摘要： 在物质文明飞速发展的今天，传感器技术作为一门新兴学科已经得到了大规模的开发和应用。现在随着科学技术的进步以及电子计算机、机器人、自动控制技术和单片机嵌入系统的迅速发展，迫切需要形形的传感器。显而易见，传感器在现代科学技术领域中占... 摘要：
在物质文明飞速发展的今天，传感器技术作为一门新兴学科已经得到了大规模的开发和应用。现在随着科学技术的进步以及电子计算机、机器人、自动控制技术和单片机嵌入系统的迅速发展，迫切需要形形的传感器。显而易见，传感器在现代科学技术领域中占有极其重要的地位。了解、掌握和应用传感器已成为电子专业技术人员的必需技能。
本文以酒精测试仪为例，详细阐述了气体传感器的工作原理，并与实际电路相结合，对其具体工作过程进行了分析探讨，对以气敏元件为基础构成的传感器的未来发展趋势与应用也有所探讨。
酒精测试仪主要应用于交通JC测试司机是否有酒后驾驶的情况出现，从而避免交通隐患，保证车辆安全行驶。与之相关的气体传感器设备如：有毒气体报警器、自动去湿装置、自动空气净化换气扇等也逐渐出现在人们的视线中，可见传感器技术在人们日常生活中所起的作用越来越大。通过阅读本文，读者可以了解到气体传感器的工作原理、理论基础和实际应用。
关键词：气体传感器 酒精 半导体气敏元件
Abstract : The rapid development of material civilization today， Sensor technology as a new discipline has been a large-scale development and application. Now that the progress in science and technology and computers， robotics， Control technology embedded microcontroller system and the rapid development of the urgent need for all kinds of sensors. Clearly， sensors in the field of modern science and technology， occupies an extremely important position. Understand， and apply electronic sensors have become professional and technical personnel necessary skills. Based Alcohol Tester example， a detailed explanation of the gas sensor principle， and the actual circuit and the combination of Regarding the specifics of the process were analyzed， gas sensors right to form the basis for the future development of sensors and the application of the trend has been to explore. Alcohol Tester main drivers for traffic police test whether drink-driving case， thus avoiding the transport of hidden dangers， guarantee the safety of vehicles traveling. Associated equipment such as gas sensors : toxic gas alarm， automatic suction device automatic air purification Ventilator also began to emerge in the people's attention. Visibility sensor technology in people's daily life plays an increasingly important role. By reading this paper， readers can see gas sensor principle， the theoretical basis and practical application. Key words : gas sensors alcohol semiconductor gas sensors
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