Automotive Using a MAF sensor for a non-automotive

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Using an automotive MAF sensor for measuring air mass flow in a non-automotive application could be cost-effective, but calibration may pose challenges. The output of the sensor is typically not directly proportional and often relies on a specific mapping that is stored in the vehicle's ECU. This means that adapting the sensor for different applications may require significant adjustments or additional circuitry. Understanding the sensor's characteristics and how to interpret its data is crucial for accurate measurements. Overall, while feasible, using a MAF sensor outside of its intended automotive context requires careful consideration of calibration and data interpretation.
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Hi

I need to know the mass flow rate of air passing through a chamber which houses an NDIR sensor, so I can relate that to the quantity of a particular gas passing through.
I was just wondering whether using an automobile MAF sensor (hot wire) would be wise. If it could be used, it would be very cost effective. Thing is, I am not sure how difficult it would be to calibrate. Is the output directly proportional, or does it follow some kind of map? And if so, is the map stored on the sensor itself or the car's ECU?

If anyone can help that would be great. Electronics aren't my forte

Thanks
 
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Pretty sure it is stored on the ECU.
 

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