The working principle of the portable alcohol tester guides the working principle of the alcohol tester. When the gas sensor does not detect alcohol, the level of the fifth pin applied to A is low. When the gas sensor detects alcohol, its The internal resistance becomes lower, so that the 5 pin level of A becomes higher. A is a display pusher, which has 10 output terminals, each of which can drive a light-emitting diode. The display pusher A determines the number of LEDs in sequence according to the level of the fifth pin. The higher the alcohol content. The greater the number of stages that illuminate the diode. The five LEDs above are red, indicating a safe level. The following five LEDs are green, indicating a safe level, and the alcohol content does not exceed 0.05%. At present, the alcohol tester is mainly used in the transportation industry, underground mining, etc. The most commonly seen is the alcohol tester in the hands of the traffic police. The research and development of the alcohol tester has brought great benefits to the national security measures: since 2000, with the rapid development of China's economy and the rapid improvement of people's living standards, China has gradually entered the "automobile society", after drinking There are more and more accidents caused by driving behavior, and the impact on society is getting bigger and bigger. Alcohol is becoming an increasingly fierce "road killer." According to relevant statistics, the number of people killed in car accidents in the world exceeds 600,000 per year, leaving more than 4 million permanent disabilities, and the number of people injured is generally countless. In many countries, car accidents have become the first cause of accidental death. The economic losses caused by traffic accidents are also quite alarming. According to the accident survey, about 50%-60% of car accidents are related to drinking. In August 2009, the Ministry of Public Security of the People's Republic of China strengthened the investigation and control of drinking and driving in various parts of the country to reduce the number of vicious traffic accidents caused by drinking and driving. To investigate, it involves the detection of alcohol content in the human body and the use of equipment for testing. Alcohol Tester Usage: The simplest and most feasible method is to detect the alcohol content in the driver's breath. A large number of statistical studies have shown that if the subject is deeply inhaled and exhales at moderate intensity for more than three seconds, the exhaled breath is the gas coming out of the lungs, the alcohol content in the breath and the blood. Alcohol content. For example, the DT-800A/800B sold by Beijing Jintai Electronics is a simple, fast-reacting alcohol tester. The use of advanced fuel cell sensors ensures accurate measurement and effective measurement of alcohol content in the body.
Fuel cell type alcohol sensor, high precision; short warm-up time, fast response and recovery speed; excellent human-computer interaction interface; real-time time display function; two levels of sound and light alarm information for drinking and drunkenness; Test and blow interruption reminder function; five test units are available (mg/L; mg/100mL; g/L; %BAC; ‰BAC); disposable anti-reflux nozzle design, hygienic safety; large capacity rechargeable lithium Battery; drunk driving standards in multiple countries; red and blue backlight alarm (DT-800A); red LED alarm (DT-800B); data storage / history query (DT-800B); Bluetooth transmission / USB transmission / (DT -800B) Fuel cell type alcohol sensor with high precision. The warm-up time is short, and the response and recovery speed are fast.
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