基于传感器的变频式吸油烟机

本文涉及一种由气体传感器电路与单片机控制和传统吸油烟机相配合的变频式吸油烟机装置。本装置通过由传感器将油烟量转变为电压(或电流)电信号送单片机处理。处理后由单片机控制电机转速，实现变频调速的目的。可广泛应用于家庭厨室，可解放人力并能最大限度节省能源。

Range Hoods with Frequency Inverter and sensor

This article presents mainly about a kind of machine withsensor that can absorb the smoke while you are cooking. It iscontrolled by a gas sense circuit and a single-chip, cooperating witha traditional range hood that we often use. This device changes gasinto electric signal through the sense circuit . Then the signal is sentto the single-chip. After that, the single-chip can control the rotaryspeed realizing frequency inversion. This device can be widely usedin kitchens. It is very convenient and can save the energy to amaximum degree.