定量实验的实验设计─—实验次数的设计方法

APPLICATION OF ERROR THEORY IN DESIGNING PHYSICS EXPERIMENT AND DISPOSING DATA

实验设计是任何实验实施之前的必不可少的重要环节。定量实验的设计依据是对实验结果提出的误差限要求。设计的目的是为了克服偶然误差，通过数据处理，科学地给出附合误差限要求的，必须的测量次数。

Error is inevitable in any quantitative experiment and error theory comesfrom raising of reliability of measurement result. Data disposal is the procedurein which we can use error theory to sum up, arrange and process the data andgive out result. The basic ordinary process of experiment data may give out simple result ex-pressed in digital number, but the accuracy and reliability remains unknown.But advanced process of data on the basis of error theory can give out notonly experiment result but also its accuracy and reliability expressed quantita-tively The paper elucidated the method through the experiment ″measuring vis-cious coefficient of ethyl by Ostwald viscometer″.