惠斯通电桥实验中电桥灵敏度的影响因素探究
崔嘉熙,罗云荣∗
湖南师范大学 物理与电子科学学院,湖南 长沙 410081
Exploration of Factors Affecting The Sensitivity ofThe Wheatstone Bridge Experiment
CUl Jiaxi,LUO Yunrong
School of Physies and Electronics, Hunan Normal University,Changsha, Hunan 410081 ,China
摘要
通过构造简单的对勾函数,探究惠斯通电桥实验中比率臂取值、桥臂电阻取值等因素对电桥灵敏度的影响规律。 分析发现比率臂取值对电桥灵敏度的影响取决于比率臂的调节方式,通过调节不同的桥臂电阻改变比率臂,其对电桥灵敏度的影响规律不同;当比率臂取值固定时,存在使电桥灵敏度取极大值的桥臂电阻阻值。
关键词:
惠斯通电桥
电桥灵敏度
比率臂取值
桥臂电阻阻值
Abstract:
This article explores the influence of factors such as the ratio arm value and bridge arm resistance/alue on the sensitivity of the Wheatstone bridge experiment by constructing a simple Nike function. Themalysis shows that the influenee of the ratio arm value on the sensitivity of the bridge depends on theidjustment method of the ratio arm.By adjusting different bridge arm resistanees to change the ratio arm , thenlluenee of the ratio arm on the sensitivity of the bridge is dilrerent: When the ratio arm value is fixed .thereexist a set of bridge arm resistance values that maximizes the sensitivity of the bridge.
Key words:
Wheatstone bridge
sensitivity
ratio arm value
bridge arm resistance value
出版日期: 2025-02-25
发布日期: 2025-02-25
整期出版日期: 2025-02-25
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