The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 09, 2025
Filed:
Nov. 23, 2022
Itron, Inc., Liberty Lake, WA (US);
Stephane Vago, Pont de L Isere, FR;
Patrice Carre, Ecully, FR;
Gregory Pastor, Massy, FR;
Vincent Mosser, Le Plessis-Robinson, FR;
Abstract
A capacitive electrical conductivity sensor is integrated into a water meter. The sensor is used to determine water conductivity, which may be used to determine water quality. A model of a capacitor, a flow of water, and a plastic conduit used to conduct the flow of water passing through a water meter is defined. The model may include a circuit having a constant phase element (CPE) connected to a resistor Rand a capacitor Cin parallel. An input signal may be applied to the actual capacitor (not the model) over a range of frequencies. Current flow associated with several frequencies may be used to identify values of Qand alpha of the CPE of the model. A value for the resistor Ris identified using values obtained from measurements. A conductivity of the flow of water may be derived using input values comprising R, and the values of Qand alpha of the CPE of the model.