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US 6,584,859 B1Granted
Magnetically inductive flowmeter for flowing media
AssigneeKROHNE Messtechnik GmbH
InventorsHelmut Brockhaus, Wilhelm Florin, Christiaan Johan Hoogendijk
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AssigneeKROHNE Messtechnik GmbH
InventorsHelmut Brockhaus, Wilhelm Florin, Christiaan Johan Hoogendijk
Estimating the term…
A magnetically inductive flowmeter for flowing media, with a measuring tube, with a magnet for generating a magnetic field passing essentially perpendicular to the axis of the measuring tube and to the direction of the magnetic field, with at least two measuring electrodes arranged along a connecting line passing essentially perpendicular to the axis of the measuring tube and to the direction of the magnetic field, with a reference electrode and with a difference amplifier having a reference potential connection connected with the measuring electrodes via measuring electrode connections and serving for amplification of the measuring voltage present on the measuring electrodes. The magnetically inductive flowmeter has lower demands for the measures for producing a reference potential because the reference potential connection of the difference amplifier is connected only with the reference electrode and the reference electrode is connected only with the reference potential connection of the difference amplifier and because the difference amplifier is not connected with a potential equalization.
A magnetically inductive flowmeter for flowing media, with a measuring tube (1), with a magnet for generating a magnetic field passing at least essentially perpendicular to the axis of the measuring tube, with at least two measuring electrodes (3) arranged along a connecting line passing essentially perpendicular to the axis of the measuring tube and to the direction of the magnetic field, with a reference electrode (4) and with a difference amplifier (6) having a reference potential connection (11) and connected with the measuring electrodes (3) via measuring electrode connections (5) and serving for amplifying the measuring voltage applied to the measuring electrodes (3), wherein the reference potential connection (11) of the difference amplifier (6) is connected only with the reference electrode (4) and the reference electrode (4) is connected only with the reference potential connection (11) of the difference amplifier (6), and the difference amplifier (6) is not connected with a potential equalization.
A magnetically inductive flowmeter for flowing media, with a measuring tube (1), with a magnet for generating a magnetic field passing at least essentially perpendicular to the axis of the measuring tube, with at least two measuring electrodes (3) arranged along a connecting line passing essentially perpendicular to the axis of the measuring tube and to the direction of the magnetic field, and with a difference amplifier (6) having a reference potential connection (11) and connected with the measuring electrodes (3) via measuring electrode connections (5) and serving for the amplification of the measuring voltage present on the measuring electrodes (3), wherein the reference potential connection (11) of the difference amplifier (6) is connected only with at least one measuring electrode (3), and the difference amplifier (6) is not connected with a potential equalization.
Dependencies are inferred from the claim text.