Lenz's law demonstration device based on 3D printing and single-chip microcomputer technologies
A Lenz's law and 3D printing technology, applied in the field of Lenz's law demonstration devices based on 3D printing and single-chip technology, can solve problems such as unsatisfactory experimental results, and achieve the effect of facilitating the study of control variables, precise functions, and precise adjustment
Inactive Publication Date: 2019-10-08
上海市行知实验中学 +1
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Problems solved by technology
[0006] The invention discloses a Lenz's law demonstration device based on 3D printing and single-chip microcomputer technology, which is used to solve the problem of unsatisfactory experimental results in the prior art
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[0021] The present invention will be further described below in conjunction with accompanying drawing and embodiment:
[0022] figure 1 It is a structural schematic diagram of the present invention based on 3D printing and single-chip microcomputer 13 technology Lenz's law demonstration device, figure 2 It is the internal circuit diagram of the Lenz's law demonstration device based on 3D printing and single-chip microcomputer 13 technology of the present invention, please refer to figure 1 , figure 2 , a Lenz's law demonstration device based on 3D printing and single-chip microcomputer 13 technology, comprising: a housing 1, inside which is provided: a DC power supply 2, a DC boost module 3, the DC boost module 3 and the DC power supply 2 connections, a cement resistor 6 and an electrolytic capacitor 5 are connected in series between the output ends of the DC boost module 3, which also includes a coil 8 and a thyristor 7, the gate of the thyristor 7 is connected to the pos...
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The invention discloses a Lenz's law demonstration device based on 3D printing and single-chip microcomputer technologies. The device comprises a shell; a direct-current power supply and a direct-current boosting module are arranged in the shell; the direct-current boosting module is connected with the direct-current power supply; a cement resistor and an electrolytic capacitor are connected between the output ends of the direct-current boosting module in series; the device is characterized by further comprising a coil and a thyristor; the gate electrode of the thyristor is connected with thepositive electrode of the power supply; the negative electrode of the thyristor is connected between the electrolytic capacitor and the negative electrode of the power supply; the device further comprises a single-chip microcomputer; and the single-chip microcomputer is connected with the direct-current boosting module. By means of replaceable coils and matched different experimental body structures, different effect demonstration can be realized, so that the experiment effect can be more vividly displayed for students. More importantly, the single-chip microcomputer is added for measurement and control, so that accurate adjustment and function expansion can be realized. A traditional qualitative experiment is quantified, so that the control variable research is facilitated.
Description
technical field [0001] The present invention relates to a demonstration device, in particular to a demonstration device of Lenz's law based on 3D printing and single-chip microcomputer technology. Background technique [0002] Lenz's Law: The induced current has such a direction that the magnetic field of the induced current always hinders the change of the magnetic flux that causes the induced current. Lenz's law can also be expressed as: the effect of the induced current always opposes the cause of the induced current. Lenz's law formula: E=vBL (v is the speed at which the rod moves in the magnetic field). Lenz's law is a law of electromagnetism, which can be used to judge the direction of electromotive force generated by electromagnetic induction. [0003] Physics is an experimental science, excellent experimental design is an important way to improve teaching effect and cultivate scientific spirit. And the chapter on electromagnetic induction is the most abstract chap...
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CPCG09B23/181
Inventor 陈岭
Owner 上海市行知实验中学