发明名称 |
PRESSURE TRANSMITTER FOR MEASURING DIFFERENTIAL, ABSOLUTE AND/OR GAGE PRESSURE |
摘要 |
<p>A pressure transmitter with first and second absolute pressure sensors receives process pressures from corresponding first and second process inlets. A transmitter circuit coupled to the first and second absolute pressure sensors generates a differential pressure type output. A third absolute pressure sensor coupled to the transmitter circuit receives atmospheric pressure from a third inlet. The transmitter circuit generates a second type of transmitter output that can be a gage or absolute pressure type. Single crystal. sapphire pressure sensors are preferred to provide enough accuracy for measuring accurately over 200:1 pressure range.</p> |
申请公布号 |
EP1203212(B1) |
申请公布日期 |
2005.03.30 |
申请号 |
EP20000952583 |
申请日期 |
2000.08.07 |
申请人 |
ROSEMOUNT INC. |
发明人 |
SITTLER, FRED, C.;RUD, STANLEY, E., JR.;GANSEN, CARL, R. |
分类号 |
G01L15/00;(IPC1-7):G01L15/00 |
主分类号 |
G01L15/00 |
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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