Multifunctional demonstrator for electromagnetics experiments

Abstract

The invention discloses a multifunctional demonstrator for electromagnetics experiments. The demonstrator comprises a base, a fixing plate, a fixation frame, a rotation frame and a crank. The fixing plate is arranged above the base and rotatably connected with the base, the fixation frame and the rotation frame are fixedly arranged at the two ends of the fixing plate respectively, and the crank ishorizontally arranged on the rotation frame; a U-shaped rack is connected to the crank, opposite heteropolar strip-shaped magnets are arranged at the upper and lower ends of the U-shaped rack, and afirst through hole is formed in the portion, close to the upper portion of the side surface of the rotation frame, of the fixation frame; a first fixing column is arranged on the inner side surface ofthe fixation frame horizontally opposite to the first through hole, a second through hole is formed in the top of the fixation frame, and a second fixing column is arranged on the inner side surfaceof the bottom of the fixation frame vertically opposite to the second through hole. The multifunctional demonstrator for the electromagnetics experiments is simple in structural arrangement, high in visibility and visual and integrates multiple functions, and understanding of students to the Faraday's law of electromagnetic induction, the Lenz's law, the left hand rule and the right hand rule canbe deepened.

Description

technical field [0001] The invention relates to the technical field of teaching equipment, in particular to a multifunctional demonstrator for electromagnetic experiments. Background technique [0002] At present, when the teacher is teaching electromagnetic induction, the Faraday generator model is involved, but because the laboratory does not have this device, the teacher cannot do this experiment; a single conductor rod cuts the magnetic induction line in the magnetic field or is moved by the Ampere force, through Experiment to learn the left and right hand rule. Because the current is too small, the experiment is often done with a multi-turn wire frame, which is too intuitive; in the teaching demonstration of electromagnetic damping and electromagnetic drive, the magnet is an iron-cobalt-nickel magnet, and the magnetism is not too strong. The visibility is small and the function is relatively simple; the schematic diagram of the motor and generator in the textbook is a s...

AI Technical Summary

Problems solved by technology

[0002] At present, when the teacher is teaching electromagnetic induction, the Faraday generator model is involved, but because the laboratory does not have this device, the teacher cannot do this experiment; a single conductor rod cuts the magnetic induction line in the magnetic field or is moved by the Ampere force, through Experiment to learn the left and right hand rule. Because the current is too small, the experiment is often done with a multi-turn wire frame, which is too intuitive; in the teaching demonstration of electromagnetic damping and electromagnetic drive, the magnet is an iron-cobalt-nickel magnet, and the magnetism is not too strong. The visibility is small and the function is relatively single; the schematic diagram of the motor and generator in the textbook is a single-turn coil, but there is no demonstration instrument for a single-turn coil motor and generator in the laboratory, and some multi-turn coils have too complicated structures and poor intuition

Images