发明名称 |
Fluid flow rate sensor has single heating sensing resistance with regular switching to sensor voltage to measure and control heating and cooling phase times |
摘要 |
<p>A fluid flow rate sensor has an electrical resistance in thermal contact with the fluid with circuit to switch regularly between heating and negligible measurement voltages using a precision Schmitt trigger to compare the temperature sensing voltage with upper and lower thresholds so that the heating and cooling phase times can be measured.</p> |
申请公布号 |
DE202005008774(U1) |
申请公布日期 |
2005.09.29 |
申请号 |
DE20052008774U |
申请日期 |
2005.06.02 |
申请人 |
OTTO-VON-GUERICKE-UNIVERSITAET MAGDEBURG |
发明人 |
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分类号 |
G01F1/68;G01F1/696;G01F1/698;G01P5/12;(IPC1-7):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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