How Can a Sensor Accurately Control Inflation to 2 PSI?

[Borja1055]

Hello all,

I am trying to design a system with a sensor that can detect when an inflatable is inflated to 2 PSI. I am trying to inflate something small, around 6 liters. I currently have a system that uses a solenoid, the compressed air, and a mechanical timed relay that tells the system when to stop inflating. The issue is that i want to make it using a sensor or gauge to tell the system to stop inflating at exactly 2 PSI.

Please let me know if you can help. All questions, comments, or suggestions are welcome.

Thanks

 

[Baluncore]

Welcome to PF.

A simple mechanical pressure regulator.
http://en.wikipedia.org/wiki/Pressure_regulator