Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Z. Krajíček"'
Publikováno v:
Proceedings of the 6th IMEKO TC16 Conference on Pressure and Vacuum Measurement.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7cd512d81bdd69f44d03f23cf97eb33d
https://doi.org/10.21014/tc16-2022.106
https://doi.org/10.21014/tc16-2022.106
Publikováno v:
Vacuum. 101:377-381
A multi-opening orifice is a device for the primary measurement of gas flows and related vacuum quantities. This device maintains a constant molecular flow regime and thus the possibility to very accurately calculate the conductance from the geometri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a471d6e1bce70e4105d1295484d4477a
https://doi.org/10.1016/j.vacuum.2013.10.014
https://doi.org/10.1016/j.vacuum.2013.10.014
Autor:
T. Gronych, P. Řepa, L. Peksa, Martin Vičar, F. Staněk, Dominik Pražák, J. Tesař, Z. Krajíček, M. Jeřáb
Publikováno v:
Measurement. 44:1143-1152
Construction of constant-pressure gas flowmeters utilizing directly driven bellows and diaphragm bellows as volume displacers were described in recent decades. They have important advantages: accuracy, reliability, easy operation and maintenance. Dif
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::86b1eda9d0ee6d35d0a29edcc7c4b368
https://doi.org/10.1016/j.measurement.2011.03.008
https://doi.org/10.1016/j.measurement.2011.03.008
Autor:
J. Tesař, Dominik Pražák, P. Řepa, Martin Vičar, Z. Krajíček, F. Staněk, M. Jeřáb, T. Gronych, L. Peksa
Publikováno v:
Vacuum. 85:1047-1051
The main obstacle in the construction of primary vacuum standards for very low pressures – ultra-high vacuum (UHV) – is outgassing from the walls of the apparatus. Thus, principles utilising a higher pumping rate in the calibration chamber, e.g.,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9d8d6f5fc1f8f20b6fe0d3d2a403c365
https://doi.org/10.1016/j.vacuum.2011.03.019
https://doi.org/10.1016/j.vacuum.2011.03.019
Publikováno v:
Measurement Science and Technology. 29:095011
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f078973cb9e557f5aa4a6234660d4954
https://doi.org/10.1088/1361-6501/aad1e2
https://doi.org/10.1088/1361-6501/aad1e2
Publikováno v:
Metrologia. 45:368-375
The pumping speed of a pump in an orifice flow standard was measured to enable calculation of the effective pumping speed in the calibration chamber. The main problems are as follows. (1) The pumping speed of a pump connected to a chamber of finite s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::75c4c32ccf3becbbd7a25e199dbf302d
https://doi.org/10.1088/0026-1394/45/3/015
https://doi.org/10.1088/0026-1394/45/3/015
Publikováno v:
Metrologia. 45:46-52
A constant pressure gas flowmeter using a directly driven diaphragm bellows as a volume displacer was studied. This flowmeter is perfectly vacuum-sealed, does not contain elastomers and liquids that would prevent outgassing at elevated temperatures a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::409e8827bbeeb0e951608aef227ad32b
https://doi.org/10.1088/0026-1394/45/1/007
https://doi.org/10.1088/0026-1394/45/1/007
Autor:
Martin Vičar, L. Peksa, T. Gronych, František Staněk, P. Řepa, Z. Krajíček, Dominik Pražák, J. Tesař
Publikováno v:
Vacuum. 84:280-282
The conductance of an NPL orifice in the molecular regime is constant and can be exactly calculated from the geometric dimensions. For smaller Knudsen numbers the conductance increases and correction functions are employed to reduce the uncertainty i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1d7368145a6335a85f869142f2e0ee27
https://doi.org/10.1016/j.vacuum.2009.04.009
https://doi.org/10.1016/j.vacuum.2009.04.009
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.