Electricity: measuring and testing – Electrolyte properties – Using a conductivity determining device
Reexamination Certificate
2007-10-30
2007-10-30
Benson, Walter (Department: 2858)
Electricity: measuring and testing
Electrolyte properties
Using a conductivity determining device
C324S222000, C324S663000
Reexamination Certificate
active
11244796
ABSTRACT:
A method and related apparatus for non-contact measurement of electrical conductivity of powder-like materials using eddy currents includes the steps of placing a powder to be measured in a hollow dielectric sampling container, the sampling container disposed and freely axially moving within an outer dielectric housing. An eddy-current sensor including a winding is arranged on an outside surface of the housing. Current is forced in the winding to excite the powder to generate eddy currents. The introduced active resistance is measured at the eddy-current sensor and an electrical conductivity of the powder is determined using the measured active resistance. The powder is preferably vibration compacted and the density and electrical conductivity determined at a plurality of stages during the vibration compacting step.
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Khandetskyy Volodymyr
Kohara Satoshi
Novak Peter
Red'ko Volodymyr
Shembel Elena
Akerman & Senterfitt
Benson Walter
Enerize Corporation
Zhu John
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