Air Flow Sensor Arduino Ventilator

Figure 1 shows the schematic construction of a ventilator with the typical air flow sensor positions.

Air flow sensor arduino ventilator.

Cars can have either an analog or digital mass air flow sensor. Accurate air flow pressure monitoring. Sensirion ag stafa switzerland has put a dedicated team of developers on to a project to bring an air oxygen flow sensor to market offering easy integration into ventilators. Analog maf sensors produce a variable voltage output whereas digital sensors send a frequency output.

The covid 19 pandemic has created a spike in demand for ventilators and consequently for the sensors that go into them. It s the volume of air delivered to the lungs with each breath by the ventilator typically 500ml at rest. Both outputs are sent to the engine control module to regulate air fuel mixture and the automatic transmission system. A diy ventilator may not be efficient as that of a medical grade ventilator but it can act as a good substitute if it has control over the following key parameters.

I feel that you need to set program the arduino so that it monitors air intake flow pressure. Although you are setting the motor speed based on a certain air flow this does not really mimic the overall function of how humans animals naturally breathe. How to make an accurate air flow rate sensor with arduino for under 20 covid 19 ventilator. For example the monitoring of pressure mass flow and volume flow over time allows us to observe changes in the patient s condition such as reduced lung capacity.