The electrode sheet sends out a weak current and forms a closed loop with the human body. Through the principle that muscle is easy to conduct electricity and fat is not easy to conduct electricity, an electrical impedance value is obtained, and then the body fat rate is calculated by combining the electrical impedance value with the data such as height and weight.

Body fat scale is a weighing instrument that can measure fat, moisture and so on besides weight. There are two kinds of sensors for measuring body fat in the market: ito film and electrode sheet.

The principle of human body fat scale Muscle contains more water such as blood, which can conduct electricity, while fat can't. Because the channel conductor of current in the body is muscle, the weight of muscle can be known from the difficulty of current passing, so as to judge the proportion of muscle in the weight.

Extended data is a technique to design and estimate body composition according to different conductive characteristics of different body tissues. When a current with a frequency greater than 50k is applied to the body tissue, the current can pass through the extracellular fluid. But part of the current will be absorbed by the cell membrane (resistance, R);

Part of the current slows down because the cell membrane is temporarily charged, which is the reaction. Impedance (z) is the sum of resistance and resistance, and usually resistance accounts for more than 90%.

In addition, obese patients often face various troubles such as fear of heat, influence on body shape and fatigue. Therefore, doctors and experts suggest keeping your body shape within a certain range. With the improvement of people's living standards, health problems are paid more and more attention, which also promotes the development of human body composition measurement science.

Baidu encyclopedia-human body fat scale