單槽型超聲波清洗機原理是利用超聲波的高頻率，通過換能器轉化為高頻動能，然后作用于清洗槽中的液體介質，使液體產生空化作用，不斷的形成無數個細微氣泡，并迅速爆裂，產生沖擊力沖擊物件表面，使表面污垢脫離，從而達到清洗的效果。那么具體是怎么工作的呢？

The ultrasonic cleaning machine is used to separate the liquid from the surface of the object, and then the ultrasonic wave is used to clean the surface of the object. So how does it work?

在介紹這個工作原理之前，我們先來了解一下，什么是超聲波？超聲波是科學家們將每秒鐘振動的次數稱為聲音的頻率，它的單位是赫茲(Hz)。我們人類耳朵能聽到的聲波頻率為20Hz～20000Hz(20KHz)。當聲波的振動頻率小于20Hz或大于20KHz時，我們便聽不見了。因此，我們把頻率高于20000赫茲的聲波稱為“超聲波”。

Before we introduce how this works, let's take a look at what ultrasound is? Ultrasound is the frequency of sound that scientists call the number of vibrations per second. Its unit is Hertz (Hz). The frequency of sound waves that we can hear in human ears ranges from 20Hz to 20000hz (20kHz). When the vibration frequency of sound wave is less than 20Hz or more than 20kHz, we can't hear it. Therefore, we call the frequency of ultrasonic wave higher than 20000 Hz.

這里說明下，許多人在使用超聲波清洗機時，聽到嗡嗡聲，就以為是超聲波發出的聲音，其實那只是液體在空化作用下產生的聲音。

In this note, many people in the use of ultrasonic cleaning machine, hear the hum, think it is the sound of ultrasonic, in fact, it is only the sound produced by the cavitation of liquid.

單槽型超聲波清洗機上的超聲波頻率一般是28KHz以上。高可達128KHz以上，常用的是40KHz，這個頻率比較通用，適合大多數工件的清洗。頻率越低，清洗的細膩度就越低，但力度會強些。

The ultrasonic frequency of single groove ultrasonic cleaning machine is generally above 28kHz. It can be up to 128khz and 40KHz is commonly used, which is suitable for cleaning most workpieces. The lower the frequency, the lower the fineness of cleaning, but the strength will be stronger.

反之，則清洗的越精細，但力度會減弱。然后把這種頻率通過換能器又稱超聲波驅動電源、電子箱、超聲波控制器，是大功率超聲系統的重要組成部分。在高頻率的超聲波推動下，換能器以每秒數十萬次的頻率震動，這種震動傳遞到緊扣在上面的清洗槽上，透過清洗槽將動能傳遞到槽內的液體中。在這種高頻率的震動下，液體就會產生空化作用。

On the contrary, the more fine the cleaning is, but the strength will be weakened. Then the frequency is transmitted through transducer, which is also called ultrasonic driving power supply, electronic box and ultrasonic controller, which is an important part of high-power ultrasonic system. Driven by high-frequency ultrasound, the transducer vibrates at hundreds of thousands of times per second. This vibration is transmitted to the cleaning tank which is tightly attached to it. Through the cleaning tank, kinetic energy is transferred to the liquid in the tank. Under this high frequency vibration, the liquid will produce cavitation.