摘要
介绍用灵敏电流计测量高电阻的原理和方法;在两次测量中,利用光标偏转格数相同,用比较法得到被测电阻的阻值,并进行误差分析,发现由回路灵敏度不足产生的误差不可忽略,提出了减小误差的措施。
The measuring principle and method of higher resistance with the sensitive galvanometer are introduced. When it is the same to count from cursor deflection of the sensitive galvanometer in the measurement, it got the value of the measured resistance with the comparative method resistance. After the error analysis, we find that the error of the galvanometers sensitivity caused by the inefficient sensitivity of the loop can＇ t be abbreviated, thus put up measures to decrease errors.
出处
《贵州教育学院学报》
2006年第4期32-34,41,共4页
Journal of Guizhou Educational College(Social Science Edition)
关键词
灵敏电流计
高电阻
比较法
回路灵敏度
sensitive galvanometer
higher resistance
comparative method
sensitivity of the loop
