发明名称 |
Method and device for measuring the flow of a fluid |
摘要 |
To measure the flow in a liquid, the liquid (1) is led in a duct (2) along a flow sensor (3). The flow sensor (3) is integrated together with a processing and control circuit on a semiconductor substrate. It comprises a heating and, symmetrically thereto, two temperature sensors. The flow is determined from the temperature difference between the temperature sensors and/or from the power dissipation of the heating. For calibrating the sensor, a valve (4) is provided by means of which the duct (2) can be interrupted. This arrangement allows a flow measurement of high accuracy.
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申请公布号 |
US2003115952(A1) |
申请公布日期 |
2003.06.26 |
申请号 |
US20020257791 |
申请日期 |
2002.10.17 |
申请人 |
MAYER FELIX;HAEBERLI ANDREAS MARTIN |
发明人 |
MAYER FELIX;HAEBERLI ANDREAS MARTIN |
分类号 |
G01F1/684;(IPC1-7):G01F1/68 |
主分类号 |
G01F1/684 |
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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