全自動超聲波清洗機是利用超聲（shēng）波的高（gāo）頻率，通過換能器轉化為高頻動能，然後（hòu）作用於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，並迅速（sù）爆裂，產生衝擊力衝擊物件表麵，使表麵汙垢脫離，從而達到清洗的效果。那麽具體是怎麽工（gōng）作（zuò）的呢？

Automatic ultrasonic cleaning machine is to use the high frequency of ultrasonic wave, which is converted into high-frequency kinetic energy by transducer, and then acts on the liquid medium in the cleaning tank, which makes the liquid produce cavitation effect, continuously forms numerous fine bubbles, and rapidly bursts, producing impact force to impact the surface of the object, so as to separate the surface dirt, so as to achieve the cleaning effect. So how does it work?

在介紹這（zhè）個工作原理（lǐ）之前，91污先來了解一下，什麽是超聲波？

Before we introduce how this works, let's take a look at what ultrasound is?

超聲波是（shì）科學家們將每秒鍾振動的次數稱為聲音的頻率，它的單位是赫茲(Hz)。91污人類耳朵能（néng）聽到（dào）的聲波頻（pín）率為20Hz～20000Hz(20KHz)。當聲波的振動頻率小於20Hz或大於（yú）20KHz時，91污便（biàn）聽不（bú）見了。

They call the frequency of an ultrasonic wave in Hertz. 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.

因此，91污把頻（pín）率高於20000赫茲的聲波稱為“超聲波”。這（zhè）裏說明下，許（xǔ）多人在使用全（quán）自動超聲波清（qīng）洗機時，聽到嗡（wēng）嗡聲，就以為是超聲波發出的聲音，其（qí）實那隻是液體在空化作用下產（chǎn）生的聲音。

Therefore, we call the sound wave with frequency higher than 20000 Hz as "ultrasonic wave". In this note, many people in the use of automatic 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.

全自動超聲波清（qīng）洗機上的（de）超聲波（bō）頻（pín）率一般是28KHz以上。高可達128KHz以（yǐ）上，常用的是40KHz，這個頻率比較通用，適合大多數工（gōng）件的清洗。頻率（lǜ）越（yuè）低，清洗的細膩（nì）度就越低，但力度會強些（xiē）。

The ultrasonic frequency on the automatic 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（fǎn）之，則清洗（xǐ）的越精細，但力度會減（jiǎn）弱。然（rán）後把這種頻（pín）率通過換能器又稱超（chāo）聲（shēng）波（bō）驅動電源、電子箱、超聲波控製器，是大功率超聲係（xì）統的重要組成部分。

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.

在高頻率的超聲波推（tuī）動下，換能（néng）器以（yǐ）每秒數十萬次的頻率震動，這種（zhǒng）震動傳遞到緊扣在上麵的清洗槽上，透過清洗槽將動能傳遞到槽內的液體中。在（zài）這種高頻率的震動下（xià），液體就會產生空化作用（yòng）。

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.