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Title: Characterization of dielectric materials

Patent ·
OSTI ID:1366497

A system and a method for characterizing a dielectric material are provided. The system and method generally include applying an excitation signal to electrodes on opposing sides of the dielectric material to evaluate a property of the dielectric material. The method can further include measuring the capacitive impedance across the dielectric material, and determining a variation in the capacitive impedance with respect to either or both of a time domain and a frequency domain. The measured property can include pore size and surface imperfections. The method can still further include modifying a processing parameter as the dielectric material is formed in response to the detected variations in the capacitive impedance, which can correspond to a non-uniformity in the dielectric material.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-00OR22725
Assignee:
UT-Battelle, LLC
Patent Number(s):
9,689,822
Application Number:
14/602,370
OSTI ID:
1366497
Resource Relation:
Patent File Date: 2015 Jan 15
Country of Publication:
United States
Language:
English

References (9)

Apparatus for Capacitive Measurement of Coating Thickness Utilizing a Square Wave Source and Galvanometer Responsive to Unidirectional Discharge Current patent March 1966
Non-Destructive Electromagnetic Energy Testing Of Web Material patent February 1973
Differential dielectric analyzer patent May 1994
Sensor for evaluating dielectric properties of specialized paper patent May 2001
Method of and apparatus for detecting cracks in piezoelectric element patent November 2014
Method and apparatus for characterization of porous films patent-application May 2003
Test method patent-application December 2003
Method for determining at least one state parameter of a sealing system and sealing system patent-application October 2006
Printing System with Receiver Capacitance Estimation patent-application October 2013