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Class Information
Number: 73/861.12
Name: Measuring and testing > Volume or rate of flow > By measuring electrical or magnetic properties > Electromagnetic induction (e.g., faraday type) > With detecting electrodes
Description: Subject matter wherein electrodes are placed in contact with the fluid or are capacitively coupled therewith to detect a potential gradient produced in the fluid along a path through the fluid extending transverse to both the magnetic field and a component of the flow direction.










Sub-classes under this class:

Class Number Class Name Patents
73/861.14 For dielectric fluids 18
73/861.16 Including electrically interconnected or synchronized input and output circuit 63
73/861.13 Including permanent magnet or d.c. field 39
73/861.15 Plural pairs of detecting electrodes 70


Patents under this class:
1 2 3 4 5 6 7 8

Patent Number Title Of Patent Date Issued
7416542 Open circuit gravity-assisted uroflowmeter Aug. 26, 2008
7412901 Magnetic-inductive flow meter with a grounding disk Aug. 19, 2008
7404335 Magnetoinductive flowmeter with galvanic measurement electrodes having a head section of a noble material Jul. 29, 2008
7403862 Method for operating a process-measuring device Jul. 22, 2008
7383739 Magnetoinductive flowmeter having an electrode with an electroconductive diamond coating Jun. 10, 2008
7380468 Device for integrating electrodes characterizing the flow of a multiphase fluid in a tubing Jun. 3, 2008
7369949 Electromagnetic flowmeter May. 6, 2008
7343817 Magnetic flow meter with unibody construction and conductive polymer electrodes Mar. 18, 2008
7340963 Method for magneto-inductive determination of the flow rate of a medium Mar. 11, 2008
7318354 Magnetoinductive flowmeter with a two-part insert Jan. 15, 2008
7293468 Electromagnetic flowmeter Nov. 13, 2007
7293469 Electromagnetic flow meter having electropolished electrodes Nov. 13, 2007
7287435 Inductive flow meter for electrically conductive liquids Oct. 30, 2007
7272978 Magnetic-inductive flow meter with an electrically isolated measuring tube Sep. 25, 2007
7270014 Magnetoinductive flowmeter with sealed coils Sep. 18, 2007
7267012 Electromagnetic flowmeter including electrodes and magnetic pole placed in proximity on one side of the outer wall Sep. 11, 2007
7265544 Method and device for detecting physical-chemical states on measuring electrodes of a flowmeter Sep. 4, 2007
7261001 Magnetoinductive flowmeter and method for producing a magnetoinductive flowmeter Aug. 28, 2007
7257495 Flow meter filter system and method Aug. 14, 2007
7228748 Electromagnetic flow meter insert Jun. 12, 2007
7225683 Composition pulse time-of-flight mass flow sensor Jun. 5, 2007
7219557 Method and apparatus for calculating flowing medium temperature in a magnetoinductive flowmeter May. 22, 2007
7213467 Flowmeter May. 8, 2007
7194918 Magnetoinductive flowmeter and method for operating a magnetoinductive flowmeter Mar. 27, 2007
7155983 Magnetic flow meter with unibody construction and conductive polymer electrodes Jan. 2, 2007
7146280 Startup and operational techniques for a digital flowmeter Dec. 5, 2006
7137307 Magnetic-inductive measuring device for flowing substances and method for its production Nov. 21, 2006
7124645 Magnetic-inductive measuring device for flowing substances and method for its production Oct. 24, 2006
7117749 Electromagnetic flow meter for low conductivity fluids Oct. 10, 2006
7117750 Method for operating a magnetoinductive flowmeter Oct. 10, 2006
7114400 Magnetoinductive flowmeter and method for operating a magnetoinductive flowmeter Oct. 3, 2006
7079958 Method for operating a process-measuring device Jul. 18, 2006
7073393 Magnetic flowmeter with built-in simulator Jul. 11, 2006
7070324 Method and device for system and/or process monitoring Jul. 4, 2006
7055396 Sensor assembly for magnetic flowmeter and method of manufacture Jun. 6, 2006
7047821 Magnetoinductive flowmeter and method for producing a measuring tube for a magnetoinductive flowmeter May. 23, 2006
7028558 Method for measuring a medium that flows through a measuring tube Apr. 18, 2006
6986289 Torque-detecting arrangement or wear detecting arrangement for a friction clutch Jan. 17, 2006
6983661 Electromagnetic flow sensor Jan. 10, 2006
6973839 Electromagnetic flow meter having processing means resolving output data into a non-flow waveform component Dec. 13, 2005
6973840 Comprehensive electromagnetic flowmeter Dec. 13, 2005
6971271 Fluid flow measuring device and method of manufacturing thereof Dec. 6, 2005
6962087 Electromagnetic flow meter Nov. 8, 2005
6937943 Device and method for system and process supervision in a magneto-inductive sensor Aug. 30, 2005
6931943 Permanent magnet flowmeter with noncircular sensing passage Aug. 23, 2005
6922059 Electric field sensor Jul. 26, 2005
6917205 Microwave-resonator and measuring device Jul. 12, 2005
6865956 Electromagnetic flowmeter Mar. 15, 2005
6850850 Fluid filter flowmeter self-generating power source system and method Feb. 1, 2005
6843136 Magnetoinductive flowmeter Jan. 18, 2005

1 2 3 4 5 6 7 8










 
 
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