Martin vicar the empiric elimination of the water vapour influence emrp ind12 workshop 2012
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MODEL. OVERVIEW. OBSERVATION. RESULTS. PROS & CONS. STUDY. CONCLUSION. The empiric elimination of the water vapour influence. Martin Vicar ‒ The empiric elimination of the water vapour influenceEMRP IND12 workshop, 2012.

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Martin Vicar ‒ The empiric elimination of the water vapour influenceEMRP IND12 workshop, 2012

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Martin vicar the empiric elimination of the water vapour influence emrp ind12 workshop 2012

MODEL

OVERVIEW

OBSERVATION

RESULTS

PROS & CONS

STUDY

CONCLUSION

The empiric elimination of the water vapour influence

Martin Vicar ‒ The empiric elimination of the water vapour influenceEMRP IND12 workshop, 2012

1Martin Vicar, 2Ladislav Peksa, 2Tomas Gronych, 1Zdenek Krajicek, 1Dominik Prazak, 2Martin Jerab, 1Frantisek Stanek

1 Czech Metrology Institute

2 Charles University in Prague


Martin vicar the empiric elimination of the water vapour influence emrp ind12 workshop 20121

MODEL

OVERVIEW

OBSERVATION

RESULTS

PROS & CONS

STUDY

CONCLUSION

THE TASK:

TO STATE THE UNKNOWN HELIUM FLOW FROM THE LEAK

PROCEDURE USED:

INDIRECT COMPARISON WITH THE STANDARD LEAK USING THE QUADRUPOLE MASS SPECTROMETER AS A COMPARATOR

Martin Vicar ‒ The empiric elimination of the water vapour influenceEMRP IND12 workshop, 2012


Martin vicar the empiric elimination of the water vapour influence emrp ind12 workshop 20122

MODEL

OVERVIEW

OBSERVATION

RESULTS

PROS & CONS

STUDY

CONCLUSION

THE TASK:

TO STATE THE UNKNOWN HELIUM FLOW FROM THE LEAK

PROCEDURE USED:

INDIRECT COMPARISON WITH THE STANDARD LEAK USING THE QUADRUPOLE MASS SPECTROMETER AS A COMPARATOR

Martin Vicar ‒ The empiric elimination of the water vapour influenceEMRP IND12 workshop, 2012

OR

UNKNOWN FLOW 1

KNOWN FLOW 2

QMS

PFEIFFER PRISMA QUADRUPOLE MASS SPECTROMETER

PUMPING


Martin vicar the empiric elimination of the water vapour influence emrp ind12 workshop 20123

MODEL

OVERVIEW

OBSERVATION

RESULTS

PROS & CONS

STUDY

CONCLUSION

ASSUMPTION 1:

P = Q / PUMPING SPEED

ASSUMPTION 2:

I = SENSITIVITY * P

Martin Vicar ‒ The empiric elimination of the water vapour influenceEMRP IND12 workshop, 2012

OR

UNKNOWN FLOW 1

KNOWN FLOW 2

QMS

PFEIFFER PRISMA QUADRUPOLE MASS SPECTROMETER

PUMPING


Martin vicar the empiric elimination of the water vapour influence emrp ind12 workshop 20124

MODEL

OVERVIEW

OBSERVATION

RESULTS

PROS & CONS

STUDY

CONCLUSION

ASSUMPTION 1:

P = Q / PUMPING SPEED

ASSUMPTION 2:

I = SENSITIVITY * P

Martin Vicar ‒ The empiric elimination of the water vapour influenceEMRP IND12 workshop, 2012

OR

UNKNOWN FLOW 1

KNOWN FLOW 2

QMS

PFEIFFER PRISMA QUADRUPOLE MASS SPECTROMETER

PUMPING


Martin vicar the empiric elimination of the water vapour influence emrp ind12 workshop 20125

MODEL

OVERVIEW

OBSERVATION

RESULTS

PROS & CONS

STUDY

CONCLUSION

THE OBSERVED SIGNAL FOR HELIUM – UNEXPECTED UNSTEADY SIGNAL

Martin Vicar ‒ The empiric elimination of the water vapour influenceEMRP IND12 workshop, 2012


Martin vicar the empiric elimination of the water vapour influence emrp ind12 workshop 20126

MODEL

OVERVIEW

OBSERVATION

RESULTS

PROS & CONS

STUDY

CONCLUSION

THE OBSERVED SIGNALS FOR HELIUM AND WATER

Martin Vicar ‒ The empiric elimination of the water vapour influenceEMRP IND12 workshop, 2012


Martin vicar the empiric elimination of the water vapour influence emrp ind12 workshop 20127

MODEL

OVERVIEW

OBSERVATION

RESULTS

PROS & CONS

STUDY

CONCLUSION

THE CORRELATION BETWEEN SIGNALS FOR HELIUM AND WATER

Martin Vicar ‒ The empiric elimination of the water vapour influenceEMRP IND12 workshop, 2012


Martin vicar the empiric elimination of the water vapour influence emrp ind12 workshop 20128

MODEL

OVERVIEW

OBSERVATION

RESULTS

PROS & CONS

STUDY

CONCLUSION

THE CORRELATION BETWEEN SIGNALS FOR HELIUM AND WATER

MODEL:

Martin Vicar ‒ The empiric elimination of the water vapour influenceEMRP IND12 workshop, 2012


Martin vicar the empiric elimination of the water vapour influence emrp ind12 workshop 20129

MODEL

OVERVIEW

OBSERVATION

RESULTS

PROS & CONS

STUDY

CONCLUSION

THE CORRELATION BETWEEN SIGNALS FOR HELIUM AND WATER

MODEL:

Martin Vicar ‒ The empiric elimination of the water vapour influenceEMRP IND12 workshop, 2012


Martin vicar the empiric elimination of the water vapour influence emrp ind12 workshop 201210

MODEL

OVERVIEW

OBSERVATION

RESULTS

PROS & CONS

STUDY

CONCLUSION

THE CORRELATION BETWEEN SIGNALS FOR HELIUM AND WATER

MODEL:

Martin Vicar ‒ The empiric elimination of the water vapour influenceEMRP IND12 workshop, 2012


Martin vicar the empiric elimination of the water vapour influence emrp ind12 workshop 201211

MODEL

OVERVIEW

OBSERVATION

RESULTS

PROS & CONS

STUDY

CONCLUSION

THE CORRELATION BETWEEN SIGNALS FOR HELIUM AND WATER

MODEL:

Martin Vicar ‒ The empiric elimination of the water vapour influenceEMRP IND12 workshop, 2012


Martin vicar the empiric elimination of the water vapour influence emrp ind12 workshop 201212

MODEL

OVERVIEW

OBSERVATION

RESULTS

PROS & CONS

STUDY

CONCLUSION

+ SIMPLE METHOD

+ INTERESTING RESULTS

+ CAN BE USED IF HELIUM SIGNAL DECLINES WHEN WATER SIGNAL RISES

– DOES NOT GIVE USEABLE RESULTS FOR CASES WHEN HELUM SIGNAL RISES TOGETHER WTH THE WATER SIGNAL

– WE HAVE NOT THE EXACT THEORETHICAL EXPLANATION ABOUT THE INTERACTION MECHANISM AND PLACE

Martin Vicar ‒ The empiric elimination of the water vapour influenceEMRP IND12 workshop, 2012


Martin vicar the empiric elimination of the water vapour influence emrp ind12 workshop 201213

MODEL

OVERVIEW

OBSERVATION

RESULTS

PROS & CONS

STUDY

CONCLUSION

THE RELATIVE DECREASING / INCREASING OF THE HELIUM SIGNAL

Martin Vicar ‒ The empiric elimination of the water vapour influenceEMRP IND12 workshop, 2012


Martin vicar the empiric elimination of the water vapour influence emrp ind12 workshop 201214

MODEL

OVERVIEW

OBSERVATION

RESULTS

PROS & CONS

STUDY

CONCLUSION

THERE EXIST DIFFERENT PHENOMENA WHICH SHOULD BE TAKE INTO ACCOUNT.

SOLUTIONS

CORRECT SIGNAL AS DESCRIBED ABOVE (WHEN POSSIBLE).

CLOSE THE SMALL VALVE OF THE CALIBRATED STANDARD LEAK (ENSURES MORE STABLE CONCENTRATIONS OF THE ATMOSPHERIC GASES).

USE SPECIAL APPARATUS FOR HELIUM LEAKS COMPARISON.

OPEN QUESTIONS

DOES EXIST A THEORETICAL BACKGROUND THAT COULD JUSTIFY OUR EMPIRICAL CORRECTION PROCEDURE?

Martin Vicar ‒ The empiric elimination of the water vapour influenceEMRP IND12 workshop, 2012


Martin vicar the empiric elimination of the water vapour influence emrp ind12 workshop 201215

MODEL

OVERVIEW

OBSERVATION

RESULTS

PROS & CONS

STUDY

CONCLUSION

Thank you for your attention.

Martin Vicar

[email protected]

Martin Vicar ‒ The empiric elimination of the water vapour influenceEMRP IND12 workshop, 2012


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