Extended data:
The sound level is related to the tuning fork itself, and the sound level is related to the impact strength. The greater the intensity of knocking the tuning fork, the greater the vibration of the tuning fork and the greater the sound it makes.
Tuning fork is a commonly used experimental equipment in physics. It is a Y-shaped sound generator made of steel or aluminum alloy, which can generate mechanical waves with a single wavelength. Various tuning forks can emit pure tones with different wavelengths because of their different sizes, fork arm lengths and heights. The longer the tuning fork arm, that is, the higher the tuning fork, the longer the wavelength, the lower the tone and the shorter the tuning fork arm, that is, the shorter the tuning fork, the shorter the wavelength and the higher the tone.
In medicine, tuning forks are also used to test patients' hearing. In industry, the tuning fork liquid level gauge is a switch to control the liquid level.
Principle: The mechanical wave emitted by the tuning fork after being struck is very weak, and it can only be heard clearly when it is held by the ear. For this reason, sometimes the tuning fork will be pressed on a solid plane such as a table after being struck, which can make this plane have the function of a vibrating plate and greatly increase the amplitude energy.
Usage: In physics teaching, tuning fork can be used to demonstrate the properties of mechanical waves. Tap the tuning fork and collect spectrograms. It is found that tapping the tuning fork lightly has small amplitude, small spectrogram amplitude and small sound. If you tap the tuning fork again, the amplitude of the tuning fork is large, the amplitude of the spectrogram is large, and the sound made by the tuning fork is also large. Description: The loudness of mechanical wave is related to the amplitude of tuning fork mechanical wave. The greater the amplitude, the greater the loudness; The smaller the amplitude, the smaller the loudness.
Electro-mechanical watch: The electro-mechanical watch was developed by Max eser for Baoluhua Company and named "Accutron". This instrument uses a 360Hz tuning fork and battery, and its accuracy is quite high. 1977, the production of this watch stopped.
There is a tiny tuning fork in the time oscillator, which is the most commonly used in modern time electronic watches. The piezoelectric characteristics of the crystal make the tuning fork vibrate to generate current pulses, so it is also used in computer chips for timing. In today's watches, the corresponding vibration frequency is usually 32768 Hz. (See "Quartz Clock" for details)