Integrated-type conductivity visual teaching demonstration instrument

Abstract

The invention discloses an integrated-type conductivity visual teaching demonstration instrument, and belongs to the field of teaching instrument demonstration. The demonstration instrument consists of an integrated electronic circuit, a testing rod, a testing clamp, and tester jacks. The integrated electronic circuit consists of a preposed stage, an amplification stage, an interlocking stage, a display pushing stage, a zero clearing stage, a display stage, and a voice stage. One of two tester jacks is connected with the input end of the electronic circuit, and the other jack is connected with a ground line. The testing clamp clamps a tested object. When the tested object is connected to two ends of a test hole, the integrated electronic circuit is started according to the conductive performances of the object, and the conductive performances of the object are presented through sound and light display, thereby enabling students to understand the conductivity condition from a perceptual angle and the concepts and significances of conductors, resistors and insulators and further to understand the significance of the ohm law, and enabling the students to lay a foundation. The instrument is low in cost, and can be popularized in schools.

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.

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