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31. 发明专利

JP2009025188A Temperature compensation method of physical quantity and temperature compensation type optical fiber sensor 有权
标题翻译：物理量和温度补偿型光纤传感器的温度补偿方法
公开(公告)号：JP2009025188A
公开(公告)日：2009-02-05
申请号：JP2007189509
申请日：2007-07-20
申请人： Fujikura Ltd , 株式会社フジクラ
发明人： SAKAMOTO AKIRA , HORIMOTO KEIICHI , NOGUCHI YOSHIKIYO
IPC分类号： G01D5/353
摘要： PROBLEM TO BE SOLVED: To provide a temperature compensation method and a simple temperature compensation type optical fiber sensor capable of compensating temperature precisely in a three-core array system capable of measuring temperature inexpensively and precisely. SOLUTION: In the measurement of physical quantity using a three-core array system optical fiber sensor, a temperature measurement means is provided at or near a measurement section. Based on temperature measured by the temperature measurement means, distance change temperature compensation for compensating distance variations where the distance between the measurement and reflection sections changes due to the temperature, angle change temperature compensation for compensating angle variations where the angle between the measurement and reflection sections changes due to the temperature, and nonlinear temperature compensation for compensating a nonlinear error generated because the relationship between the physical quantity to be measured and the ratio of light intensity measured by each optical fiber for reception is nonlinear are calculated, thus calculating the physical quantity measured after temperature compensation by (physical quantity measured after temperature compensation = basic physical quantity characteristic - distance change temperature compensation - angle change temperature compensation-nonlinear temperature compensation) according to the basic physical quantity characteristics measured at the temperature. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种温度补偿方法和简单的温度补偿型光纤传感器，其能够在能够廉价且精确地测量温度的三芯阵列系统中精确地补偿温度。解决方案：在使用三芯阵列系统光纤传感器的物理量的测量中，在测量部分处或附近设置温度测量装置。基于由温度测量装置测量的温度，用于补偿距离变化的距离变化温度补偿，其中测量和反射部分之间的距离由于温度而变化，用于补偿角度变化的角度变化温度补偿，其中测量和反射部分之间的角度计算由温度引起的变化，以及用于补偿因测量物理量与接收各光纤测量的光强度之比之间的关系而产生的非线性误差的非线性温度补偿是非线性的，从而计算测量的物理量温度补偿后（温度补偿后测量的物理量=基本物理量特性 - 距离变化温度补偿 - 角度变化温度补偿 - 非线性温度补偿）根据基本ph 在温度下测量的温度特性。版权所有（C）2009，JPO＆INPIT

32. 发明专利

JP2008293001A Optical fiber array 审中-公开
标题翻译：光纤阵列
公开(公告)号：JP2008293001A
公开(公告)日：2008-12-04
申请号：JP2008111703
申请日：2008-04-22
申请人： Fujikura Ltd , 株式会社フジクラ
发明人： HORIMOTO KEIICHI , NUKAGA OSAMU , SAKAMOTO AKIRA
IPC分类号： G02B6/24
摘要： PROBLEM TO BE SOLVED: To provide an optical fiber array which is not affected by thermal expansion and contraction, and is not affected by curing shrinkage of an adhesive, and which is free of variation in FFP of projection light by preventing a shift in fixation position, peeling, and breaking of an optical fiber.
SOLUTION: The optical fiber array has an array substrate having a plurality of V-groove processed portions where a plurality of optical fibers having clads removed are arrayed, the optical fibers arrayed in a plurality of V grooves of the V-groove processed portions, an elastic member pressing the optical fibers arrayed at the V-groove processed portions, and a groove processed lid which has a groove formed in the center portion that the elastic member abuts against and has projection portions on both sides thereof, and is characterized in that only the projection portions of the groove processed lid are fixed to the array substrate with the adhesive.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供不受热膨胀和收缩影响的光纤阵列，并且不受粘合剂的固化收缩的影响，并且通过防止偏移而不影响投影光的FFP的变化在光纤的固定位置，剥离和断裂中。解决方案：光纤阵列具有阵列基板，该阵列基板具有多个V槽加工部分，其中排列了去除了层的多个光纤，光纤排列在V沟槽的多个V形槽中部分，按压在V槽加工部分排列的光纤的弹性部件，以及凹槽加工盖，其具有形成在中心部分中的凹槽，弹性部件抵接并在其两侧具有突出部分，并且其特征在于因为槽处理盖的突出部仅用粘合剂固定在阵列基板上。版权所有（C）2009，JPO＆INPIT

33. 发明专利

JP2007309722A Optical fiber sensor 有权
标题翻译：光纤传感器
公开(公告)号：JP2007309722A
公开(公告)日：2007-11-29
申请号：JP2006137424
申请日：2006-05-17
申请人： Fujikura Ltd , 株式会社フジクラ
发明人： SAKAMOTO AKIRA
IPC分类号： G01K11/12 , G02B6/00
摘要： PROBLEM TO BE SOLVED: To provide an optical fiber sensor that is highly reliable, allowing measurement due to light intensity changes, and is easy to manufacture. SOLUTION: In this optical fiber sensor, a sensing part comprises a grated index optical fiber (GI fiber) 1, and a transmission side to the sensing part and a transmission cable to the receiving side comprise a single mode optical fiber (SM fiber) 2. The optical fiber sensor is used for measuring changes in the temperature and a tensile force, by comparison-computing a sensing light intensity, obtained by monitoring the light intensity transmitted through the optical fiber sensor with a reference light intensity obtained by monitoring the light intensity of a light source. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供高度可靠的光纤传感器，由于光强度变化而进行测量，并且易于制造。解决方案：在该光纤传感器中，感测部分包括格栅折射光纤（GI光纤）1，传感器侧到感测部分，传输电缆到接收侧包括单模光纤（SM 纤维）2.光纤传感器用于测量温度变化和张力，通过比较计算通过监测通过光纤传感器传输的光强度获得的感光强度，通过监测获得的参考光强度光源的光强度。版权所有（C）2008，JPO＆INPIT

34. 发明专利

JP2006242608A Optical water gauge 审中-公开
标题翻译：光学水表
公开(公告)号：JP2006242608A
公开(公告)日：2006-09-14
申请号：JP2005055373
申请日：2005-03-01
申请人： Fujikura Ltd , Jfe Advantech Co Ltd , Jfeアドバンテック株式会社 , 株式会社フジクラ
发明人： YAMAMURA YASUSHI , OGATA TAKAHARU , SAKAMOTO AKIRA
IPC分类号： G01F23/14
摘要： PROBLEM TO BE SOLVED: To provide a water gauge excellent in thunder resistance and noise resistance and having a reduced number of wirings in water.
SOLUTION: The water gauge is provided with a water pressure detector housing to be thrown into water and provided with a hollow part in which water flows in through a water inflow opening; a rod lens mounted to the housing in such a way that a lower face may be exposed to the upper surface surrounding the hollow part; a diaphragm for water-tightly sealing with a gap to the lower face of the rod lens to be displaced by the pressure of water flowing in through the water inflow opening; an optical fiber connected to the rod lens; a light source connected to the optical fiber; an optical intensity sensor for detecting both the intensity of reflected light according to the amount of displacement of the diaphragm and the intensity of light emitted from the light source by the optical fiber; and an arithmetic means for computing a power ratio on the basis of the intensity of reflected light detected by the optical intensity sensor and the intensity of emitted light and determining a water level on the basis of both the previously measured power ratio between the intensity of reflected light and the intensity of incident light and a water pressure calibration curve of the rod lens.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种抗雷击性和抗噪声性能优异并且水中布线数量减少的水表。解决方案：水表设置有水压检测器壳体，以将其投入水中并且设置有中空部分，水通过水流入口流入其中; 安装在壳体上的棒状透镜，使得下表面可暴露于围绕中空部分的上表面; 用于通过流入入口的水的压力使杆状透镜的下表面间隙水密密封的隔膜; 连接到棒状透镜的光纤; 连接到光纤的光源; 光强度传感器，用于根据光阑的位移量和由光纤发出的光的强度来检测反射光的强度; 以及算术装置，用于基于由光强度传感器检测的反射光的强度和发射光的强度来计算功率比，并且基于先前测量的反射强度之间的功率比来确定水位光和入射光的强度和棒状透镜的水压校准曲线。版权所有（C）2006，JPO＆NCIPI

35. 发明专利

JP2006084802A Manufacturing method and machine of optical fiber grating 有权
标题翻译：光纤光栅的制造方法与机器
公开(公告)号：JP2006084802A
公开(公告)日：2006-03-30
申请号：JP2004269716
申请日：2004-09-16
申请人： Fujikura Ltd , 株式会社フジクラ
发明人： SAKAMOTO AKIRA , OKUDE SATOSHI
IPC分类号： G02B6/02
摘要： PROBLEM TO BE SOLVED: To provide manufacturing method and machine of an optical fiber grating not requiring vibration-proofing and temperature controlling but capable of simply manufacturing various kinds of apodization grating at a low cost without using an exclusive phase mask. SOLUTION: Covering the optical fiber with thermoplastic ultraviolet ray transparency resin (S110), heating this covering resin to soften (S120), and pressing a phase modulation pattern die to it in a way continuously changing the pressure on the resin in the length direction of the optical fiber (S130), a phase modulation pattern is transferred to the thermoplastic ultraviolet ray transmissive resin. And a laser beam is radiated through the transferred phase modulation pattern to write a grating on the core of the optical fiber (S160). COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供不需要防振和温度控制的光纤光栅的制造方法和机器，但是能够以低成本简单地制造各种变迹光栅，而不使用专用相位掩模。
解决方案：用热塑性紫外线透明树脂覆盖光纤（S110），加热该覆盖树脂软化（S120），并以相互调节模式模具连续改变树脂上的压力光纤的长度方向（S130），将相位调制图案转印到热塑性紫外线透射树脂上。并且激光束通过传送的相位调制图案被辐射以在光纤的核心上写入光栅（S160）。版权所有（C）2006，JPO＆NCIPI

36. 发明专利

JP2006078956A Method and apparatus for manufacturing optical fiber grating 有权
标题翻译：制造光纤光栅的方法和装置
公开(公告)号：JP2006078956A
公开(公告)日：2006-03-23
申请号：JP2004265302
申请日：2004-09-13
申请人： Fujikura Ltd , 株式会社フジクラ
发明人： SAKAMOTO AKIRA , OKUDE SATOSHI
IPC分类号： G02B6/02 , G02B6/00 , G02B6/44
摘要： PROBLEM TO BE SOLVED: To provide an optical fiber grating manufacturing method and apparatus that are simple and sure without requiring vibration measures or the like. SOLUTION: An optical fiber is coated in its circumference with a thermoplastic ultraviolet ray transmitting resin (S110); the thermoplastic ultraviolet ray transmitting resin coating is heated and softened (S120); and a phase modulation pattern mold carved with a phase modulation pattern is pressed against the resin coating (S130) to transfer the phase modulation pattern. Then, a grating is written in the optical fiber by irradiating it with a laser beam through the phase modulation pattern so transferred (S160). COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种在不需要振动等的情况下简单且可靠的光纤光栅制造方法和装置。解决方案：光纤在其周围用热塑性紫外线透射树脂涂覆（S110）; 热塑性紫外线透射树脂被加热软化（S120）。并且将相位调制图案雕刻的相位调制图案模具压在树脂涂层上（S130）以传送相位调制图案。然后，通过用激光束照射经过这样传送的相位调制图案将光栅写入光纤中（S160）。版权所有（C）2006，JPO＆NCIPI

37. 发明专利

JP2005345693A Method and equipment for manufacturing optical waveguide grating, and optical component of optical waveguide grating type 有权
标题翻译：用于制造光波导光栅的方法和设备以及光波导光栅类型的光学部件
公开(公告)号：JP2005345693A
公开(公告)日：2005-12-15
申请号：JP2004164406
申请日：2004-06-02
申请人： Fujikura Ltd , 株式会社フジクラ
发明人： SAKAMOTO AKIRA , OKUDE SATOSHI
IPC分类号： G02B6/122 , G02B5/18 , G02B6/02 , G02B6/10 , G02B6/13 , G02B6/16
摘要： PROBLEM TO BE SOLVED: To manufacture an optical waveguide grating type optical component having a desired period while a low cost and a high mass productivity are secured. SOLUTION: A phase mask 2 is prepared which is manufactured from resin and which has a diffraction grating face 2a formed with a diffraction grating 4 of a prescribed period and an incident face 2b opposing the diffraction grating face 2a. This phase mask 2 is held in a manner that the diffraction grating face 2a is nearly parallel and opposite to an optical waveguide 5. While the temperature of the phase mask 2 is adjusted and maintained roughly at a prescribed temperature, the optical waveguide 5 is irradiated and exposed with ultraviolet rays UV from the incident face 2b side through the phase mask 2 to form a grating in the exposed part of the optical waveguide 5. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：制造具有期望的周期的光波导光栅型光学部件，同时确保低成本和高批量生产率。解决方案：制备由树脂制成并且具有形成有规定周期的衍射光栅4的衍射光栅面2a和与衍射光栅面2a相对的入射面2b的相位掩模2。该相位掩模2以衍射光栅面2a与光波导5几乎平行且相反的方式保持。在将相位掩模2的温度大致调整到规定温度的状态下，照射光波导5 并通过相位掩模2从入射面2b侧的紫外线曝光，在光波导5的露出部分中形成光栅。（C）2006，JPO＆NCIPI

38. 发明专利

JP2005331825A Light guide grating manufacturing apparatus and method 审中-公开
标题翻译：光导制造设备及方法
公开(公告)号：JP2005331825A
公开(公告)日：2005-12-02
申请号：JP2004151718
申请日：2004-05-21
申请人： Fujikura Ltd , 株式会社フジクラ
发明人： HORIMOTO KEIICHI , SAKAMOTO AKIRA , OKUDE SATOSHI
IPC分类号： G02B6/02 , G02B6/10
摘要： PROBLEM TO BE SOLVED: To provide a light guide grating manufacturing apparatus for obtaining optical characteristics with high precision by suppressing the influence of diffraction light of zero order or higher order by a phase mask while maintaining an excellent manufacture efficiency in manufacture of a light guide grating. SOLUTION: A shutoff filter 22 is inserted in parallel between the phase mask 12 and a coating resin cut 23b. The shutoff filter 22 is a filter transmitting only an incident angle to ±1 order light. As the result, in an interference region generated by diffraction light emitted from the phase mask 12, only an interference region E1 is formed due to ±1 order light, and the interference region due to the other high order light does not generates. Thereby, a cyclic refractive index distribution is obtained in the coating resin cut 23b by only action of the interference region E1 due to ±1 order light by suppressing the influence of the interference region due to zero order light or high order light. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决的问题：提供一种导光光栅制造装置，其通过利用相位掩模抑制零级以上的衍射光的影响，同时在制造中保持优异的制造效率，高精度地获得光学特性导光光栅。解决方案：在相位掩模12和涂层树脂切口23b之间平行地插入截止滤波器22。截止滤波器22是仅向±1阶光进行入射角的滤波器。结果，在从相位掩模12发射的衍射光产生的干涉区域中，仅由±1级光形成干涉区域E1，并且不会产生由于其它高阶光引起的干涉区域。因此，通过抑制由于零级光或高阶光引起的干涉区域的影响，仅通过±1阶光的干涉区域E1的作用，在涂层树脂切割部23b中获得循环折射率分布。版权所有（C）2006，JPO＆NCIPI

39. 发明专利

JP2005055508A Method and device for manufacturing grating type optical components, and optical components produced using the method and device 审中-公开
标题翻译：用于制造光栅类型光学部件的方法和装置以及使用方法和装置生产的光学部件
公开(公告)号：JP2005055508A
公开(公告)日：2005-03-03
申请号：JP2003206061
申请日：2003-08-05
申请人： Fujikura Ltd , 株式会社フジクラ
发明人： SAKAMOTO AKIRA , OKUDE SATOSHI
IPC分类号： G02B5/18 , G02B6/02 , G02B6/10 , G02B6/16
CPC分类号： G02B6/02138
摘要： PROBLEM TO BE SOLVED: To provide a method and device for manufacturing grating type optical components capable of manufacturing various kinds of FBG, and to provide optical components manufactured by using the method and device. SOLUTION: At least one of hydrogen and heavy hydrogen is made to diffuse into an optical fiber 27, and the refractive index of the optical fiber 27 is made to vary by irradiating the optical fiber 27 with incoherent ultraviolet rays 131. COPYRIGHT: (C)2005,JPO&NCIPI

40. 发明专利

JP2005017334A Method and apparatus for manufacturing grating type optical component and optical component produced by using apparatus for manufacturing grating type optical component 审中-公开
标题翻译：用于制造光刻类型光学元件的光学元件和光学元件的制造方法和装置
公开(公告)号：JP2005017334A
公开(公告)日：2005-01-20
申请号：JP2003177896
申请日：2003-06-23
申请人： Fujikura Ltd , 株式会社フジクラ
发明人： SAKAMOTO AKIRA , OKUDE SATOSHI
IPC分类号： G02B6/02 , C03C23/00 , G02B6/10 , G02B6/16
摘要： PROBLEM TO BE SOLVED: To suppress the effect of Fresnel diffraction and to increase sensitivity to ultraviolet light, even if an intensity modulation mask having a small slit width is used when a sampled grating is formed in a photosensitive core in an optical waveguide. SOLUTION: Each optical fiber 27 with a photosensitive core is put in a high pressure vessel 111, hydrogen is diffused in the optical fiber 27 in an atmosphere of high pressure hydrogen 113, the optical fiber 27 is irradiated with monochromatic incoherent light 131 of a UV lamp through slits 177 in an intensity modulation mask, the hydrogen 153 is released from the optical fiber in a heated oven 151, and the optical fiber is irradiated with coherent UV laser light 171. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题为了抑制菲涅尔衍射的影响并增加对紫外线的敏感性，即使在光波导中的感光芯中形成采样光栅时，即使使用狭缝宽度窄的强度调制掩模。解决方案：将具有感光芯的每个光纤27放入高压容器111中，在高压氢气113中将氢气扩散到光纤27中，光纤27用单色非相干光131 的UV灯通过强度调制掩模中的狭缝177，在加热的炉151中从光纤中释放氢153，并且用相干的UV激光171照射光纤。版权所有（C）2005 ，JPO＆NCIPI

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