Fuzzy pressure controller for helium bath cryostats.
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F02%3A12020026" target="_blank" >RIV/68081731:_____/02:12020026 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Fuzzy pressure controller for helium bath cryostats.
Original language description
Pressure stability of about 10 Pa/h is necessary for precise measurementsof the helium evaporation rate of the low loss cryostats. A pressure controller fulfilling this requirement was designed and tested. It consists ofan absolute pressure sensor, an electronic fuzzy controller and a proportional electromagnetic valve. Computer simulation of the system behaviour was used for the controller tuning. The minimization of the final deviationwas preferred to the reaction speed. The operational properties ofthe controller were verified at the tests of a helium dewar. The controller was utilised at the development of a small helium cryopump.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
BJ - Thermodynamics
OECD FORD branch
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Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2002
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Proceedings of 7th Cryogenics IIR international conference.
ISBN
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ISSN
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e-ISSN
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Number of pages
4
Pages from-to
53-56
Publisher name
ICARIS
Place of publication
Praha
Event location
Praha [CZ]
Event date
Apr 23, 2002
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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