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Design and development of membrane pressure regulator for cryogenic applications

This paper investigates different possibilities of measurement and control of pressure in the cryostat filled with liquid nitrogen. Laboratory designed membrane pressure regulator for automatic control of pressure in the range from 0.9 to 1.3 bar gauge in the cryostat is presented. The performance of the special purpose regulator is evaluated through measurement of pressure deviations from set-point value and their effect on thermal conditions in the cryostat. Results are compared to values obtained using manual pressure regulator.

cryostat ; pressure ; regulation ; liquid nitrogen

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