公开(公告)号：JPH10185585A

公开(公告)日：1998-07-14

申请号：JP31826297

申请日：1997-11-19

Applicant: LITTON SYSTEMS INC

Inventor： CORDOVA AMADO ,  HOOVER ROBERT J ,  MCLEAN THOMAS ,  PATTERSON RALPH A ,  RAHN JOHN P

IPC: G01C19/72 ,  G02B6/44

Abstract: PROBLEM TO BE SOLVED: To reduce gyro errors by releasing the stress between windings, by providing a means which reduces the thermal stress between a jacket and a burying material. SOLUTION: A surface 26 of the external jacket of the sensor coil composed of an optical fiber 28 is insulated from a surrounding burying material 30 by lubricant layers 32 and 34, which surround the wound layer of a fiber 29. Before starting the winding process of the sensor coil, the lubricant layer applying process, and the burying process of the sensor coil, the burying material 30 is applied to the surface of a supporting mandrel. After the material 30 is applied, the lubricant layer 34 is applied to the surface of the burying material 30 with a brush or spray and the layer of the fiber 28 is wound. After the fiber 28 is wound, the lubricant layer 32 is applied to the surface of the fiber 28 with a spray or brush, and the remaining layer of the burying material 36 is applied. Since the lubricant layers 34 and 32 are respectively provided immediately below and above the fiber 28, the fiber 28 is isolated from the layers 30 and 36 of the burying material 30 by the lubricants.