发明名称 |
Method and device for determining gas flow |
摘要 |
A gas flow determination method and a corresponding gas flow determination device. A sensor device including a diaphragm and a frame enclosing it is provided; a predetermined temperature profile is created on the diaphragm; the gas flow to be determined is directed over the diaphragm in a predetermined direction of flow; the change in the temperature profile caused by the gas flow is detected; and the gas flow is determined on the basis of the change thus detected. The temperature at a third location on the diaphragm upstream from the first location and optionally at a fourth location downstream from the second location is regulated at a value corresponding to the local value of the predetermined temperature profile. In this manner, the effect of soiling on the diaphragm may be minimized effectively.
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申请公布号 |
US6820482(B2) |
申请公布日期 |
2004.11.23 |
申请号 |
US20030169630 |
申请日期 |
2003.01.03 |
申请人 |
ROBERT BOSCH GMBH |
发明人 |
LEMBKE MANFRED;HECHT HANS;KONZELMANN UWE |
分类号 |
G01P5/10;G01F1/684;G01F1/692;G01F1/696;G01P5/12;(IPC1-7):G01F1/68 |
主分类号 |
G01P5/10 |
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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