Common air flow sensor throttle air flow meter

Engine electronic control system is very important for a control content is the best air-fuel control , to achieve this purpose , the engine air intake must be accurate air flow measurements. Common air Crankshaft Positioning Sensor  throttle air flow meter , Karman vortex air flow meter , hot wire air flow meter, hot-film air flow meters . Air flow damper simple structure, high reliability, but intake air resistance is large , the response is slow and bulky ; the hot-wire air flow meter due to no moving parts , is not only reliable, and fast response , the disadvantage is the velocity distribution is have larger error . Although the hot-film air flow meter works and hot wire air flow meter is similar, but not as  Engine Water Temperature Sensor  used platinum wire as the hotline , but the hotline resistors, thick film resistors and other compensation for production process , in the same ceramic matrix chip , the heating body is not directly exposed to the air flow generated by the force , thereby increasing the strength of the heat , the air flow is not only further improve the reliability , but also to reduce errors , and better performance. .