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How to choose weight scale and fat scale? Do you want to be smart?

Time: 2020-06-15 17:20:28

Click: 195

"The chaotic flower gradually wants charming eyes" is the feeling of buying weight scales and fat scales now. Fortunately, I still know people who have the concept of fat scales. I believe that some students have seen the word "fat scale" messed up, ah, fat? How to measure? Cut fat? As a paranoid weight loss and exercise person, it is really good to cut fat!

How to choose weight scale and fat scale? When it comes to weight scales, it has only gradually become popular in recent years. You can make up for where you used to weigh yourself, what kind of equipment you used, and how heavy this equipment was. After 2000, with the electronicization of the scale's sensors, household scales gradually transitioned from the most original mechanical scales to the current popular electronic scales. The principle of the electronic weight scale is actually very simple. Each weight scale has several deformation sensors (you can think of it as a spring). When a person stands on the scale, the deformation sensor will be deformed. It will become an electric model captured by the CPU of the electronic scale, according to a series of conversions, so as to know the weight of the person standing on it. Of course, the quality of this "spring" directly determines the accuracy of the scale. And lifespan.

What is the principle of fat scales?

Fat scales are actually based on weight scales, with the added function of fat measurement. When you stand on a fat scale, it can not only measure your weight, but also measure how much fat the body has. Fat scale measurement utilizes the basic principle that human water and muscle conduct electricity but fat tissue does not conduct electricity. This measurement principle that conducts electricity in the body through a weak current is called a bioelectric measurement method (BIA measurement method). Simply put, the body impedance of a fat man is very large because there is a lot of non-conductive fat; and the body impedance of a thin man is very small because most tissues are electrically conductive. So how does conductivity correlate with fat? This is thanks to Japanese companies in the 1990s. Japanese companies began to use the concept of big data, that is, to use certain population samples, and use professional fat measurement methods (dual energy X-ray absorption method or nuclear magnetic resonance method) and biological Electrical measurement method, the electrical conductivity, height, weight, age, gender and other parameters at different frequencies and the professionally measured fats have a certain correlation fit, as long as this population sample is large enough, the higher the accuracy of the fit . The fat scales of the current BIA bioelectricity measurement method on the market (including the body with a price of 100,000 yuan) are based on this principle.

How to distinguish the advantages and disadvantages of fat scales?

What kind of fat scale is good? Are fat scales better than weight scales?

Fat scales have several key factors that are easily discernible:

1. Fat scale is better. It is safe to say that weight scales are just a subset of fat scales. For two people of the same height and weight, only the fat scale can distinguish between fat and thin.

2. Judge the accuracy by the number of fat scale electrodes. If micro-current is required to enter the body, the fat scale must have electrode and skin contact. The electrode of the scale is generally on the surface of the scale, and the material is divided into metal and ITO conductive film. Just after two feet stand up, the electrode-foot-leg-torso abdomen forms a loop, and the bioelectric measurement can be performed. Whether the material of the electrode is metal or ITO film is not the most critical factor, but the number of electrodes is critical. As you can see, the average fat scale has 2 metal plates, 4 metal plates or 8 metal plates. It can be said that the more metal pieces, the more accurate the measurement. Because 4 metal pieces have stronger anti-interference ability, 8 metal pieces collect the impedance of the arm and the whole body.

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