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1. 发明授权

US5505086A Method and apparatus for measuring length of conduit and for diagnosing inside of conduit 失效
标题翻译：用于测量管道长度和管道内部诊断的方法和装置
公开(公告)号：US5505086A
公开(公告)日：1996-04-09
申请号：US115686
申请日：1993-09-03
申请人： Hiroaki Sano , Kinji Taguchi , Shigeru Tanaka , Tetsuro Yabuta , Takeshi Tsujimura
发明人： Hiroaki Sano , Kinji Taguchi , Shigeru Tanaka , Tetsuro Yabuta , Takeshi Tsujimura
IPC分类号： G01B5/02 , G01N29/04
CPC分类号： G01B5/02 , Y10S33/02
摘要： A method of measuring a length of a conduit comprises the steps of: supplying air into a conduit to insert a filamentary body into the conduit by flow of the air; detecting arrival of a forward end of the filamentary body at an outlet of the conduit; and measuring the length of the conduit from the length of the filamentary body inserted into the conduit. An apparatus for measuring a length of a conduit, comprises an air supply device for supplying air into the conduit; a filamentary body including a wire and a plurality of elastic large-diameter members attached to the wire; and a device for detecting that a forward end of the filamentary body arrives at an outlet end of the conduit, where the length of the conduit is measured from the length of the filamentary body inserted into the conduit.
摘要翻译：一种测量管道长度的方法包括以下步骤：将空气供给到管道中，以通过空气流将丝状体插入管道; 检测丝状体的前端在导管的出口处的到达; 并且从插入导管中的丝状体的长度测量导管的长度。一种用于测量导管长度的装置，包括用于将空气供入管道的空气供应装置; 丝线体，其包括线和附接到所述线的多个弹性大直径构件; 以及用于检测丝状体的前端到达导管的出口端的装置，其中导管的长度是从插入管道中的丝状体的长度来测量的。

2. 发明授权

US5528938A Method and apparatus for measuring length of conduit and for diagnosing inside of conduit 失效
公开(公告)号：US5528938A
公开(公告)日：1996-06-25
申请号：US284207
申请日：1994-08-02
申请人： Hiroaki Sano , Kinji Taguchi , Shigeru Tanaka , Tetsuro Yabuta , Takeshi Tsujimura
发明人： Hiroaki Sano , Kinji Taguchi , Shigeru Tanaka , Tetsuro Yabuta , Takeshi Tsujimura
IPC分类号： G01B5/02 , G01B7/02 , G01B7/26
CPC分类号： G01B5/02 , Y10S33/02
摘要： A method of measuring a length of a conduit comprises the steps of: supplying air into a conduit to insert a filamentary body into the conduit by flow of the air; detecting arrival of a forward end of the filamentary body at an outlet of the conduit; and measuring the length of the conduit from the length of the filamentary body inserted into the conduit. An apparatus for measuring a length of a conduit, comprises an air supply device for supplying air into the conduit; a filamentary body including a wire and a plurality of elastic large-diameter members attached to the wire; and a device for detecting that a forward end of the filamentary body arrives at an outlet end of the conduit, where the length of the conduit is measured from the length of the filamentary body inserted into the conduit.

3. 发明授权

US08718467B2 Method of switching optical path, and apparatus thereof 有权
标题翻译：光路切换方法及其装置
公开(公告)号：US08718467B2
公开(公告)日：2014-05-06
申请号：US13130108
申请日：2009-11-24
申请人： Takeshi Tsujimura , Kuniaki Tanaka , Koichi Yoshida , Kazunori Katayama , Yuji Azuma , Masatoshi Shimizu
发明人： Takeshi Tsujimura , Kuniaki Tanaka , Koichi Yoshida , Kazunori Katayama , Yuji Azuma , Masatoshi Shimizu
IPC分类号： H04B10/08
CPC分类号： H04J14/02 , H04B10/032 , H04J14/002 , H04J14/0221 , H04J14/0294 , H04J14/0295 , H04Q11/0005 , H04Q11/0062 , H04Q2011/0043 , H04Q2011/0081
摘要： Terminals of upstream and downstream sides of an in-service line and a detour line are connected by optical couplers. An optical oscilloscope is connected to one optical coupler, and a chirped pulse light source is connected to the other optical coupler to thereby form dualized lines. The detour line includes an optical line length adjuster for compensating for the phase difference of optical transmission signals that occurs because of the optical line length difference with the in-service line. Pulse light in which an optical frequency is chirped is transmitted from the chirped pulse light source. The pulse light is branched by the second optical coupler, passes through the in-service line and the detour line, is multiplexed again by the first optical coupler, and is measured by the optical oscilloscope. While matching an arrival time of the pulse light, the optical line length is adjusted by the optical line length adjuster so as to minimize the size of upper and lower limits of an interference waveform generated in an upper part of the pulse light waveform or so as to make a frequency of an interference waveform become zero.
摘要翻译：在线和迂回线的上游侧和下游侧的端子通过光耦合器连接。光学示波器连接到一个光耦合器，并且啁啾脉冲光源连接到另一个光耦合器，从而形成二元化线。迂回线包括光线路长度调节器，用于补偿由于与使用中线路的光线路长度差异而发生的光传输信号的相位差。从啁啾脉冲光源发射光频率啁啾的脉冲光。脉冲光由第二光耦合器分支，通过在用线路和迂回线路，由第一光耦合器再次复用，并由光示波器测量。在匹配脉冲光的到达时间的同时，通过光线路长度调节器调整光线路长度，以使脉冲光波形的上部产生的干扰波形的上限和下限的大小最小化，使得干扰波形的频率变为零。

4. 发明申请

US20110236015A1 METHOD OF SWITCHING OPTICAL PATH, AND APPARATUS THEREOF 有权
标题翻译：切换光路的方法及其设备
公开(公告)号：US20110236015A1
公开(公告)日：2011-09-29
申请号：US13130108
申请日：2009-11-24
申请人： Takeshi Tsujimura , Kuniaki Tanaka , Koichi Yoshida , Kazunori Katayama , Yuji Azuma , Masatoshi Shimizu
发明人： Takeshi Tsujimura , Kuniaki Tanaka , Koichi Yoshida , Kazunori Katayama , Yuji Azuma , Masatoshi Shimizu
IPC分类号： H04J14/00 , G02B6/35 , G02B5/122 , H04B10/08
CPC分类号： H04J14/02 , H04B10/032 , H04J14/002 , H04J14/0221 , H04J14/0294 , H04J14/0295 , H04Q11/0005 , H04Q11/0062 , H04Q2011/0043 , H04Q2011/0081
摘要： Terminals of upstream and downstream sides of an in-service line and a detour line are connected by optical couplers. An optical oscilloscope is connected to one optical coupler, and a chirped pulse light source is connected to the other optical coupler to thereby form dualized lines. The detour line includes an optical line length adjuster for compensating for the phase difference of optical transmission signals that occurs because of the optical line length difference with the in-service line. Pulse light in which an optical frequency is chirped is transmitted from the chirped pulse light source. The pulse light is branched by the second optical coupler, passes through the in-service line and the detour line, is multiplexed again by the first optical coupler, and is measured by the optical oscilloscope. While matching an arrival time of the pulse light, the optical line length is adjusted by the optical line length adjuster so as to minimize the size of upper and lower limits of an interference waveform generated in an upper part of the pulse light waveform or so as to make a frequency of an interference waveform become zero.
摘要翻译：在线和迂回线的上游侧和下游侧的端子通过光耦合器连接。光学示波器连接到一个光耦合器，并且啁啾脉冲光源连接到另一个光耦合器，从而形成二元化线。迂回线包括光线路长度调节器，用于补偿由于与使用中线路的光线路长度差异而发生的光传输信号的相位差。从啁啾脉冲光源发射光频率啁啾的脉冲光。脉冲光由第二光耦合器分支，通过在用线路和迂回线路，由第一光耦合器再次复用，并由光示波器测量。在匹配脉冲光的到达时间的同时，通过光线路长度调节器来调整光线路长度，以使在脉冲光波形的上部产生的干扰波形的上限和下限的大小最小化，使得干扰波形的频率变为零。

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