视频测量仪在电气间隙与爬电距离试验中的应用

The Application of Automatic Video Micro Distance Measurement Instrument in the Clearance and Creepage Distance Test

电气间隙与爬电距离的测量在电气、电子设备安全性检测项目是十分重要的环节。在体积小,集成度高的样品上进行测量,传统的游标卡尺、塞尺塞块等设备的精度已经难以满足试验要求,并且在实际操作上有很大的难度。视频测量仪的加入能够很好地解决这些难题。该文以我们电器产品质量检验研究所(下简称电器所)参与的IFM国际比对试验"PCB板电气间隙、爬电距离测量试验"为例,详细介绍了试验过程以及引入视频测量仪的优越性,并提出视频测量仪在其他测距试验中的应用。

Measurements of the clearance and creepage distance are very important test items of electric &electronic equipments' safety test.But the traditional test method using like vernier calipers& feelers haveserious shortages when the test samples are really small.And the Automatic Video Micro Distance MeasurementInstrument can solve these problems well.This article detailedly introduces the IFM comparariveexperiment "The measurements of the clearance and creepage distance of a printed circuit board" we attended.And the advantage of the Automatic Video Micro Distance Measurement Instrument in our experiment.Also,other applications of the instrument are introduced.