You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
Pfeiffer <strong>Vacuum</strong><br />
Page 156<br />
<strong>Vacuum</strong> <strong>Technology</strong><br />
<strong>Vacuum</strong> <strong>Technology</strong><br />
Page<br />
Formula directory<br />
.........................................................................<br />
Formula 1-1 Barometer formula 8<br />
....................................................................<br />
Formula 1-2 Barometer formula number 8<br />
....................................................................<br />
Formula 1-3 Definition of pressure 9<br />
....................................................................<br />
Formula 1-4 General gas equation 12<br />
....................................................................<br />
Formula 1-5 Gas pressure 12<br />
....................................................................<br />
Formula 1-6 Probable velocity 12<br />
....................................................................<br />
Formula 1-7 Mean velocity 12<br />
....................................................................<br />
Formula 1-8 Mean free path 13<br />
....................................................................<br />
Formula 1-9 Knudsen number 15<br />
....................................................................<br />
Formula 1-10 Reynolds number 15<br />
....................................................................<br />
Formula 1-11 pV flow 16<br />
....................................................................<br />
Formula 1-12 Definition of volume flow rate, or pumping speed 16<br />
....................................................................<br />
Formula 1-13 <strong>Vacuum</strong> pump throughput 16<br />
....................................................................<br />
Formula 1-14 Definition of conductivity 18<br />
....................................................................<br />
Formula 1-15 Parallel connection conductivities 18<br />
....................................................................<br />
Formula 1-16 Series connection conductivities 18<br />
....................................................................<br />
Formula 1-17 Blocking 19<br />
....................................................................<br />
Formula 1-18 Gas dynamic flow 19<br />
....................................................................<br />
Formula 1-19 Orifice conductivity 19<br />
....................................................................<br />
Formula 1-20 Orifice flow 19<br />
....................................................................<br />
Formula 1-21 Laminar pipe flow 20<br />
....................................................................<br />
Formula 1-22 Molecular pipe flow 20<br />
....................................................................<br />
Formula 1-23 Molecular pipe conductivity 21<br />
....................................................................<br />
Formula 1-24 Desorption 22<br />
....................................................................<br />
Formula 1-25 Desorption from plastic material 24<br />
....................................................................<br />
Formula 1-26 Permeation 24<br />
....................................................................<br />
Formula 1-27 Leakage rate 24<br />
....................................................................<br />
Formula 1-28 Ultimate pressure (t) 24<br />
....................................................................<br />
Formula 2-1 Compression ratio 27<br />
....................................................................<br />
Formula 2-2 Pump combination gas flow 28<br />
....................................................................<br />
Formula 2-3 Backflow conductivity 28<br />
....................................................................<br />
Formula 2-4 Real compression ratio 28<br />
....................................................................<br />
Formula 2-5 Recursion pumping speed 28<br />
....................................................................<br />
www.pfeiffer-vacuum.net
Change language