The hazards of ultrasonic fat blasting instrument

There are many ways to lose weight. Most people choose diet plus exercise, but this method of weight loss requires perseverance and a reasonable plan. Many people often cannot persist and fail to lose weight. As people's awareness of weight loss increases, more and more businesses have seen this market, and ultrasonic fat-blasting devices have gradually entered people's lives. Some people say that the weight loss effect is quite good. However, everyone still needs to understand the dangers of ultrasonic fat blasting devices.

Slot 1

According to the principle of this model, it seems to utilize the cavitation effect of ultrasound, which is similar to the working principle of an ultrasonic washing machine. Damn~ does this instrument want to wash human cells? (Big mistake) Countless vacuum molecules violently impact the fat cells around the cells = =, but cavitation occurs inside the human body, producing tiny bubbles. Isn't this fatal?

Cavitation: When ultrasound acts on liquid, a large number of small bubbles can be generated. The cavities of the small bubbles contain liquid vapor or another gas dissolved in the liquid, or even a vacuum.

Slot 2:

Conventional industrial ultrasonic flaw detectors use the pulse reflection method. This method is continuous and has been basically abandoned by industrial ultrasonic testing due to its low accuracy. But other people use it to lose weight, so I won’t force it.

The energy is only 1~5W. If the power of the whole instrument is considered, it seems too low. Can such low energy play a cavitation role? Fortunately, this is not possible. Cavitation is not a vegetarian effect. When the bubbles produced by strong cavitation burst, the surrounding liquid suddenly rushes into the bubbles and generates high temperature, high pressure, and shock waves.

For example, the sound intensity of a cannon is 10-4 watts per square centimeter. The instrument above does not know how to convert the sound intensity. The maximum energy is 5W. Does it refer to the probe or the whole machine? If the maximum energy of the probe is 5 watts, once converted and calculated based on the effective contact area of ​​12 square centimeters, the sound intensity is: 0.42 watts per square centimeter. Isn't this 4200 times the sound strength of a cannon? Did I calculate wrong?

Slot three:

Cold gel is an ultrasonic coupling agent, and its purpose is to allow ultrasound waves to enter the human body. If you have done an ultrasound in the hospital, the nurse will help you apply it (yes)~

Judging from the probe of the instrument, this ultrasonic wave should be a longitudinal wave.

Slot point 4:

Without the application of cold gel, ultrasound cannot enter the body.

If it works continuously, the ultrasonic flaw detector can work continuously for 8 hours if it has sufficient power. Why can't it work continuously for more than 1 hour? Is there a problem of overheating due to continuous operation?

The treatment head should not come into contact with metal? The probe of the ultrasonic flaw detector is in contact with the metal workpiece and then detects whether there are discontinuities such as pores inside. And this machine prompts not to touch metal, inexplicably ~