What Are the Types of Automobile Air Flow Sensors?
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Automobile air flow sensors can be categorized into the following types: flap-type air flow sensors, Karman vortex air flow sensors, and temperature-pressure compensated air flow sensors. The automobile air flow sensor, also known as an air flow meter, is one of the crucial sensors in an electronic fuel injection engine. It converts the inhaled air flow into electrical signals and sends them to the Engine Control Unit (ECU), serving as one of the fundamental signals for fuel injection. It measures the air flow entering the engine. Taking the flap-type air flow sensor as an example, in gasoline engines, it is installed between the air filter and the throttle. Its function is to detect the engine's air intake volume, convert the detection results into electrical signals, and input them into the microcomputer. This sensor consists of two parts: the air flow meter and the potentiometer.