Recent content by Brendan1

Hello, sorry for losing touch but I would just like to say thank you all very much for your imput I really appreciate it I have now submitted my project and the final results did make sense in the end. regards Brendan

Thank you for all your help, I will get stuck into these questions, I might come back to check if am on the write lines if that's ok, but now the results are in a more sensible form i hope it becomes clear to me.

Good news! In the code i was using plot pressure for some reason the pressure from the transducers were being multiplied by 10 i have no idea why this was here it was commented as a correction term. anyway now the results make much more sense and the pressure in the tube never higher than the...

This is what is really confusing me I don't see how the pressure can be higher in the tube than in the vessel but have have changed around the transducers used. and get the same results so i don't think it is a amplifier error. The 3 transducers attached to the vessel green, blue and red line...

Thank you, for that I will see if i can apply these methods. my pipe is 127 cm long with a transducer located at 28cm along and another at the end of the pipe.

Yes that was what i meant they won't detect steady pressure, yes they all have the safe cut off frequency. I have calibrated them all for the same pressure range and translated that voltage to pressure for each individual transducer used. Yes this is the idea behind the project of pressure wave...

Sorry you are right that is confusing the black line is transducer at at the beginning of the pipe just after the vessel the pink line is a transducer on the end of pipe near the exit of open to the air the sensors are perpendicular to the flow of the air, yes i have calibrated them all for...

The thing I am trying to wrap my head around is, when the pipe is made longer the. the pressure by the vessel exit increases, is this due to the added weight of the air in a longer pipe compared to a shorter one?

Here is my lab set up. the box with the slighter shading is the pressure gauge. and my pipe / tubing is 8mm in diameter

Yes I have, I'm pretty familiar with all the main concepts, just seem to have confused myself in the context of this experiment.

I am currently doing a research project in the attenuation of pressure waves. With an focus on dealing with sonic booms the are generated from high speed train tunnels. my experiments involved pressurizing a cylinder then using a rapid release valve allowing the air to escape along a pipe. I...