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Name two types of air flow sensor technology used for measuring engine consumption?

Two common types of airflow sensor technology used to measure engine air intake (which is crucial for calculating fuel consumption) are:

1. Hot-wire anemometer (Hot-wire mass airflow sensor): This sensor uses a heated wire and measures the cooling effect of the airflow to determine the mass airflow rate. The faster the air flows, the more the wire cools, allowing for a precise measurement.

2. Variable-reluctance sensor (VAF sensor, or sometimes called a vane-type airflow sensor): This type uses a spinning vane that is deflected by the incoming airflow. The angle of deflection is measured using a magnetic sensor, and this is used to calculate the volumetric airflow rate.

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