发明名称 |
GAS METER INCORPORATING CALORIFIC MEASUREMENT |
摘要 |
A gas meter (10) determining the calorific value of the gas passing through the meter is disclosed. The meter includes a reaction chamber (28) that draws gas from the gas flow path and an air intake (30). The calorific value is determined using a resistor (36), coated with a catalyst material, that forms part of a wheatstone bridge circuit. Oxidation of the gas/air mixture on the surface of the resistor (36) causes a temperature and resistance change dependent on the calorific value of the gas that can be detected by the wheatstone bridge. |
申请公布号 |
EP1070231(A4) |
申请公布日期 |
2002.01.16 |
申请号 |
EP19990913009 |
申请日期 |
1999.04.08 |
申请人 |
EMAIL LIMITED |
发明人 |
TRIMM, DAVID, LAWRENCE;TORPY, KEITH, MARIO |
分类号 |
G01N27/16;G01N33/22 |
主分类号 |
G01N27/16 |
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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