【摘要】 基于双谐振固态特斯拉线圈设计了一种放电间距可调的小尺寸尖端放电实验装置，采用间接测量法测量了针尖与极板之间的距离变化时极板上的感应电压，对尖端放电特性的规律进行系统的研究，并且发现当针尖与极板之间的距离达到临界值时放电现象有明显的突变，在小于临界距离时出现高压电弧放电，大于临界距离时则为针尖端的小角度火花放电。该装置操作便捷，实验现象直观，适用于大学物理教学演示与光电特性研究。更多还原

【Abstract】 An experimental device for small-sized point discharge with adjustable discharge gap is designed based on a dual-resonance solid-state Tesla coil.The indirect measurement method was used to measure the induced voltage on the plate when the distance between the needle tip and the plate changes, and the laws of point discharge characteristics were systematically studied.The study found that when the distance between the needle tip and the plate reaches a critical value, there is an obvious abrupt change in the discharge phenomenon: high-voltage arc discharge occurs when the distance is less than the critical value, while small-angle spark discharge at the needle tip occurs when the distance is greater than the critical value.The device is convenient to operate and has intuitive experimental phenomena, making it suitable for university physics teaching demonstrations and photoelectric characteristic research.更多还原