What is the principle of fat scale? What is the principle of a body fat scale

The muscles of the human body contain more water such as blood and can conduct electricity, while fat does not conduct electricity. Since the channel conductor of the current in the body is the muscle, the weight of the muscle can be known from the difficulty of the current passing, and it can be judged that the proportion of body weight is higher in people with less muscle.

The principle of fat scale can be said to be measured by using the bioelectrical impedance method by using the characteristics of adipose tissue that is difficult to conduct electricity and muscle that is easy to conduct electricity. Of course, after the measurement, there will be a formula to calculate different values (in fact, the accuracy of the body fat meter is mainly based on this value). The world's first human fat meter is the Japanese company Tanita, and the measurement results are very accurate.

The principle of the body fat scale is that muscle contains more water such as blood and can conduct electricity, while fat is non-conductive. Because the channel conductor of the current in the body is the muscle, the weight of the muscle can be known from the difficulty of the current passing, and from this, the proportion of the body weight can be judged.

Studies have found that when a certain frequency of electrical signals passes through the body, the fat part has a higher "impedance" value than the muscle and other tissues of the body. When a safe electrical signal of a specific frequency passes through the human body, the electrical signal will change to varying degrees depending on the value of the "impedance" of the human body.

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When the position pointed by the arrow flashes, press the up and down keys to select the individual number, and then press the set button to confirm.

2. Enter your gender.

When the arrow flashes, press the up and down keys to select the gender, and then press the set key to confirm.

3. Enter your age.

When the position of the arrow flashes, press the up and down keys to select the age, and then press the set button to confirm (you can press and hold the key to quickly select).

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When the position pointed by the arrow flashes, press the up and down keys to select the height, and then press the set button to confirm (you can press and hold the button to quickly select).

The principle of body fat scale is that the conductivity of various components in the muscles of the body is different, for example, blood in the muscles can conduct electricity, but fat does not. Since the current in the body is a conductor of muscles, the weight of the human body can be measured according to how easily the current flows through the muscles. From this, it can be concluded that the proportion of fat in people with less muscle is higher in the proportion of body weight.

I don't know the specifics, but it requires high-precision sensors, so the technical requirements are quite high, I think Garmin has done a good job in this regard, its body fat scale can measure weight trends, body moisture content, body fat percentage and other data, and now there is a chance to participate in the event for free.

The measuring principle of the body fat scale is known in the industry as the BIA bioelectrical impedance measurement method. It is a common measurement method for almost all body fat scales, body composition meters and other measurement tools on the market.

The specific principle is that the scale body emits a weak current through the electrode sheet, forming a closed loop with the human body.

Through the principle that muscle conducts electricity easily and fat does not, an electrical impedance value is obtained, and then the electrical impedance value is combined with height, weight and other data to calculate the body fat percentage.

The human body is like a parallel resistor.

The resistance value of each part is different, and the body fat scale is like a multimeter.

Connected to the A and B ends of the circuit, you can read the resistance value directly from the table, and then you can take the resistance value and solve the problem according to the physical formula and other known conditions.

One is the measurement part, the measurement of the body fat scale is to measure the resistance of the human body through the electrode sheet conductive film.

Value; The other is the calculation part, which is estimated by the built-in model algorithm.