公开(公告)号：US06779385B2

公开(公告)日：2004-08-24

申请号：US10194265

申请日：2002-07-15

申请人： Michel Belanger

发明人： Michel Belanger

IPC分类号： G01N3338

CPC分类号： G01N33/2847 ,  G01N27/223

摘要： A method and device for monitoring moisture content level of a solid dielectric material, or paper, immersed in a dielectric fluid, or oil, both of which having respective moisture content, and known water solubility properties varying with temperature. The device includes a moisture detector and a temperature detector for measuring moisture content level and temperature level of the oil, respectively. A microprocessor, electrically connected to both the moisture and the temperature detectors, computes the moisture content level of the paper. The microprocessor has the known water solubility properties of the paper and the oil stored therein and processes the oil moisture content level and the oil temperature level so as to determine the paper moisture content level. The latter being displayed on a display connected to the microprocessor.

公开(公告)号：US06297058B1

公开(公告)日：2001-10-02

申请号：US09231025

申请日：1999-01-14

申请人： William David Reents, Jr.

发明人： William David Reents, Jr.

IPC分类号： G01N3338

CPC分类号： G01N33/004 ,  G01N33/005 ,  G01N33/38 ,  Y10T436/23

摘要： A small sample of a refractory material, e.g., about 0.1 g to about 10 g, is heated to at least 1000° C., generally under a pressure of less than about 10−5 Torr. Evolved hydrogen-containing gases and/or carbon-containing gases are monitored, e.g., by mass spectrometry, and, based on the amount of the evolved gases, the concentration of hydrogen and/or carbon in the sample is calculated. It is therefore possible to accurately determine the hydrogen and carbon concentration from a small sample of a material, by a process much less burdensome than conventional techniques.

摘要翻译： 耐火材料的小样品，例如约0.1g至约10g，通常在小于约10-5乇的压力下加热至至少1000℃。 例如通过质谱监测含有进气的含氢气体和/或含碳气体，并且基于放出气体的量，计算样品中氢和/或碳的浓度。 因此，可以通过比常规技术不那么繁重的工艺来精确地确定来自材料的小样品的氢和碳浓度。