Non-contact comparison type capacitor charging and discharging method

Abstract

The invention discloses a non-contact contrast type capacitor charging and discharging method, belonging to the field of physics experiment instruments. The method has the advantages that the areas of three capacitor polar plates are different and other conditions are the same, the area of a capacitor is proportional to that of the capacitor polar plates, a process that a mechanical motion barrel or a mechanical motion ball as a charger carrier transfers charge from one polar plate to another polar plate to carry out capacitor charging and discharging can be visually viewed, a process of the charging or discharging of the mechanical motion barrel or the mechanical motion ball and the two polar plates of the capacitor is viewed at the same time, the non contact charging processes of capacitor two polar plates and external power supply two poles is realized, the experiment method is novel, unique, practical and creative, the fabrication is easy, the structure is simple, the effect is obvious, and more education functions are added in classroom teaching.

Description

technical field [0001] The patent of the present invention relates to a demonstration method of non-contact comparative capacitance charging and discharging, which belongs to the field of physical experiments. Background technique [0002] In college physics courses, the capacitance of the electrostatics part is an important content, and the size of the capacitor capacity and the demonstration of the charging and discharging process are also the content that everyone pays attention to. Over the years, in order to help students correctly understand this concept, some demonstration experiments in conjunction with teaching settings, such as the demonstration of capacitor charging and discharging, are mostly connected to the two poles of the power supply and the two poles of the capacitor. The discharge process, or through some sensing elements connected to the computer to demonstrate the delay characteristics of the charging and discharging of the capacitor, etc., but because t...

AI Technical Summary

Problems solved by technology

Over the years, in order to help students correctly understand this concept, some demonstration experiments in conjunction with teaching settings, such as the demonstration of capacitor charging and discharging, are mostly connected to the two poles of the power supply and the two poles of the capacitor. The discharge process, or through some sensing elements connected to the computer to demonstrate the delay characteristics of the charging and discharging of the capacitor, etc., but because the capacitor components are closed, students cannot see the internal structure, students feel abstract, and at the same time think that the charging process of the capacitor The two terminals of the capacitor must be connected (contacted) to the power supply to be charged, and the capacitor cannot be charged without contact. Furthermore, the capacitance of the capacitor is related to the area of ​​the plate, and there is a lack of simultaneous comparative experiments, etc., and there is an urgent need to break through the constraints of the past. Give a new construction device and method to improve students' innovative spirit and practical ability

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