pressure censor for venturi

[mithilonline]

can any one suggest me a pressure tranducer/sensor for a digital venturi meter.
pressure range :0-50 psi

i am making a test rig to carry out a certain calcutalions. an need to feed that data to my pc. i need to knw what i can use an what ic should i use. calibration is ok if some one can tell me how to do it.

its a project so the cost is conidered to be on the lower side.
thanks

 

[FvM]

Do you mean differential pressure of 50 psi or media pressure of 50 psi? Usually the differential pressure between the venturi ports is rather low which makes it difficult to find an economic and accurate sensor. Another important point is kind of medium, e.g. dry gas, liquid etc?

Cheap piezo pressure sensors are only suited for dry and inert gases.