“自制四端低值电阻”开放实验教学的实践

发布时间：2018-05-02 05:47

  本文选题：开放实验 + 低阻值　； 参考：《实验技术与管理》2017年09期

【摘要】：将自制四端低值电阻的标定用于开放实验中,不仅可提高学生综合使用实验仪器及动手的能力,还可加深学生对测量不确定度理论知识的理解。实验中让学生自主选择制作材料、实验器材、设计实验电路、确定实验方法。用非等精度测量法测量自制四端低值电阻。应用测量不确定度理论,采用加权平均法,给出测量结果的不确定度。开放模式的实验教学设备利用率高、实验效果好,有利于培养学生的实践和创新能力。
[Abstract]:The calibration of self-made four-terminal low-value resistor in open experiment can not only improve the students' comprehensive ability to use experimental instruments and practice, but also deepen the students' understanding of the theoretical knowledge of measurement uncertainty. In the experiment, students are allowed to choose the material, equipment, circuit and method. The self-made low-value resistance of four ends was measured by non-equal precision measurement method. The uncertainty of measurement results is given by using the theory of uncertainty and the weighted average method. The open mode experiment teaching equipment utilization rate is high, the experiment effect is good, is advantageous to train the student's practice and the innovation ability.
【作者单位】： 兰州交通大学数理学院;
【基金】：甘肃省自然科学基金项目(148RJZA027) 兰州交通大学实验教改项目(201623)
【分类号】：G642.423;O441.1-4
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本文编号：1832604