Patents by Inventor Danièle Roudil

Danièle Roudil has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Device for inline measurement laser pulses and measuring method by photoacoustic spectroscopy
    Patent number: 6937340
    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.
    Type: Grant
    Filed: October 22, 2001
    Date of Patent: August 30, 2005
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Danièle Roudil, Laurent Couston, Jacques Delage, Mathieu Brutel
  • Device for inline measurement laser pulses and measuring method by photoacoustic spectroscopy
    Publication number: 20030188581
    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.
    Type: Application
    Filed: April 15, 2003
    Publication date: October 9, 2003
    Inventors: Daniele Roudil, Laurent Couston, Jacques Delage, Mathieu Brutel
  • Device and method for determination of physical parameters for a two-phase mix by propagation of an acoustic wave in the continuous phase of the two-phase mix
    Patent number: 6560548
    Abstract: A device measures the propagation time for an acoustic wave in a continuous phase of a two-phase mix (28) comprising the continuous phase and a dispersed phase forming droplets (40) in the continuous phase. The device comprises an electro-acoustic transducer (12) capable of emitting acoustic waves (30) and outputting a reception signal of reflected acoustic waves, a signal pulse generator capable of determining a propagation time starting from signals output by the transducer, and an acoustic lens for focusing acoustic waves and the frequency of the acoustic waves being adjusted to cause reflection of the waves on the droplets of the dispersed phase, essentially located within a focusing area.
    Type: Grant
    Filed: January 24, 2001
    Date of Patent: May 6, 2003
    Assignee: Commissariat A l'Energie Atomique
    Inventors: Danièle Roudil, Francis Malzieu, Gilles Despaux, Jacques Attal, Philippe Combette