Pressure sensor for jet impingement

[KathrynM]

Hello,

I need to get hold of a pressure sensor to measure the pressure produced by a submerged oscillating jet impinging against a surface. I'm expecting the jet exit velocity to be approximately 50m/s which should correspond to about 12.5 bar, however peak pressure will (hopefully) be quite a bit higher than this due to higher rms velocity and possible cavitation effects. So, I need a sensor that can withstand being put underwater and blasted by a jet at roughly the pressure described above. I will confess to knowing fairly little (nothing) about pressure sensors so if anyone could point me in the right direction, it would be appreciated.

Thanks in advance for your help.

Kathryn.

 

[LittleInch]

Are you sure you mean pressure and not force? I can't quite work out what you're trying to measure or things like how deep it is?

A jet velocity of 50m/sec is some velocity for water....

If the surface is not very deep, I would suggest you simply drill a hole or fit an open tube pointing in the direction you want, fill it with water and then just fit a pressure transmitter to the end of it.

If you need the transmitter underwater then just search "subsea pressure transmitters", but expect to pay a substantial sum for one of them. For the above water transmitter all you need is an indicating transmitter and feed it with 24v SC and you can read the pressure. If it is very unsteady, you will need to record the pressure and analyse it later.

My motto: Learn something new every day

Also: There's usually a good reason why everyone does it that way