Rolling principal component analysis for dynamic process monitoring and end point detection
US12188820B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 1, 2024 |
| Grant date | Jan 7, 2025 |
| Priority date | — |
| Expiry date | Feb 1, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/1293
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In some implementations, a device may receive spectroscopic data associated with a dynamic process. The device may generate a principal component analysis (PCA) model based on a first block of spectra from the spectroscopic data. The device may project a second block of spectra from the spectroscopic data to the PCA model generated based on the first block of spectra. The device may determine a value of a metric associated with the second block based on projecting the second block of spectra to the PCA model. The device may determine whether the dynamic process has reached an end point based on the value of the metric associated with the second block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.