An automatic liquid nitrogen filling system

An automatic liquid nitrogen filling system

Spectroscopic measurements at low temperature require liquid nitrogen in some type of research dewar. Often the research dewar must be refilled from a reservoir dewar several times during the course of an experiment. A system is described which automatically refills a research dewar from a reservoir...

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Veröffentlicht in:Cryogenics (Guildford) 1981-01, Vol.21 (9), p.540-542
Hauptverfasser: Monaghan, C.P., O'Brien Jr, E.J., Good, M.L.
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Sprache:eng
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container_end_page 542
container_issue 9
container_start_page 540
container_title Cryogenics (Guildford)
container_volume 21
creator Monaghan, C.P.
O'Brien Jr, E.J.
Good, M.L.
description Spectroscopic measurements at low temperature require liquid nitrogen in some type of research dewar. Often the research dewar must be refilled from a reservoir dewar several times during the course of an experiment. A system is described which automatically refills a research dewar from a reservoir dewar. Two sensors are used for detecting the liquid nitrogen level in the research dewar, and an external nitrogen gas supply is used to provide the pressure to effect the transfer of liquid nitrogen.
doi_str_mv 10.1016/0011-2275(81)90030-8
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source ScienceDirect Journals (5 years ago - present)
title An automatic liquid nitrogen filling system
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