Apparatus and method for measuring concentrations of components with light scattering
US5481113A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 2, 1994 |
| Grant date | Jan 2, 1996 |
| Priority date | — |
| Expiry date | Aug 2, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/359
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus and a method for measuring concentrations of components with light scattering allows measurement of concentrations of components in a measuring object to be accomplished in non-destructive fashion by using light in near-infrared wavelength ranges with good transmissivity and relatively low light quantum energy. The apparatus is composed of a light irradiator (1) for irradiating excited light in a near-infrared wavelength range to a measuring object (16), a photodetector (2) for receiving and spectrally separating Raman scattered light derived from the measuring object (16), and an arithmetic unit (3) for calculating concentration of a component in the measuring object (16) from intensity of the Raman scattered light and outputting a calculation result.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.