发明名称 |
Resistance based process control device diagnostics |
摘要 |
A device in a process control system includes an electrical element which has a resistance. Self heating circuitry coupled to the element provides a self heating signal related to the resistance of the element. Diagnostic circuitry provides a diagnostic output as a function of the self heating signal output.
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申请公布号 |
US6449574(B1) |
申请公布日期 |
2002.09.10 |
申请号 |
US20000616118 |
申请日期 |
2000.07.14 |
申请人 |
MICRO MOTION, INC.;ROSEMOUNT INC. |
发明人 |
ERYUREK EVREN;WARRIOR JOGESH;PATTEN ANDREW T. |
分类号 |
G01K15/00;G05B9/02;G07C3/00;G08C19/02;(IPC1-7):G06F19/00 |
主分类号 |
G01K15/00 |
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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