Electrical contact free method for measuring residual solvent within an emulsion or porous media
AssigneeAnalog Devices International Unlimited Company
InventorsNeal Tait Kurfiss, Jonathan Ephraim David Hurwitz
Life of this patent
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Abstract
A measurement apparatus includes at least one conductive sensing plate; and a capacitance measurement circuit connected to the sensing plate. The capacitance measurement circuit is configured to measure a capacitance that includes the sensing plate, a substrate, and a residual solvent on the substrate when the substrate is arranged below the sensing plate and provide information of the residual solvent on the substrate using the measured capacitance.
Claims20
A method of detecting residual solvent for an electrode material disposed on a substrate, the method including:
- arranging a conductive sensing plate at a position opposing the substrate;
- measuring a capacitance that includes the sensing plate, the substrate, and the electrode material on the substrate;
- and
- providing information of the residual solvent in the electrode material on the substrate using the measured capacitance.
A measurement apparatus comprising:
- at least one conductive sensing plate;
- and
- a capacitance measurement circuit connected to the sensing plate and configured to:
- measure a capacitance that includes the sensing plate, a substrate, an electrode material, and a residual solvent of a solvent of the electrode material on the substrate when the substrate is arranged below the sensing plate;
- and
- provide information of the residual solvent in the electrode material on the substrate using the measured capacitance.
A system to detect residual solvent for an electrode material in a medium that includes the electrode material disposed on a substrate, the system comprising:
- multiple electromagnetic impedance sensors configured to:
- apply a modulating electrical signal to the medium and the substrate;
- determine an electromagnetic impedance of the substrate and the medium, that includes the electrode material and the residual solvent, at multiple locations of the substrate;
- and
- detect the residual solvent among the multiple locations on the substrate using the determined electromagnetic impedance.
Dependencies are inferred from the claim text.