Electricity science popularizing instrument

Abstract

An electricity science popularizing instrument belongs to the field of teaching instrument demonstration. The electricity science popularizing instrument is composed of a proportional amplifying unit, a static balance unit, a front unit, a display system, a demonstration power source, an operation amplification integrated switch and a voice grade. An element to be tested is connected to a testing hole, after passing through the element to be tested, the voltage of the demonstration power source can be decreased to some extent, and after passing the proportional amplifying unit and the static balance unit, can reliably start the front unit; then the front unit can start the display system and the voice grade; the operation amplification integrated switch mainly controls switching of alternate current and direct current of the demonstration power source so that the element to be tested can achieve different display in alternate current or direct current states; the static balance unit mainly eliminates static voltage of the proportional amplification unit. The electricity science popularizing instrument is an excellent manufactured experimental circuit and has the advantages of being easy to manufacture and playing a positive role in increasing basic quality of students.

Description

technical field [0001] The utility model belongs to the field of teaching instrument demonstration. Background technique [0002] Innovation is the soul of a nation, and young students are the power of innovation. [0003] The strength of a country lies in its talents, and the cultivation of talents lies in education. The focus of education on young people is that the country is strong when young people are strong, and the country progresses when young people progress. To cultivate young people's love for science, improving the quality of teaching is the key, and the accuracy of experimental instruments is an important factor in improving teaching. The experiments are more convincing, so that students can understand things, understand natural phenomena, inspire students' thinking, and play an important role in improving the level of education. Therefore, various experimental instruments in teaching are constantly improving, but there are still many deficiencies: First, the...

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Problems solved by technology

Therefore, the various experimental instruments in teaching are constantly improving, but there are still many shortcomings: First, the types of experimental instruments are insufficient, especially the experimental instruments for low-grade students are not comprehensive

Second, the spirit of entertaining and teaching in teaching instruments is not enough. Third, the cost of most teaching instruments is too high. Therefore, for some remote village schools, many common teaching instruments cannot be popularized.

[0005] However, there are difficulties in designing a circuit with a demonstration instrument and at the same time it can become a self-made test circuit for beginners. First, from the demonstration effect, because there are many concepts in electricity, it is a demonstration of that aspect; The design of the instrument is mainly to demonstrate the physical properties of components that are closely related to frequency, such as capacitors and inductances. Only by demonstrating those aspects can their physical properties be fully displayed. Thirdly, the most important point is, Although some circuits can achieve the purpose of demonstration, they cannot be an excellent self-made experimental circuit, because an excellent self-made experimental circuit also involves the subject of each unit experiment, which is suitable for beginners, and at the same time it also involves the interest of beginners, and Whether it is easy to install successfully and so on, so this kind of excellent line must also be enriched, innovated and developed

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