Wavelength modulated photoacoustic spectrometer
US6552792B1 · kind B1 · utility
13Cited by
3References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 13, 2000 |
| Grant date | Apr 22, 2003 |
| Priority date | — |
| Expiry date | Mar 10, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/399
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A wavelength modulated photoacoustic spectrometry system and method comprising: generating light from a light source; passing the light through a sample area; sampling sound produced by the light passing through the sample area with an acoustic detector; and controlling wavelength of the light with a wavelength controller, wherein the wavelength controller modulates the wavelength according to a waveform comprising square components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.