Back to results
US 2003/0188581 A1Published application
Device for inline measurement laser pulses and measuring method by photoacoustic spectroscopy
AssigneeCommissariat a l'Energie Atomique
InventorsDaniele Roudil, Laurent Couston, Jacques Delage, Mathieu Brutel
Life of this patent
Estimating the term…
Abstract
A piezoelectric sensor (7) is dedicated to making a precise measurement of the light amplitude of pulses (2) from a laser (1), so that quantitative measurements such as photo-acoustic spectroscopy can be used to precisely measure the concentration of some bodies in a solution.
Claims5
Device for online measurement of pulses (2) of a laser (1), characterized in that it comprises a piezoelectric sensor (7) not provided with a protection layer and with a resonant frequency at least fifty times lower than the inverse of the duration of the pulses.
Dependencies are inferred from the claim text.