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发明名称
疏密型演示螺线管
摘要
本实用新型涉及一种教学仪器,特别是一种物理教学实验用的疏密型演示螺线管,它由一根带有绝缘外层的导线,在一个两端开口的非金属圆筒上绕制而成。它的主要特征是:上部绕得很密,而下部的线圈则绕得很疏。
申请公布号
CN2777671Y
申请公布日期
2006.05.03
申请号
CN200520017433.4
申请日期
2005.04.20
申请人
陈彪泉
发明人
陈彪泉
分类号
G09B23/18(2006.01)
主分类号
G09B23/18(2006.01)
代理机构
代理人
主权项
一种疏密型演示螺线管,它由一个二端开口的圆筒,和绕在圆筒上的线圈构成,其特征是:螺线管上部的线圈绕得很密,而下部的线圈则绕得很疏,绕得疏的部分每匝线圈间的间距在1厘米至7厘米之间。
地址
321300浙江省永康市明珠学校
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