发明名称 |
Flammable vapor sensor |
摘要 |
A method and apparatus for sensing a flammable vapor are described herein. Initially, a first thermal conductivity of a vapor at a first temperature and a second thermal conductivity of the vapor at a second temperature can be determined. Thereafter, a ratio of the first thermal conductivity signal to that of the second thermal conductivity can be calculated to obtain a primary "vapor" signal. The "vapor" ratio can then be compared to an "air" ratio of air without the vapor at the first temperature and the second temperature to obtain a secondary signal thereof. Such a secondary signal can then be compared to an alarm set-point value to thereby determine whether the vapor comprises a flammable vapor and a risk-reducing action thereof be taken.
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申请公布号 |
US2003235925(A1) |
申请公布日期 |
2003.12.25 |
申请号 |
US20020172710 |
申请日期 |
2002.06.14 |
申请人 |
BONNE ULRICH;GEHMAN RICHARD W. |
发明人 |
BONNE ULRICH;GEHMAN RICHARD W. |
分类号 |
G01N25/18;G01N33/00;G01N33/22;(IPC1-7):G01N1/22 |
主分类号 |
G01N25/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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