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1. 发明专利

JP2004205368A Multipoint strain measuring system using ofdr method 有权
公开(公告)号：JP2004205368A
公开(公告)日：2004-07-22
申请号：JP2002375302
申请日：2002-12-25
申请人： Data Science:Kk , National Aerospace Laboratory Of Japan , Natl Space Development Agency Of Japan , 宇宙開発事業団 , 有限会社データサイエンス , 独立行政法人航空宇宙技術研究所
发明人： IGAWA HIROTAKA , KASAI TOKIO , YAMAGUCHI ISAO , MURAYAMA HIDEAKI , TAKAGI SEIZO
IPC分类号： G01B11/16 , G01D5/26 , G01D5/353
CPC分类号： G01M11/3172
摘要： PROBLEM TO BE SOLVED: To upgrade a real-time property and a speed of response of a measurement by improving a data analyzing method in a multipoint strain measuring system using an OFDR (optical frequency domain reflectometry) method in which a plurality of FBGs are arranged in an optical fiber.
SOLUTION: In the multipoint strain measuring system, the plurality of fiber Bragg gratings (FBGs) which make up a periodic structure of refractive index inside the core of the optical fiber, are arranged in one optical fiber, and the measuring method (OFDR) which uses periodic changes in interferential intensity of light, is conducted. The system also has such a function that signals from the FBG on a specific position are quickly separated by using a band-pass filter with a preset bandpass range which filters out detected light signals.
COPYRIGHT: (C)2004,JPO&NCIPI

2. 发明专利

JP2004146898A Extendable mesh antenna 审中-公开
标题翻译：可扩展的天线
公开(公告)号：JP2004146898A
公开(公告)日：2004-05-20
申请号：JP2002306639
申请日：2002-10-22
申请人： National Aerospace Laboratory Of Japan , Nec Toshiba Space Systems Ltd , Nec東芝スペースシステム株式会社 , 独立行政法人航空宇宙技術研究所
发明人： IIKURA SHOICHI , NAGAOKA NOBUAKI , YAMAGUCHI ISAO , KASAI TOKIO , IGAWA HIROTAKA , NAKAJIMA ATSUSHI
IPC分类号： B64G1/22 , B64G1/66 , H01Q1/08 , H01Q1/28 , H01Q15/20
摘要： PROBLEM TO BE SOLVED: To provide an extendable mesh antenna which has light weight, the small number of components and high reliability for extending.
SOLUTION: The mesh antenna 29 comprises at least two sets of approximately parallelepiped link mechanisms each composed of a mirror surface transversal member 10, a back transversal member 11, a central longitudinal member 12 and a peripheral longitudinal member 13, and a truss composed of a pair of skew members 14a, 14b flexible to spread and house the link mechanisms, and a fingertip operation umbrella mechanism having a compression coil spring 19 for spreading the skew members. The coil spring is mounted between an upper and lower slide links 17, 18 of the umbrella mechanism. A cable 33 is fixed at the top end to the upper slide link and the cable feed rate from a drum 32 is controlled to regulate the elevation of the upper slide link. A rotary dumper 60 fixed to the drum controls the spreading speed of the truss due to the expanding force of the coil spring.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种具有重量轻，部件数量少，扩展性高的可伸缩网格天线。网格天线29包括至少两组近似平行六面体的连杆机构，每组由镜面横向构件10，后横向构件11，中央纵向构件12和周边纵向构件13以及桁架构成由一对挠性构件14a，14b构成，其能够弹性地扩展和容纳连杆机构;以及指尖操作伞式机构，其具有用于扩展歪斜构件的压缩螺旋弹簧19。螺旋弹簧安装在伞形机构的上滑动连杆17和下滑动连杆18之间。电缆33在顶端固定到上滑动连杆，并且来自滚筒32的电缆进给速度被控制以调节上滑动连杆的高度。固定在滚筒上的旋转自卸车60由于螺旋弹簧的膨胀力而控制桁架的铺展速度。版权所有（C）2004，JPO

3. 发明专利

JP2003302221A Gps wave height, current direction and current speed measuring device and gps wave height, current direction and current speed measuring system 有权
标题翻译： GPS波高，电流方向和电流速度测量装置和GPS波高，电流方向和电流速度测量系统
公开(公告)号：JP2003302221A
公开(公告)日：2003-10-24
申请号：JP2002103593
申请日：2002-04-05
申请人： National Aerospace Laboratory Of Japan , 独立行政法人航空宇宙技術研究所
发明人： HARIKAE MASATOSHI , YAMAGUCHI ISAO , KASAI TOKIO
IPC分类号： G01C13/00 , G01S1/00 , G01S19/14 , G01S19/19 , G01S5/14
CPC分类号： G01S19/14 , G01C13/002 , G01S19/35 , G01S19/39
摘要： PROBLEM TO BE SOLVED: To provide a GPS wave height, current direction and current speed measuring device and a system using it, enabling correct measurement for wave height (height of wave) and current direction and speed (current of tide) at an arbitrary spot on the sea or a lake with GPS. SOLUTION: The GPS receiver 2 of GPS wave height, current direction and current speed measuring device 1 processes a GPS signal received by a GPS antenna 3 to measure the three-dimensional position of the antenna 3. The three-dimensional position data is recorded in a data recorder 4 connected to the GPS receiver 2. A floating body 5 is loaded with the respective devices 2 to 4, and floats on the sea to be moved according to the current of wave and tide on the spot. A data processor 6 is loaded with software 7 for performing high-pass filtering and smoothing and outputs data on the wave height and current direction and current speed while eliminating an error from the three-dimensional data recorded by the data recorder 4. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：为了提供GPS波高，电流方向和当前速度测量装置及其使用的系统，能够正确地测量波高（波高）和电流方向和速度（潮流）在海上或湖泊上有任意一个GPS。
解决方案：GPS波高，电流方向和当前速度测量装置1的GPS接收机2处理由GPS天线3接收的GPS信号，以测量天线3的三维位置。三维位置数据被记录在连接到GPS接收机2的数据记录器4中。浮体5装载有相应的装置2至4，并且根据当前的波浪和潮流的潮流漂浮在海上移动。数据处理器6装有用于执行高通滤波和平滑的软件7，并且在从数据记录器4记录的三维数据中消除误差的同时，输出关于波高和当前方向和当前速度的数据。版权所有（C）2004，JPO

4. 发明专利

JP2004191329A Gps type wave direction measuring method 有权
公开(公告)号：JP2004191329A
公开(公告)日：2004-07-08
申请号：JP2002362806
申请日：2002-12-13
申请人： National Aerospace Laboratory Of Japan , 独立行政法人航空宇宙技術研究所
发明人： KASAI TOKIO , YAMAGUCHI ISAO , IGAWA HIROTAKA , HARIKAE MASATOSHI
IPC分类号： G01C13/00 , G01S19/14 , G01S5/14
摘要： PROBLEM TO BE SOLVED: To provide a GPS type wave direction measuring method which has an algorithm capable of performing automatic simple and stable wave direction analysis, by making it possible to perform wave direction analysis of a wave based on GPS positioning data.
SOLUTION: On the basis of the transverse two-dimensional displacement of a floating body such as a buoy robot floating on the wave obtained by GPS positioning, this GPS type wave direction measuring method presumes the transverse speed of the wave at approximately maximum peak points of the wave height by numerical differentiation, at a plurality of points near the peak point existing in a period of the wave specified by a zero-up crossing method. The wave direction of the wave in that period can be found from the transverse speed. The instrumentation of the direction of the sea wave does not involve artificial judgment, and objective and precise instrumentation can be performed.
COPYRIGHT: (C)2004,JPO&NCIPI

5. 发明专利

JP2005147900A Continuous strain distribution measuring instrument for ofdr system 有权
标题翻译：连续分布测量仪器用于OFDR系统
公开(公告)号：JP2005147900A
公开(公告)日：2005-06-09
申请号：JP2003387041
申请日：2003-11-17
申请人： Data Science:Kk , Japan Aerospace Exploration Agency , 有限会社データサイエンス , 独立行政法人宇宙航空研究開発機構
发明人： IGAWA HIROTAKA , KASAI TOKIO , YAMAGUCHI ISAO , MURAYAMA HIDEAKI , TAKAGI SEIZO
IPC分类号： G01K11/12 , G01B11/16 , G01D5/26 , G01D5/353 , G01D21/02
CPC分类号： G01M11/3172
摘要： PROBLEM TO BE SOLVED: To provide a means for measuring a strain in a specified area as continuous information, and an analytical method capable of processing data in a plurality of FBG stain measuring parts at the same time, and capable of obtaining the continuous strain information in the specified area, in optical fiber strain measurement by an OFDR system arranged with a plurality of FBGs in one optical fiber, so as to solve a problem to be solved in the present invention. SOLUTION: In the data analytical method in this strain measuring instrument of the OFDR system in the present invention, a wavelength of a laser beam source is varied, reflection light intensity from the FBGs is detected, data in every section of a micro wave are extracted in a plot with the wavelengths on an abscissa and the reflection light intensities on an ordinate to conduct discrete Fourier transformation in every time corresponding to the wavelength of the light source, and frequency analysis depending on the time is carried out to obtain a spectrogram expressing a position of the FBGs. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于测量指定区域中的应变作为连续信息的装置，以及能够同时处理多个FBG染色测量部件中的数据的分析方法，并且能够获得在特定区域中的连续应变信息，在通过在一根光纤中布置有多个FBG的OFDR系统进行的光纤应变测量中，以解决本发明要解决的问题。解决方案：在本发明的OFDR系统的应变测量仪器的数据分析方法中，激光束源的波长变化，检测到来自FBG的反射光强度，微波的每个部分的数据在具有横坐标的波长和纵坐标上的反射光强度的图中提取波在与光源的波长相对应的每一次中进行离散傅里叶变换，并且执行根据时间的频率分析，以获得光谱图表示FBG的位置。版权所有（C）2005，JPO＆NCIPI

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