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Sound wave propagation demonstrator

A demonstrator, sound wave technology, applied in the field of teaching demonstration, can solve problems such as difficulty for students to understand

Inactive Publication Date: 2019-02-15
周凌霄
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a sound wave propagation demonstrator to solve the above-mentioned background technology that sound waves are an invisible, intangible but objectively existing thing, so that when teachers talk about sound propagation, they can only be compared with water waves, and students hard to understand question

Method used

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Embodiment Construction

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0020] See Figure 1-3 , The present invention provides a technical solution: a sound wave propagation demonstrator, including a main shell 1 and a ring buckle 6, a tympanic membrane 2 is installed on both sides of the main shell 1, and the bottom end of the main shell 1 is provided with a bracket 3, the main shell 1 A belt 4 is installed on the front of the belt 4, and both ends of the belt 4 are provided with threaded rods 5, the middl...

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Abstract

The invention discloses a sound wave propagation demonstrator, which includes a main shell and a loop buckle. Tympanic membranes are installed on both sides of the main shell respectively. A belt is installed on the front of the main shell. Threaded rods are arranged at both ends of the belt. A drum mallet is arranged in the middle of the loop buckle, and the loop buckle is located on the left side of the belt. A storage mechanism is installed to the side of the main shell. A rainbow ring is arranged on the right side of the belt. A fixing mechanism is installed at the end of the rainbow ring.The sound wave propagation demonstrator is equipped with the storage mechanism and the fixing mechanism. Rice grains and a candle needed for experimental demonstration can be placed in the storage mechanism. The rice grains are placed on the tympanic membranes, and the tympanic membranes can be struck to demonstrate that sound is generated by the vibration of objects. After the candle is placed right in front of the tympanic membranes and lighted with a lighter, we can see that the candle flame flutters regularly according to the sound of the drum. The experiment indicates that sound can transmit energy, and students can understand the sound wave more easily. The fixing mechanism is installed on a wall, so that students in the distance can clearly see the demonstration process of the demonstrator.

Description

Technical field [0001] The invention relates to the technical field of teaching demonstration, and is specifically a sound wave propagation demonstrator. Background technique [0002] The propagation of the vibration generated by the sounding body in the air or other materials is called sound waves. The sound waves propagate in all directions through various media. The sound waves are usually longitudinal waves and transverse waves. The particles where the sound waves travel are vibrating near the equilibrium position along the propagation direction. The propagation of sound waves is essentially the transmission of energy in the medium. Sound waves are the propagation form of sound. The object that emits sound is called the sound source. Sound waves are mechanical waves generated by the vibration of the sound source. The space where the sound waves propagate is called the sound field. [0003] Sound waves are invisible, intangible, but objectively existing things. When teachers tal...

Claims

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Application Information

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IPC IPC(8): G09B23/14
CPCG09B23/14
Inventor 周凌霄
Owner 周凌霄
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