Ultrasonic
Ultrasound is a mechanical wave, it is not an electromagnetic wave, and there is no problem with electromagnetic radiation (electromagnetic radiation is prone to leukemia, especially children are more likely to get sick).
At the same time, the biological effect of ultrasound is determined by the ultrasound dose. Under a certain dose, it will not produce harmful effects, including for embryos and early pregnancy fetuses,
as long as it is less than 100 milliwatts per square centimeter (1000 watts per square centimeter after conversion) , There is no danger.
Facts have proved that ultrasound is absolutely safe under the internationally prescribed safety threshold conditions.
The safety of ultrasound, It has been widely used:
ultrasonic lithotripsy, ultrasonic ablation of tumors, B-ultrasound imaging, ultrasonic brushing, ultrasonic beauty (removing bags under the eyes), ultrasonic cleaning (lobster, tea dirt, decontamination, etc.,
especially some surfaces that cannot or are inconvenient for physical Touched objects), ultrasonic humidifier, ultrasonic mouse repeller, ultrasonic welding (including plastic welding and metal welding), ultrasonic distance measurement,
ultrasonic speed measurement, ultrasonic fingerprint recognition, ultrasonic flaw detection, ultrasonic radar, Ultrasonic sterilization (canned fruits, milk, juice, soy sauce, drinking water and alcohol), etc.
Moreover, human tissue has a relatively large ability to absorb ultrasonic energy.
When the ultrasonic wave propagates in the human tissue, its energy is continuously absorbed by the tissue and turned into heat. As a result, the temperature of the tissue’s own body rises.
Ultrasonic warming effect can increase blood circulation, accelerate metabolism, improve local tissue nutrition, and enhance enzyme activity.
Under normal circumstances, the heat effect of ultrasound is prominent in bone, and connective tissue, and fat and blood are the least.
Ultrasound is closely related to us in our lives. Ultrasonic technology is widely used in all walks of life, and its application is constantly developing.
I believe that more ultrasound technology will serve humans in the future.
The safety of ultrasound end.