四档位智能型数字兆欧表的设计

Design of Four-gear Intelligent Digital Megger

针对现有兆欧表档位少、测量精度低、适用范围小的问题,采用单片机为核心控制器件,蓄电池供电,以提高数字兆欧表的测量精度和适用范围,实现兆欧表的多档化、数字化和智能化。该设备已应用于工程实践,实践证明该数字兆欧表测量精度高、性能稳、适应性广且操作简单、携带方便。

Concerning on the problem of less gears,low measurement precision and narrow application range of the current megger,this design uses mierocontroller as the core control device and storage battery as the power resource to improve measurement precision and application range of digital megger and to realize their multi-grade selection, digitization and intellectualization. The design was applied in engineering practice. It has been found that the digital megger was precise in measurement, stable in performance, wide in application, simple tooperate and convenient to carry.