摘要
用欧姆计测量电阻时,通常都使用1/5R_中～5R_中这段读数范围。但是因为这段范围太大,以至使用两端时会造成很大误差。本文从理论上推导出最佳使用范围,并给出合理的实用范围。
The range of (1/5)R中-5R中 in an ohmmeter is usually selected in measuring a re-sistance. Since this range is too wide, considerable errors may be resulted when the ohmmeter is used at its two ends. The optimum reading range is then derived theoretically in this paper, and its reasonable scope of application is given.
出处
《石家庄铁道学院学报》
1994年第1期88-92,共5页
Journal of Shijiazhuang Railway Institute
关键词
中值电阻
精度
电阻表
读数范围
middle value resistance
precision
full scale current
