下载后可任意编辑讨论性实验报告电位差计及其应用学 号 12151171 学 生 姓 名 段 毓 第二 作者 学号 12151150 第二 作者 姓名 周 亮 宇 12 月 12 日下载后可任意编辑摘 要电位差计的测量准确度高, 且避开了接入误差, 但它操作比较复杂, 也不容易实现测量的自动化。现今, 电压测量已逐步被数字电压表所代替, 其因为内阻高、 自动化测量容易, 得到广泛的应用。尽管如此, 电位差计作为补偿法的典型应用, 在电学实验中仍有重要的训练价值。另外, 直流比较式电位差计仍是当前准确度较高的电压测量仪表, 在数字电压表及其它精密电压测量仪表的检定中, 常作为标准仪器使用。 关键字: 电位差计, 补偿法下载后可任意编辑Abstract Potentiometer is an instrument for measuring the potential (voltage) in a circuit. The accuracy of the potentiometer is high and it can avoid the errors made when wires of power meters are connected. But operating the potentiometer is very complex. And it is not easy to achieve measuring automatically. Today, the instrument for measuring the voltage is replaced by digital voltmeters. The digital voltmeter has high internal resistance and it can measure the voltage automatically. So it is used widely. Nevertheless, the potentiometer still has its important value of experiment as a typical application of the compensation method. In addition, comparing DC-potentiometer is still the most accurate instrument measuring the high voltage. And it is often used as the standard instrument in the test of digital voltmeters and other precisely-measuring-voltage instruments. Keywords: Potentiometer, compensation method 下载后可任意编辑目 录摘 要........................................................................................................................................1Abstract.....................................................................................................................................2目 录..................
