发明名称 |
METHODS AND SYSTEMS FOR TEMPERATURE COMPENSATION OF PHYSICAL PROPERTY SENSORS |
摘要 |
<p>Temperature compensation methods for physical property sensors are disclosed herein, based on a simple bridge circuit. An imbalance of the bridge circuit can be driven to a zero value, while a supply voltage thereof is simultaneously driven to a level required to bring the heating element to the temperature rise above ambient temperature that optimally compensates for a number of temperature-dependent effects. The heating element can be configured as a thin-film heating material. The resulting total temperature dependence of the measuring system, which includes the heating element, the bridge-circuit with amplifier and the fluid to be measured, can be reduced to a level at which the need for additional digital temperature compensation circuitry and its associated costs may be reduced.</p> |
申请公布号 |
WO2005022137(A1) |
申请公布日期 |
2005.03.10 |
申请号 |
WO2004US27920 |
申请日期 |
2004.08.27 |
申请人 |
HONEYWELL INTERNATIONAL INC.;BONNE, ULRICH;KUBISIAK, DAVID |
发明人 |
BONNE, ULRICH;KUBISIAK, DAVID |
分类号 |
G01N27/18;(IPC1-7):G01N27/18;G01F1/68;G01F1/696;G01F1/698;G01N25/00;G01N25/18 |
主分类号 |
G01N27/18 |
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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