animal respiration, combustion, and all oxidative processes (includingorganic compoundof corruption) all consume oxygen. As a part of the air, oxygen is also a substance needed by the human body. Human cells need to function, and organs need the participation of oxygen to maintain health. Oxygen in the air is inhaled through the lungs and respiratory system. Oxygen is obtained and cells are metabolized normally. It can be transformed into energy to provide the body to maintain normal life activities.

Oxygen itself is not toxic, no harm to the human body, but inhaling too much pure oxygen can lead to poisoning, which is the so-called oxygen poisoning. At this time, it is harmful to the human body. Excessive oxygen inhalation will also promote life and aging. But lack of oxygen is also harmful to the human body.

For the human body,20.9% VOLThe oxygen content is the normal concentration;19.5% VOLIt is the minimum allowable concentration of oxygen for normal human activities.15% ~ 19% VOLEnvironmental activity in oxygen concentration can reduce work efficiency and can lead to head, lung and circulatory problems;10% ~ 12% VOLOxygen concentration environmental activities, people will be shortness of breath, loss of judgment, lips purple; when the oxygen concentration is reduced8～10%, can lead to mental loss, fainting, unconsciousness, pale face, purple lips, nausea and vomiting;6~8%，8minutes can be fatal; in4~6%，40Convulsions within seconds, breathing stops, death. It can be seen that the lower the normal concentration, the greater the harm to human body.

The mine is the main passage to the underground, through the mine can enter the various roadways, and then reach the need to mine the ore layer. Compared with the open air environment, the air circulation in the mine is not good, and hypoxia may occur. Therefore, when underground in the mine, the staff should always be alert to the impact of oxygen concentration, because once underground, oxygen supply is insufficient, it is easy to have life accidents, so when underground, safety detection devices need to be equipped to alert the concentration of underground oxygen content, so as to timely remind the underground staff.

Generally, fixed oxygen detectors or portable oxygen detectors are equipped under the mine to determine whether the oxygen content under the mine is suitable for staff operations. After all, it is related to personal safety. I definitely hope that this detection device has good quality and good performance. The core is the oxygen sensor. Without a good oxygen sensor, a good oxygen detection device cannot be made.

recommend an oxygen sensor for everyoneTGS4260, This is a constant potential electrolytic oxygen sensor developed by Figaro of Japan. It has linear output, fast response, high repeatability and selectivity,5More than years of long life, no leakage, detection concentration and wide range of temperature, with the United States and Europe to meet the relevant technical specifications of the performance and other advantages, is very suitable for such as portable oxygen detector and multi-functional gas detector and other applications.

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