about pressure drop measuring in hydaulics/pneumatic components

[student0001]

i am doing a project on measuring the pressure drop and response time in pneumatics/hydraulics ... i want your help in guiding me about any devices availble fot it or any ideas ..... thank you

[Shreyas]

Are you using Pressure sensor with (4 to 20 mA output)? 

The basic features that you need to specify before buying a DAQ systems are:
- Sample Rate
- Number of Channels
- Distributed I/O or not

If the Sample Rate is not too fast, and you need a distributed I/O, you will probably get away with the Field Point modules. Otherwise, I would advise you to look into the E-series DAQ boards or PXI 4220.

Contact the NI regional sales office to select the appropriate product for your application.

Also refer the following tutorials :

http://zone.ni.com/devzone/cda/tut/p/id/3639