发明名称 |
METHOD AND DEVICE FOR MEASURING THERMAL CONDUCTIVITY, AND GAS COMPONENT RATIO MEASURING DEVICE |
摘要 |
<p>A heat radiation coefficient C [=Ph/(Th-To)] from a microheater is calculated in accordance with a power Ph applied to the microheater which is supported in air and provided in an ambient gas, a heater temperature Th, and an ambient temperature To at this moment. Further, a thermal conductivity » (T) of the ambient gas is obtained from the calculated heat radiation coefficient C based on a proportional relation [C=K·» (T) ] between a thermal conductivity » (T) of the ambient gas and the heat radiation coefficient C at a measurement temperature T [=(Th-To)/2].</p> |
申请公布号 |
EP1947450(A4) |
申请公布日期 |
2015.12.30 |
申请号 |
EP20060798312 |
申请日期 |
2006.09.25 |
申请人 |
AZBIL CORPORATION |
发明人 |
OOISHI, YASUHARU;AOSHIMA, SHIGERU;SHINGYOUJI, NOBUYOSHI;HAYASHI, YASUE;MORIO, SHUJI |
分类号 |
G01N25/18;G01N27/18;G01N33/22 |
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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