新课标背景下可视化电磁铁磁性强弱探究仪的设计

Design of Visual Electromagnet Magnetic Strength Probe under the Background of New Curriculum Standard

摘要: 针对中学物理“探究电磁铁磁性强弱影响因素”实验存在装置集成度低而降低操作效率，实验材料容易被磁化而影响实验效果缺陷，设计了可视化电磁铁磁性强弱探究仪，将不易观察、测量的电磁铁磁性强弱，转化为电子秤示数的变化量，从而实现探究电磁铁磁性强弱的影响因素。该实验仪操作简捷且现象直观可视，有效突破了传统实验的局限，为初中物理电磁铁实验教学提供了可推广的实验方案。

Abstract: Aiming at the defects of the middle school physics experiment “Exploring the Factors Affecting the Magnetic Strength of Electromagnets”, such as low device integration which reduces operational efficiency, and experimental materials that are easily magnetized which impairs experimental results, we have designed a Visualized Tester for Exploring Electromagnet Magnetic Strength. This tester converts the magnetic strength of electromagnets, which is difficult to observe and measure directly, into the variation of readings on an electronic balance, thus enabling the exploration of factors influencing electromagnet magnetic strength. The tester features simple operation and intuitive, visible phenomena, effectively overcoming the limitations of traditional experiments. It provides a scalable experimental solution for teaching electromagnet experiments in junior high school physics.