Contactless method for polymer coating thickness measurement
US11852457B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2021 |
| Grant date | Dec 26, 2023 |
| Priority date | — |
| Expiry date | Apr 4, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for measuring a thickness of a coating arranged on an anode substrate includes an optical measurement system configured to transmit a light signal having a known first polarization toward the anode substrate through the coating such that the light signal is reflected from the surface of the anode substrate, a detection module positioned to receive the reflected light signal and configured to determine a second polarization of the reflected light signal that is different from the first polarization and measure a polarization difference between the first polarization and the second polarization, and a measurement module configured to receive the measured polarization difference, calculate the thickness of the coating based on the measured polarization difference, and generate an output based on the calculated thickness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.