发明名称 |
Interchangeable differential, absolute and gage type of pressure transmitter |
摘要 |
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.
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申请公布号 |
US6473711(B1) |
申请公布日期 |
2002.10.29 |
申请号 |
US19990373930 |
申请日期 |
1999.08.13 |
申请人 |
ROSEMOUNT INC. |
发明人 |
SITTLER FRED C.;RUD, JR. STANLEY E.;GANSEN CARL R. |
分类号 |
G01L15/00;(IPC1-7):G01L13/00;G01L7/00 |
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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