NOT gate type capacitive reactance tester

Abstract

The invention relates to a NOT gate type capacitive reactance tester, and belongs to the field of demonstration of a teaching apparatus. The NOT gate type capacitive reactance tester is formed by a binary system switch circuit, a NOT gate type pulse power supply, a two-gate triple voltage boosting circuit, an equalization multi-point dividing system, a display excitation unit and a display system, wherein through switching of the binary system switch circuit, a tested object can be displayed in different states in alternating and direct currents, and the binary system switch circuit directly controls the alternating and direct current state of the NOT gate type pulse power supply; and as output of the NOT gate type pulse power supply accepts voltage-tripling boosting of the two-gate triple voltage boosting circuit and the stronger the signal output from the two-gate triple voltage boosting circuit becomes, the more the step voltage units with excitation in the equalization multi-point dividing system are, and the more the excitation display units are. Therefore, the series of characteristics of resistance elements are demonstrated. The NOT gate type capacitive reactance tester utilizes the optic and acoustic effect for the demonstration effect, thus being funny, so that the love of the young for science can be cultivated and the basic quality of students can be improved.

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...

AI Technical Summary

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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