Capacitive level meter for liquid hydrogen

被引：10

作者：

Matsumoto, Koichi ^{[1
]}

Sobue, Masamitsu ^{[1
]}

Asamoto, Kai ^{[1
]}

Nishimura, Yuta ^{[1
]}

Abe, Satoshi ^{[1
]}

Numazawa, Takenori ^{[2
]}

机构：

[1] Kanazawa Univ, Dept Phys, Kanazawa, Ishikawa 9201192, Japan

[2] Natl Inst Mat Sci, Exploratory Mat Res Labs Energy & Environm, Tsukuba, Ibaraki 3050003, Japan

来源：

CRYOGENICS | 2011年 / 51卷 / 02期

关键词：

Hydrogen; Dielectric properties; Level detection;

D O I：

10.1016/j.cryogenics.2010.11.005

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A capacitive level meter working at low temperatures was made to use in magnetic refrigerator for hydrogen liquefaction. The liquid level was measured from the capacitance between parallel electrodes immersed in the liquid. The meter was tested for liquid nitrogen, hydrogen, and helium. The operation was successful using an AC capacitance bridge. The estimated sensitivity of the meter is better than 0.2 mm for liquid hydrogen. The meter also worked with pressurized hydrogen. (c) 2010 Published by Elsevier Ltd.

引用

页码：114 / 115

页数：2

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