LIQUID VAPOR SURFACE SENSORS FOR LIQUID-NITROGEN AND HYDROGEN

被引：5

作者：

SIEGWARTH, JD

VOTH, RO

SNYDER, SM

机构：

[1] National Institute of Standards and Technology, Chemical Science and Technology Laboratory, Boulder, CO 80303-3328

来源：

CRYOGENICS | 1992年 / 32卷 / 02期

关键词：

SPACE CRYOGENICS; SURFACE SENSING; LIQUID VAPOR INTERFACE;

D O I：

10.1016/0011-2275(92)90273-D

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Tests of resistance thermometers as liquid - vapour interface sensors for LH2 and LN2 showed that most could be made to detect the liquid surface, but a tiny silicon sensor developed at NASA Goddard Space Flight Center gave the fastest response. Tests of a commercial optical surface sensor and two modified versions of it showed that optical sensors can reliably and rapidly detect the liquid - vapour interface of both hydrogen and nitrogen.

引用

页码：236 / 242

页数：7