空气流量传感器有体积流量型和质量流量型2大类,体积流量型有翼片式和卡门蜗旋式2种,质量流量型有热线式和热膜式2种。热线式和热膜式空气流量传感器性能较好,而且这2种传感器的结构和工作原理基本相同,只是热线式空气流量传感器的发热体(热线)极细,直接承受 There are two types of air flow sensors, volume flow type and mass flow type, two types of volume flow type wing-type and Carmen screw type, and mass flow type of hot wire and hot type. Hot-wire and hot-film air flow sensor performance is better, and the structure and working principle of these two sensors are basically the same, but the hot-wire air flow sensor heater (hotline) very fine, directly