摘要
采用小电流电压比率法测量原理 ,研制了一种智能型的电缆导体直流电阻测量仪。它能够快速精密地测量导体的直流电阻 ,并能自动转换显示其 2 0°C、单位长度 (1km)的电阻和 2 0°C时的电阻率。该仪器还具有液晶汉字化显示、蓄电池供电和便于现场使用等特点。
A new type intelligent instrument for the measurement of conductor dc resi stance has been developed based on the principle of small current/voltage ration. The instrument can measure conductor d.c. resistance fast and accurately and can convert and display the measured value automatically to the resistance at 20°C based on 1 km conductor. Besides, the instrument features liquid crystal display of Chinese characters, battery power supply and easy field use.
出处
《电线电缆》
北大核心
2002年第1期40-42,共3页
Wire & Cable
关键词
电缆导体直流电阻测量仪
研制
电阻值
测量精度
instrument for the measurement of conductor dc resistance
small current/voltage ratio method
principle
key technology
measured value
