“MR-1型电源内阻测试仪”在我国研制成功。1985年12月27日在南京大学通过了由江苏省高等教育局、轻工部、安徽省电子工业局组织的省级鉴定。该仪器由轻工部化学电源研究所提出课题,南京大学与化学电源研究所共同设计,並与马鞍山无线电厂一起研制。南京大学成功地将微弱信号检测技术应用于该仪器,能从电池内阻中精确地测量电池的欧姆电阻,並能测量电池的开路电压与负荷电压,同时也可用于炭棒 “MR-1-type power resistance tester” successfully developed in China. December 27, 1985 at Nanjing University adopted by the Jiangsu Provincial Department of Higher Education, Ministry of Light Industry, Anhui Provincial Electronics Industry Bureau organized the provincial appraisal. The instrument proposed by the Ministry of Light Industry Chemical Power Research topic, Nanjing University and Chemical Power Institute jointly designed and developed with the Ma On Shan radio plant. Nanjing University successfully applied the weak signal detection technology to the instrument, which can accurately measure the ohmic resistance of the battery from the internal resistance of the battery, measure the open circuit voltage and load voltage of the battery, and can also be used for the carbon rod