Abstract
A device and a method for optical measurement of a target, wherein the target is irradiated with radiation beam (15) and a measurement beam (27) is received from the target and detected. Commonly used absorbance, reflectance and fluorescence measurements do not provide adequate information in e.g. measuring small contents of sulphur compounds. The present solution provides a new Raman spectrometer which is suitable for mass applications. A target is activated with pulses of a laser diode (12). The Raman signatures are measured and integrated successively with a point detector (44). A Fabry-Perot interferometer (42) on the measurement path is successively controlled into corresponding pass bands. While high spectral resolution or range is not required it is possible to use small-sized and low cost components.
Patent family as of 12.11.2021
EP3060890 A1 20160831 EP20140855616 20141021
EP3060890 A4 20171122 EP20140855616 20141021
US2016252394 AA 20160901 US20140030697 20141021
US9772228 BB 20170926 US20140030697 20141021
WO15059353 A1 20150430 WO2014FI50791 20141021
Link to current patent family on right
| Original language | English |
|---|---|
| Patent number | US2016252394 |
| IPC | G01J 3/ 26 A I |
| Priority date | 21/10/14 |
| Publication status | Published - 1 Sept 2016 |
| MoE publication type | H1 Granted patent |