题,利用其本身设备,在工作状态下进行检 China’s standard resistance test is the most commonly used standard equipment is three times the balance bridge, the main models are QJ-40, XQJ-3 and XQJ-9. Three balanced bridge can be used by component verification method for testing. However, according to the components required special equipment verification, technical complexity, the bridge must also have the appropriate structure, it is difficult to implement. This article describes the overall test method to avoid these problems, the use of its own equipment, in the working state seized