Elliptical photo-acoustic sensor
US8117897B2 · kind B2 · utility
4Cited by
23References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 26, 2007 |
| Grant date | Feb 21, 2012 |
| Priority date | — |
| Expiry date | Dec 22, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/014
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An elliptical photo-acoustic spectrometer chamber design will result in a larger intensity signal at the pick-up microphone and allow high frequency light modulation. This makes the spectrometer have a lower limit of detection threshold, and will increase the signal to noise ratio in general for the instrument, resulting in a more sensitive instrument allowing more precise measurements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.