公开(公告)号：GR3031366T3

公开(公告)日：2000-01-31

申请号：GR990402460

申请日：1999-09-29

Applicant: UNITED TECHNOLOGIES CORP

Inventor： DUNPHY JAMES R ,  RUKUS ROBERT M ,  HA JONG-MIN

IPC: G02B6/00 ,  G02B6/36 ,  G02B6/38 ,  G02B6/44

Abstract: An optical fiber entry strain relief interface includes a composite structure (lay-up) 10 having an optical fiber 20 embedded therein. The optical fiber 20 enters (or exits) the lay-up 10 at at least one point 24 and passes through transition layers 47 comprising an adhesive film 42, a thin rubber sealing layer 44, and a thick rubber strain relief layer 46, and through a polymer plug 48 located above the layer 46. The lay-up is consolidated by heating the lay-up over a temperature profile and applying pressure through mostly closed compression molding tools 30,32. The adhesive film 42 bonds the adjacent layer 44 to the upper surface of the lay-up 10, the sealing layer 44 becomes soft enough to seal around the fiber 20 at a temperature lower than the temperature at which the resin 16 exhibits a low enough viscosity to leak out of the lay-up 10, thereby preventing the resin from leaking out of the lay-up 10 during lay-up consolidation, the strain relief layer 46 provides a rubber strain relief for the optical fiber 20, and the plug 48 supports the layers 47 during consolidation.

公开(公告)号：DK0795117T3

公开(公告)日：1999-09-13

申请号：DK95942454

申请日：1995-11-21

Applicant: UNITED TECHNOLOGIES CORP

Inventor： DUNPHY JAMES R ,  RYAN JAMES J

IPC: G01B11/16 ,  B29C35/02 ,  B29C70/54 ,  C03C25/10 ,  G01D5/353 ,  G01M11/08 ,  G01N11/00 ,  G01N33/44 ,  G01D5/26 ,  C03C25/00 ,  G01L1/00 ,  G02B6/245

Abstract: An optical corrosion sensor employs an optical fiber Bragg grating 20 embedded within an optical fiber 18 . The grating 20 has a coating 40 made of a material, such as aluminum, which corrodes or can otherwise be removed. The coating 40 exerts forces 46 radially inward around and along the grating 20 so as to cause the wavelength bandwidth of the grating reflectivity profile to become broader and to be shifted relative to its uncoated condition. Also, the forces on the grating 20 are reduced when the coating corrodes, thereby causing the wavelength bandwidth and shift of the reflectivity profile of the grating to narrow and to return to its uncoated condition.

公开(公告)号：BR8307322A

公开(公告)日：1984-04-17

申请号：BR8307322

申请日：1983-05-10

Applicant: UNITED TECHNOLOGIES CORP

Inventor： MELTZ GERALD ,  NEWMAN LEON A ,  DUNPHY JAMES R ,  FOSTER MARTIN C

IPC: G01N21/49