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Interactive tuning fork resonance device

An interactive, tuning fork technology, applied in the direction of educational appliances, instruments, teaching models, etc., can solve problems such as weak interactivity, no comparison between resonance and non-resonance states, and no way to highlight the frequency conditions required for resonance, so as to achieve strong interaction performance, increase the tapping frequency, and reduce the effect of working capacity requirements

Pending Publication Date: 2020-08-21
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This makes these devices less interactive, and can only show one resonance state, there is no comparison between resonance and non-resonance states, and there is no way to highlight the frequency conditions required for resonance

Method used

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Embodiment Construction

[0029] The implementation of the present invention will be described in detail below in conjunction with the drawings and examples.

[0030] An interactive tuning fork resonance device of the present invention is based on the amplification method and electronically controlled percussion sounding, and its general idea includes:

[0031] First of all, in order to more clearly show the relationship between resonance and frequency, three sets of tuning forks with different frequencies were used for comparative demonstrations, and the audience can change the spacing of tuning forks of different frequencies and actively participate in the process of generating resonance. With this more interactive installation, viewers can explore and think more actively, realizing that resonance occurs only between objects with the same natural frequency. At the same time, according to the forced damping vibration equation, when the difference between the input angular frequency and the natural ang...

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Abstract

An interactive tuning fork resonance device comprises a tuning fork oscillation starting device, an outer ring part, a middle ring platform and an inner ring platform, and the outer ring part, the middle ring platform and the inner ring platform are coaxial and are each in an annular column shape. The tuning fork oscillation starting device comprises a central motion system, a connecting rod system and a tuning fork system. The central motion system is arranged at the axis. The connecting rod system comprises a plurality of groups of connecting rod devices with small knocking balls at the tailends. The tuning fork system comprises a plurality of middle ring tuning forks which are fixed on the middle ring platform and have different frequencies, ball pendulum mechanisms which are in one-to-one correspondence with the middle ring tuning forks, and a plurality of inner ring tuning forks fixed on the inner ring platform, and the frequencies covered by the inner ring tuning forks are the same as the frequencies covered by the middle ring tuning forks; the number of the inner ring tuning forks is smaller than that of the middle ring tuning forks, the knocking balls correspond to the inner ring tuning forks in a one-to-one mode, and the central motion system drives the knocking balls to knock the inner ring tuning forks through the connecting rod system. According to the invention, auser can actively explore and understand the principle of sound wave transmission and resonance.

Description

technical field [0001] The invention belongs to the field of advanced manufacturing technology, in particular to an interactive tuning fork resonance device. Background technique [0002] Resonance is a very common physical phenomenon in life. The patents on the demonstration device of the resonance phenomenon mainly include demonstration devices as exhibits, such as: "Resonance Demonstration Instrument", (patent number: ZL201721873392.8, publication number: CN208298431U); and demonstration devices as teaching aids, such as: "A Resonance Demonstration Apparatus and Its Demonstration Method" (Patent No.: ZL201610913200.5, Publication No.: CN106340230B). These resonance phenomenon demonstration devices only have a set of resonant media with the same natural frequency, and the vibration is mostly started by manually tapping a tuning fork, or directly started by an instrument, that is, a set of fixed-frequency waves (sound waves, mechanical waves, electromagnetic waves, etc.)....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B23/14
CPCG09B23/14
Inventor 刘莹杜伯源任泳键孙润桐崔新宇潘尚峰杨建新
Owner TSINGHUA UNIV
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