Patents Assigned to Invivosense ASA
  • OPTICAL SENSING OF MEASURANDS
    Publication number: 20100007892
    Abstract: A dome-shaped chemical sensing probe comprises an optical fiber or may be mounted on an optical fiber. The probe has a chemically sensitive measuring material which exhibits a change in volume and/or a change in refractive index in the presence of a given chemical. The change in volume and/or refractive index gives a change in an optical path length through the probe which can be measured interferometrically.
    Type: Application
    Filed: September 15, 2009
    Publication date: January 14, 2010
    Applicant: Invivosense ASA
    Inventors: Dag R. Hjelme, Arne Berg, Reinold Ellingsen, Berit Falch, Astrid Bjorkoy, Dan Ostling
  • Optical sensing of measurands
    Patent number: 7602498
    Abstract: A dome-shaped chemical sensing probe comprises an optical fiber or may be mounted on an optical fiber. The probe has a chemically sensitive measuring material which exhibits a change in volume and/or a change in refractive index in the presence of a given chemical. The change in volume and/or refractive index gives a change in an optical path length through the probe which can be measured interferometrically.
    Type: Grant
    Filed: March 14, 2006
    Date of Patent: October 13, 2009
    Assignee: Invivosense ASA
    Inventors: Dag R. Hjelme, Arne Berg, Reinold Ellingsen, Berit Falch, Astrid Bjørkøy, Dan Østling
  • Optical sensing of measurands
    Patent number: 7440110
    Abstract: A chemical sensing probe comprises an optical fiber or may be mounted on an optical fiber. The probe has a chemically sensitive measuring material which exhibits a change in volume and/or a change in refractive index in the presence of a given chemical. The change in volume and/or refractive index gives a change in an optical path length through the probe which can be measured interferometrically.
    Type: Grant
    Filed: October 18, 2002
    Date of Patent: October 21, 2008
    Assignee: Invivosense ASA
    Inventors: Dag R. Hjelme, Arne Berg, Reinold Ellingsen, Berit Falch, Astrid Bjørkøy, Dan Østling