Ultrasonic waves in life has been relatively common, especially in the medical, surveying aspects of the use of more, mainly used to detect, ultrasound is a frequency higher than 20,000 hertz sound waves, because it is a good direction, reflective ability, in the industrial sector is mainly used in the distance measuring, welding, cleaning equipment and so on. But many people for ultrasound is not fully understand, for such a sound wave whether the human body harm, today take you to understand:
Ultrasonic cleaning equipment
Ultrasonic cleaning machine in operation will be issued by the uncomfortable sound, is due to the cleaning equipment, high-frequency work issued, of course, we can't say that it does not have a little bit of radiation, like we often use cell phones, there will be a little bit of radiation. There will be a little radiation, but the harm to the human body is minimal, ultrasonic cleaning equipment issued by the high-frequency wave is also very little harm to the human body, so do not worry too much.
Ultrasonic cleaning equipment, generally in the cleaning machine to add water as a medium for transmission, the use of ultrasonic high-frequency oscillation of water molecules to run, the energy is also absorbed by the water, basically will not cause harm to people. The reason why the sound, the sound is not ultrasonic, people can not hear the ultrasonic. This also requires the principle of ultrasonic cleaning machine to explain: when ultrasonic action in the liquid, the liquid will produce tens of thousands of bubbles, has been burst, thus generating a great energy shock wave, equivalent to the instantaneous generation of several hundred degrees of high temperature as well as up to thousands of atmospheric pressure, this phenomenon is known as "cavitation effect", ultrasonic cleaning using Liquid bubble explosion generated by the shock wave to achieve the scouring and cleaning of the workpiece gap or appearance. Ultrasonic waves will be propagated in the liquid, so that the liquid and the machine tank in the ultrasonic frequency together with the oscillation, the liquid and cleaning tank vibration have their own intrinsic frequency, so people in the use of ultrasonic machines, you will hear the oscillation produced in the "slurping, slurping" sound. At first, you may not be accustomed to hearing, do not feel very comfortable, but this is a psychological effect, in fact, there is no harm to the human body.
So don't be uneasy about ultrasonic cleaning equipment, on the contrary, the most important thing is the safe operation of the equipment is what we need to pay attention to, as well as their own protection and a series of safety issues.