发明名称 |
THERMAL AIR FLOW METER |
摘要 |
A thermal air flow meter is equipped with a flow rate detector utilizing the phenomenon that heat is carried away in proportion to flow rate. The flow rate detector comprises a support, a heat-sensitive resistor formed on the support and leads attached to both ends of the support. To make the temperature distribution uniform, the heat-sensitive resistor is formed in such a manner that the resistance per unit length of the heat-sensitive resistor at either end of the support is greater than the resistance per unit length of the heat-sensitive resistor at the center of the support. This arrangement can provide a thermal air flow meter which has a rapid response to changes in flow rate. |
申请公布号 |
DE3465515(D1) |
申请公布日期 |
1987.09.24 |
申请号 |
DE19843465515 |
申请日期 |
1984.03.02 |
申请人 |
HITACHI, LTD. |
发明人 |
SATO, KANEMASA;UENO, SADAYASU |
分类号 |
G01F1/68;G01F1/684;G01F1/69;G01F1/692;G01F1/698;(IPC1-7):G01F1/68;F02D41/00;G01P5/12 |
主分类号 |
G01F1/68 |
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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