Invention Grant
- Patent Title: Method for contactless measurement of the density of a porous material, using a measurement of the refractive index of the material by optical coherence tomography
- Patent Title (中): 通过光学相干断层扫描测量材料的折射率来测量多孔材料的密度的方法
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Application No.: US13057153Application Date: 2009-08-03
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Publication No.: US08488112B2Publication Date: 2013-07-16
- Inventor: Laurent Jeannot , Florent Sandras
- Applicant: Laurent Jeannot , Florent Sandras
- Applicant Address: FR Paris
- Assignee: Commissariat a l'Energie Atomique et aux Energies Alternatives
- Current Assignee: Commissariat a l'Energie Atomique et aux Energies Alternatives
- Current Assignee Address: FR Paris
- Agency: Nixon Peabody LLP
- Priority: FR0855426 20080805
- International Application: PCT/EP2009/060021 WO 20090803
- International Announcement: WO2010/015594 WO 20100211
- Main IPC: G01N21/00
- IPC: G01N21/00 ; G01N21/41 ; G01N21/43
Abstract:
A method for contactless measurement of the density of a porous material, using a measurement of the refractive index of the material by optical coherence tomography.In the optical coherence tomography technique, the optical path corresponding to the crossing of an object made of the material by a light beam used in the technique, is determined, the thickness of the object is determined, the refractive index of the material is determined from the optical path and from the thickness, and the density of the material is determined from the refractive index.
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