Point discharge device for physical teaching
A cutting-edge discharge and physical technology, applied in teaching models, educational tools, instruments, etc., can solve the problems that the cutting-edge discharge distance cannot be automatically adjusted, the discharge demonstration cannot be realized, and students cannot understand the impact, etc. It achieves simple structure, high safety, The effect of deepening understanding
Inactive Publication Date: 2018-01-19
杜鹏伟
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Problems solved by technology
However, there are some disadvantages in the design of the experimental equipment currently used for cutting-edge discharge demonstrations. For example, the distance of the cutting-edge discharge cannot be automatically adjusted. It is impossible to understand the influence of the discharge distance on the discharge phenomenon. Therefore, how to design a safe and stable cutting-edge discharge demonstration experimental equipment with adjustable discharge distance is an urgent matter for physical experiments.
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[0019] The present invention is specifically described below in conjunction with accompanying drawing, as Figure 1-3 As shown, a cutting-edge discharge device for physics teaching includes a base plate 1, a control box 2, a booth 3 and a protective cover 4, the control box 2 is fixed on the base plate 1, and the booth 3 is fixed on the control box 2 , the protective cover 4 is fixed on the booth 3, a fixed discharge device and a mobile discharge device are arranged on the booth 3 and inside the protective cover 4, and the fixed discharge device is fixed on the booth 3 and inside the protective cover 4 The first column 5 on one side, the first through hole 6 opened on the upper end of the first column 5 and passing through the first column 5, the first metal discharge rod 7 inserted through the first through hole 6 and fixedly connected with the first column 5 , the second through hole 8 opened on the upper end of the first column 5 and located below the first through hole 6, ...
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The invention discloses a point discharge device for physical teaching. The point discharge device comprises a bottom plate, a control box, an exhibition stand and a protective cover; the control boxis fixed on the bottom plate; the exhibition stand is fixed on the control box, the protective cover is fixed on the exhibition stand, a fixed discharge device and a movable discharge device are arranged on the exhibition stand and located in the protective cover, the control box is internally provided with a distance adjusting device, a rectifier, a current amplifying device and a direct currentregulator, a controller is arranged on the front end surface of the control box, a switch, a current adjusting button, and a distance adjusting button are arranged on the controller, a power connection line is arranged on one side of the control box, a power connector is connected to the power connection line, the controller is electrically connected with a speed reducing motor, the rectifier, thecurrent amplifying device, the direct current regulator, the power connection line and a power indicating lamp. The device has the advantages of being simple in structure and high in practicability.
Description
technical field [0001] The invention relates to the technical field of physics teaching equipment, in particular to a cutting-edge discharge equipment for physics teaching. Background technique [0002] Point discharge is a kind of discharge phenomenon that occurs on the sharp part of an object under the action of a strong electric field, which belongs to a kind of corona discharge. The charge at the tip of the conductor is particularly dense, and the electric field near the tip is particularly strong, and a tip discharge will occur. Through the cutting-edge discharge experiment, students can intuitively understand the principle of cutting-edge discharge and consolidate the knowledge learned in the classroom. However, there are some disadvantages in the design of the experimental equipment currently used for cutting-edge discharge demonstrations. For example, the distance of the cutting-edge discharge cannot be automatically adjusted. The influence of the discharge distanc...
Claims
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IPC IPC(8): G09B23/18
Inventor 不公告发明人
Owner 杜鹏伟