Patent ID: 11887753
Assignee: BATTELLE MEMORIAL INSTITUTE
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A method for assessing cable insulation, the method comprising:
engaging a first tine gap interdigital capacitor assembly with a first portion of the exterior of the cable jacket, the first tine gap interdigital capacitor assembly comprising a first electrode, and the engaging comprising aligning the first electrode on the exterior of the cable jacket;
determining a first capacitance or dissipation value of the insulation using the first tine gap interdigital capacitor assembly;
engaging a second tine gap interdigital capacitor assembly with a second portion of the exterior of the cable jacket, the second tine gap interdigital capacitor assembly comprising a second electrode, and the engaging comprising aligning the second electrode on the exterior of the cable jacket;
determining a second capacitance or dissipation value of the insulation using the second tine gap interdigital capacitor assembly, wherein the first and second tine gap interdigital capacitor assemblies have different gap widths; and
estimating capacitance or dissipation factor of the insulation using a calibrated regression model, wherein said estimating includes calibrating the regression model by determining 2-factor linear regression coefficients of the regression model based on the first and second values.