Hello a b,
You’d need a blood pressure cuff. The pressure sensor would measure the pressure change in the cuff:
http://flightphysical.com/images/bodyparts/blood-pressure-cuff.jpg
In the above image you can see a blood pressure cuff with a mechanical pressure gauge, instead of that you would connect P1 of the MPX5050.
Please take a look at “Ankle-Brachial Index” image in the following page for detailed information on using a blood pressure cuff:
http://www.ehow.com/how_4425292_use-blood-pressure-cuff.html
If you’re only simulating the circuit, you’d need to generate a signal like the one shown in the following page:
http://www.biopac.ca/Continuous%20Non%20Invasive%20Blood%20Pressure.htm
I’d recommend you to run some test in Matlab or Octave, you can generate such signal by adding sinusoidal signals of different frequencies.
You could also download an artificial biomedical signal generator from the following page from OhioLINK ETD Center:
http://etd.ohiolink.edu/view.cgi/Bhojwani%20Soniya%20Naresh.pdf?akron1193079604
Hope it helps!
Josh
