Body composition analyzer is widely used, and the physical examination center can detect the basic state of the body through it, and analyze and evaluate the nutritional absorption state, metabolic level, body shape and muscle fat content of the tester. The sanatorium carries out health screening for convalescents through it; Gyms use it to detect the muscle and fat content of trainers and provide data assistance for trainers' training plans. However, many people also have some questions about the detection data of human body composition analyzer, and want to know whether the data detected by it is accurate or not and how it works. This paper will start with the theory, and explain the theoretical support, data detection and driving school error mode of this product. Answer your question.

Why do most people have questions about the test data of body composition analyzer? Most people who ask this question are people who have just exercised or are managing their weight, because they are very concerned about the body's muscle fat and other components, and the change of data closely affects everyone's heart. First, we need to know how it detects the human body:

The body composition analyzer adopts bioelectrical impedance analysis technology. In the measurement of human impedance, the four-electrode method is often used to reduce the influence of contact impedance, but because only two electrodes are used as the test ends at the same time, it is impossible to measure the human impedance at the hands and feet, which makes the overall test result too large. In addition, since each electrode uses a current electrode and a voltage electrode, voltage and current will inevitably interfere with each other during measurement. Both of the above factors will increase the system error.

The data detected by human body composition analyzer is accurate in principle, but after it is developed, there will be some errors in the implementation of instruments and equipment. After different time periods and different behaviors, the test data results will fluctuate.

At present, the more accurate human body composition analyzer is a multi-frequency detection device. Eight contact electrodes, all made of stainless steel. In the left and right measuring circuits, two independent electrodes are used as current electrodes. The voltage and current electrodes are used independently and cannot be reused. This can ensure that the voltage and current do not interfere with each other in the measurement process; In a measuring loop, there are four test electrodes working at the same time, which can not only measure the accurate human body impedance, but also measure the human body impedance and the contact impedance of hands and feet, greatly improving the repeatability and accuracy of the measurement results.