The principle of measuring fat:

The weighing method of intelligent body fat scale is BIA bioelectrical impedance measurement. That is, the user stands barefoot on the body fat scale, and a weak current passes through, and the resistance value is measured according to the law that the body fat is not conductive and the body water is conductive.

According to the user's height, age and gender, it is brought into the big data sample model for calculation.

Therefore, to determine whether the measurement results of body fat are accurate, we mainly look at three points:

1, sample model.

At present, there are mainly three genres of models: models made by white users in Europe and America, models made by Asian yellow people, and models made by specially trained people such as athletes.

Obviously, the sample model made by the yellow race is more in line with the real physical condition of ordinary users in China.

2. Number of samples. The number of samples is directly proportional to the accuracy of the measurement results. The larger the number of samples, the finer the classification and definition of users, so the higher the accuracy of calculation.

Since the establishment of 20 13 company, Pinpin PICOOC and the University of Chicago have jointly used more than 600,000 yellow user samples to polish the algorithm and data, which is closer to the real physical condition of ordinary people.

Step 3 measure posture. At present, there are three kinds of fat measuring instruments on the market: two-handed measurement, two-legged body fat scale measurement and mixed measurement.

Extended data

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

The principle of human body fat scale is that muscle contains more water such as blood and can conduct electricity, while fat is not. 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.

According to the above principle, the electronic fat scale contacts the user's leg by using the electrode pad on the scale surface, and then measures the bioimpedance based on the input user data and the measured bioimpedance.

Using the formulas obtained from a large number of our experiments, we can accurately measure body components, such as body fat percentage, body moisture percentage, body muscle percentage and bone weight.

Usage of human body fat scale

1, choose your personal number.

Turn on the machine. When the position indicated by the arrow flashes, press the up and down keys to select the personal number, and then press the set key to confirm.

2. Enter your gender

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

3. Enter your age

When the position indicated by the arrow flashes, press the up and down keys to select the age, and then press the set key to confirm (press and hold this key for quick selection).

4. Enter your height

When the position indicated by the arrow flashes, press the up and down keys to select the height, and then press the SET key to confirm (press and hold this key for quick selection).

Note: Please do not stand on the scale when entering parameters.

When your personal parameters are set, and then display "0.0" KG (in the state of kg), you can weigh and measure the fat rate.

References:

Baidu encyclopedia human body fat scale