I need some help for some medical research. i want to measure the "negative" pressure generated by small syrignes of about volume 5 -10 ml I have a digitron 2082 differential manometer for this. My problem is that there is some dead space between the syringe and the measuring membrane, and i feel that it may influence the results, becuase the air in the dead space may expand. how can i get rid of this dead space? can i fill it with water, or is there some other liquid that i can use with out damaging the manometer ?
Using a differential manometer to measure pressure generated by small syringes.?
If medical field is so short on money maybe you should.....Hey wait a minute, haven't all the biggest, grandest, most ostentatious, gaudy, overdone, swimming pools that I have ever built been done for Doctors? Maybe you should switch to brain surgeon or something. (Lol, just kidding)
As for your manometer, I can't give any better advice than READ THE OWNER'S MANUAL. Hello, never operate any equipment without fully reading the owner's manual. How do you even know that you are even working the manometer correctly.
And as I is just a poor engineer, I has never seen nothin so fancy as a digital manometer. Why don't you just use a good, old fashioned slack-tube manometer, already has water in it, even measures in good old fashioned inches of water column. But anyway, I hope that this helped you,
Good luck on your research
Reply:The dead space won't affect your measurement. Air will compress and expand but if you're only interested in pressure you should be able to read that value regardless of volumetric differences due to gas expansion/contraction.
Pressure at either end of that dead space will equilibrate and yield the same value.
Reply:Allow for it in your calculations
Ever heard of Experimental error?
Reply:You've posted quite a few fairly trivial questions here about your research. Are you sure you're really up to it?
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