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。它能够快速精确地测量导体的直流电阻,并能自动转换显示其20℃、单位长度(1 km)的电阻和20℃时的电阻率。该仪器还可利用蓄电池供电,便于现场使用。
A new type intelligent instrument for the measurement of conductor dc resistance has been developed on the principle of small current/voltage ratio. The instrument can measure conductor dc resistance fast and accurately. It can also convert and display the measure value automatically to the resistance at 20 ℃ based on 1 km conductor. Besides, the instrument features battery power supply and easy field use.
出处
《物理测试》
CAS
2003年第6期20-21,43,共3页
Physics Examination and Testing
