Measuring and testing – Volume or rate of flow – By measuring electrical or magnetic properties
Patent
1986-03-06
1987-06-30
Ruehl, Charles A.
Measuring and testing
Volume or rate of flow
By measuring electrical or magnetic properties
73 3, G01F 160
Patent
active
046761128
ABSTRACT:
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.
REFERENCES:
patent: 4545257 (1985-10-01), Tomita
Takahashi Toshio
Uematsu Ikuo
Hitachi , Ltd.
Ruehl Charles A.
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