Simultaneous multi-beam planar array IR (pair) spectroscopy
US6943353B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 1, 2004 |
| Grant date | Sep 13, 2005 |
| Priority date | — |
| Expiry date | Apr 30, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/3577
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus and method capable of providing spatially multiplexed IR spectral information simultaneously in real-time for multiple samples or multiple spatial areas of one sample using IR absorption phenomena requires no moving parts or Fourier Transform during operation, and self-compensates for background spectra and degradation of component performance over time. IR spectral information and chemical analysis of the samples is determined by using one or more IR sources, sampling accessories for positioning the samples, optically dispersive elements, a focal plane array (FPA) arranged to detect the dispersed light beams, and a processor and display to control the FPA, and display an IR spectrograph. Fiber-optic coupling can be used to allow remote sensing. Portability, reliability, and ruggedness is enhanced due to the no-moving part construction. Applications include determining time-resolved orientation and characteristics of materials, including polymer monolayers. Orthogonal polarizers may be used to determine certain material characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.