发明名称 |
Electromagnetic flow meter |
摘要 |
An electromagnetic flow meter which performs a zero-point and span calibrating operation and an initial setting verifying operation in an inspection mode which is inserted on an interrupt basis at a certain frequency during a measurement mode. Flow measurement data in each inspection mode is calculated using measurement data preceding and/or following the inspection mode, whereby an inspection operation is implemented without leaving the flow measurement data indeterminate in each period of the inspection mode.
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申请公布号 |
US4676112(A) |
申请公布日期 |
1987.06.30 |
申请号 |
US19860836824 |
申请日期 |
1986.03.06 |
申请人 |
HITACHI, LTD. |
发明人 |
UEMATSU, IKUO;TAKAHASHI, TOSHIO |
分类号 |
G01F1/60;(IPC1-7):G01F1/60 |
主分类号 |
G01F1/60 |
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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