What is the principle of acoustic vibration? The principle of vibration sound

Vibrational sound principle: Sound is a sound wave produced by the vibration of an object. It is a wave phenomenon that is propagated by a medium, such as air or a solid or liquid, and can be perceived by the auditory organs of humans or animals.

The object that initially vibrates is called the sound source. Sound vibrates and travels in the form of waves. Sound is the motion formed by the propagation of sound waves through any medium.

In physics, sound is generated by the vibration of an object, and the object that is emitting sound is called the sound source. The number of times an object vibrates in a second is called frequency, and the unit is hertz, the letter Hz. The human ear can hear the sound of 20 20000 Hz, and the most sensitive is the sound between 200 and 800 Hz.

In nature, there is light energy, water energy, mechanical energy, electrical energy in life, and in fact, sound also has energy. For example, if two objects with the same frequency are struck on one of them, the other object will also vibrate and make sounds, a phenomenon called resonance. Sound propagation is the vibration that drives another object, indicating that sound also has energy.

People use decibels to express the strength of sound, and the symbol is decibels, which just causes hearing. People call sounds with frequencies higher than what can be heard by the human ear ultrasound, and sounds with frequencies lower than what the human ear can hear are called infrasound.

Sound is a pressure wave: when a musical instrument is played, a door is slammed or a table is struck, their vibrations cause the medium-air molecules to vibrate rhythmically, causing the surrounding air to produce dense changes to form sparse longitudinal waves, which produce sound waves, and this phenomenon continues until the vibration disappears. As a kind of wave, frequency and amplitude have become important properties to describe the wave, the magnitude of the frequency corresponds to what we usually call pitch, and the amplitude affects the magnitude of the sound.

Sound can be broken down into superpositions of sine waves of different frequencies and intensities.

Principle of Acoustic Resonance: Defined in physics, any system has its own natural vibrational frequency, which is called the exclusive natural frequency. When a system is subjected to a forced vibration of the same frequency as its intrinsic genus, the system amplitude can reach very large values.

In acoustics, sonic resonance refers to the use of a sound wave with the same natural frequency as the system to excite the system, so as to achieve resonance with the system, and the system structure may be destroyed.

There are many places in nature that have resonance phenomena, such as: the acoustic resonance of musical instruments, the orbital resonance between some Jupiter-like moons of the solar system, the resonance of the basement membrane in the animal ear, the resonance of electrical circuits, etc. Humans are also using or trying to avoid resonance phenomena in their technology.

Resonance occurs when the frequency of the sound wave coincides with the natural frequency of the object. Isn't it true that in life, we often see a person singing so loudly that even the wine glass bursts.

Vibration is a universal phenomenon in the universe, which is generally divided into macroscopic and microscopic vibrations. Some vibrations have a relatively fixed wavelength and frequency, while others do not. When two objects with the same vibration frequency vibrate, one of the objects can make the other object vibrate at the same frequency, this phenomenon is called resonance, and the resonance phenomenon can bring many benefits and harms to human beings.

Different atoms have different vibrational frequencies and emit a spectrum that does not miss at the same frequency, so the optical spectrum analyzer can be used to find out which elements the substance contains.

At room temperature, the magnitude of the particle vibration amplitude determines the form of the substance. Different substances have different melting points, freezing points, and vaporization points, which are also determined by the different vibrational frequencies of the particles. What we usually call air temperature is the amplitude of the vibration of air particles.

Any vibration requires energy, and without it there is no vibration. Absolute zero, which is defined by physics, is the temperature at which even elementary particles cannot vibrate, and is also the lowest temperature in the universe.

The principle of vibration is that of the objectReciprocating motionThere are several causes of vibration:

1.Electromagnetic vibrations.

The vibration disappears if the aluminum-shelled geared motor cuts off the current. This is electromagnetic vibration.

2.Mechanical vibration.

The vibration does not disappear, even if the aluminium motor breaks the current. This is called mechanical vibration.

Everything vibrates or resonates with each other, and the universe was created from vibration (big-bang theory). One of the conundrum in contemporary human science and theory is how the universe came to be. One of the more popular theories is the big ** theory - that is, the cosmic spike is a fairly dense and extremely hot energy mass before time guesses the luck to zero.

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