[English] How Mass AIr flow Sensor Works? : Animation 

Hello everyone welcome to the automotives
in this animatied video we will discuss about mass airflow sensor!
IN this animated video we will discuss about
Location
Construction and working of Mass air flow sensor!!
LOCATION::::::
Lets start with the location of sensor!
Normally Mass air flow sensor is Provided in Throttle body or
you can say Between air filter and intake manifold!
so it can precisely measure the quantity of intake air!
CONSTRUCTION::::
Mass air flow sensor consist of a body in which ECM connector is provided!
One Tungstan wire is used as a core sensing element for the air quantity which is
Paired by a tempreture sensor in front.
to protect the entire sensing element one simple dust filter is provided which
cleans the dust particles from incoming air.
WORKING:::
When Sensor is subjected to intake air the tempreture sensor Sens the tempreture of
it and sends signal to the ecm. using this signal ECM Supplies Specific voltage to tungstan wire which heat up the wire to Slight higher tempreture then intake air.
due to lower tempreture of intake air tungstan wire gets Cooling effect and according to its
Physicle property Resistance of wire reduces. this change in resistance will Measured by ECM.
it means Resistance changes with the flow of intake air. the Decrease in flow of air causes
the Higher Resistance in Tungstan wire and vice versa.By measuring this Change In resistance ECM can decide the flow of air inside Intake manifold.
#mafsensor #massairflowsensor #automobilesensors
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