1.看超声频率

1. Check the ultrasound frequency

市面上的超声波清洗机，大多数频率在40~50kHz左右，这个频率阶段是最中庸的频段，契合绝大多数场景的运用。可是正式因为这个频段运用最多，导致振子（即换能器）的质量纷歧。而具有高频（100kHz左右）或许低频（25kHz）频段的超声波清洗机，其振子质量相对较好，尤其某些双频的机器，其振子必定优于单频的机器。所以在选购时，条件答应的话，能够优先挑选双频的机器，然后根据被清洗物挑选高频仍是低频。

Most ultrasonic cleaning machines on the market operate at frequencies around 40-50 kHz, which is the most moderate frequency range and suitable for the vast majority of applications. However, due to the frequent use of this frequency band, the quality of the oscillator (i.e. transducer) varies. Ultrasonic cleaning machines with high-frequency (around 100kHz) or low-frequency (25kHz) frequency bands have relatively good oscillator quality, especially for some dual frequency machines, whose oscillators are definitely better than single frequency machines. So when making a purchase, if conditions permit, priority can be given to choosing a dual frequency machine, and then selecting high frequency or low frequency based on the item being cleaned.

2.看功率

2. Check the power

功率越高，清洗效果越好，这是毋庸置疑的。可是过高的功率会对被清洗物有所腐蚀，所以功率太大了也不好。那么应该怎样挑选呢？其实部分厂家也考虑到了这一点，所有，有的清洗机设备是能够自行调整超声功率的，1%~99%可调。带有功率可调功用的设备，条件答应的话尽量往大功率的买。

The higher the power, the better the cleaning effect, there is no doubt about it. However, excessive power can corrode the object being cleaned, so having too much power is also not good. So how should we choose? In fact, some manufacturers have also taken this into consideration. Some cleaning equipment can adjust the ultrasonic power by themselves, with a range of 1% to 99% adjustable. If conditions permit, try to buy high-power equipment with adjustable power function.

3.听声响

3. Listen to the sound

听声响，是指听设备作业时的声响。理论上来说，超声波是人耳听不到的声响，可是在实践中，超声波清洗机是会发出必定的噪音的，这是由于各种原因造成的。当两款设备，原料基本相同，功率和频率也相一起，哪一个的噪音小，阐明质量比较好。原因是：

Listening to sound refers to listening to the sound of equipment during operation. In theory, ultrasound is a sound that the human ear cannot hear, but in practice, ultrasonic cleaning machines will emit certain noise due to various reasons. When two devices have similar raw materials, power, and frequency, which one has lower noise indicates better quality. as a result of:

振子作业时不是100%处于超声频段的，好的振子处在超声频段的时刻较多，噪音就小。

When the oscillator is working, it is not 100% in the ultrasonic frequency band. Good oscillators spend more time in the ultrasonic frequency band, resulting in less noise.

噪音小，阐明资料之间的密封性好，也就是制作工艺要求比较高，这样的设备愈加耐用。

The equipment has low noise and good sealing between the data, which means that the production process requirements are relatively high, making it more durable.