针对数字式电阻测试仪的设计，介绍了数字式电阻测试仪的设计方案及其基本原理，并着重介绍了数字式电阻测试仪各单元电路的设计思路，原理及整体电路的的工作原理，控制器件的工作情况-Digital Resistance Tester for the design, introduces the Digital Resistance Tester' s design and its basic principles, with an emphasis on the digital circuit resistance tester the unit' s design ideas, principles and the working principle of the whole circuit, control devices work