I am doing a project and I need to meassure the air velocity or airflow of air comming out of an air conditioner vent. I am using the arduino but I have been having problems finding a sensor that can measure the air velocity and be compatible with arduino.
Does anyone recommend any sensor in particular that I could give a try?
Or have any suggestions on how to accomplish this in a different method?
You might consider using a MAF, or Mass AirFlow sensor. They are commonly used in automobile engines. You can probably find one that outputs an analog voltage between 12V and 0V, which you can analogRead() on the Arduino with a voltage divider.
A MAF is a small solid state device, so more reliable (and probably more accurate) than an anemometer (spinning type sensor). A MAF will use a fair bit of power though, so you may not want to use one for long periods of time in a battery powered project.
I like tylernts idea.
But Will ask a couple questions to get a better understanding of what you are doing.
Is this a school project, commercial project, hobby project, or what. A few more details if it is not secret please.
Is it to be stationary, or moved from vent to vent?