My project requires a sensor to measure air flow. Unfortunately my searches have only found water flow sensors. I am looking for the cheapest solution. Maybe using a magnet and the hall effect?
Measuring air flow with Arduino ? Discussion Forums - National.
However, You could build a DIY air velocity sensor using two pressure taps and a differential pressure transducer. See the following link for theory. Anemometer sensor or Air flow sensor from moderndevice is a low cost Arduino friendly air flow sensor. This sensor named as wind sensor Rev.
Project was done in Faculty of Engineering Alexandria university, Egypt using cooling fan on an arduino and. The mass air flow ( MAF) sensor in an automobile converts the amount of air drawn. I want to make an ultrasonic air flow meter.
Which Arduino board is suitable for it?
I would use two ultrasonic sensor to measure the difference of transmit time to calculate the air flow velocity. Paddle wheel and turbine flow meters introduce not only resistance but maintenance issue due to accumulated dust and debris.