Tire valve is a self-contained valve which opens to admit air to inflate a tire, and is then automatically closed and kept sealed by the pressure in the tire, to prevent the air from escaping. Tire valve stems are made of aluminium, steel or black rubber. It includes tubeless tire valve and tube valves for passenger cars, truck, buses, tractor and ATV etc.
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The combination of nano-material sensors and electrochemical instruments has become a hot topic, mainly because of its enormous advantages over spectral instruments in the construction of the cost and operation of the Internet of Things. At the same time, in recent years, frequent occurrence of heavy metal events, electrochemical sensors are portable, low-cost, simple operation, good selectivity, high sensitivity and multi-element simultaneous detection and other advantages to usher in a new opportunity for development.
It is understood that electrochemical sensors have a very broad market, only the classic pH sensor, the annual global market of nearly 10 billion US dollars, and another electrochemical sensor - blood glucose meter, its market size has reached more than 5 billion US dollars.
Electrochemical sensor "spring"
The development of electrochemical sensors has a long history. Its basic theory and technological development are closely related to electroanalytical chemistry. The earliest electrochemical sensors can be traced back to the 1950s and developed with the continuous update of microelectronics and materials processing technology. . In recent years, electrochemical sensors have seen rapid development in the direction of miniaturization, miniaturization, and intelligence.