Capacitance-type electrode assemblies for electromagnetic flowmeter

摘要: An electromagnetic flowmeter for metering the flow rates of fluids low conductivity, including a non-magnetic spool within which is disposed pair electrode assemblies at diametrically-opposed positions embedded with an insulating layer molded against inner surface spool. Each assembly constituted by curved measuring plate and shielding concentric spool, face being exposed. Received covering faces plates tubular liner made dielectric material whose properties are appropriate to fluid metered, defining conduit fluid. In operation, each forms one capacitor other electrodes acting as capacitance-sensor detect voltage induced in when it intercepts magnetic field lines flux normal direction.