-
1.发明申请公开(公告)号：US20120038909A1
公开(公告)日：2012-02-16
申请号：US13197286
申请日：2011-08-03
申请人： Tatsuyuki Maki , Osamu Yamashita
发明人： Tatsuyuki Maki , Osamu Yamashita
IPC分类号： G01N21/00
CPC分类号： G02B6/02357 , G01M11/3109 , G02B6/02 , G02B6/02009 , G02B6/02023 , G02B6/02333 , G02B6/0288
摘要： [Task] To enable a test of an optical transmission path using an MMF with a simple configuration in an optical pulse test apparatus which is used for an SFM for long-distance transmission.[Means for Resolution] An optical coupler 22, a light source 21, a connector 23, and an optical receiver 25 are respectively connected to each other by SMF optical paths Fa to Fc. A signal processing unit 30 includes fiber type designation means 31a for designating the type of an optical fiber of a test-target optical transmission path 1 as either an SMF or an MMF, SMF parameter designation means 31b for, when an SMF is designated, designating test parameters including the refractive index of the SMF, and MMF parameter designation means 31c for, when an MMF is designated, designating test parameters including the refractive index of the MMF. The transmission characteristic of the optical transmission path 1 using the designated optical fiber with respect to distance is obtained on the basis of the parameters including the refractive index of the designated optical fiber and intensity data of return light Pr and displayed on a display unit 50.
摘要翻译： [任务]使用用于长距离传输的SFM的光脉冲测试装置中的具有简单配置的MMF的光传输路径的测试。 [分辨装置]光耦合器22，光源21，连接器23和光接收器25分别通过SMF光路Fa至Fc彼此连接。 信号处理单元30包括用于指定作为SMF或MMF的测试对象光传输路径1的光纤的类型的光纤类型指定装置31a，当指定SMF时，SMF参数指定装置31b指定 包括SMF的折射率的测试参数和MMF参数指定装置31c，当指定MMF时，指定包括MMF的折射率的测试参数。 基于指定光纤的折射率和返回光Pr的强度数据的参数，显示在显示单元50上，获得使用指定的光纤相对于距离的光传输路径1的传输特性。
-
公开(公告)号：USD573906S1
公开(公告)日：2008-07-29
申请号：US29287775
申请日：2007-09-18
-
公开(公告)号：US08525094B2
公开(公告)日：2013-09-03
申请号：US13286644
申请日：2011-11-01
申请人： Tatsuyuki Maki
发明人： Tatsuyuki Maki
CPC分类号： H03F3/087
摘要： There are provided a photodiode 11, an inverting amplifier 12 which includes an operational amplifier 12a and a first resistor 12b, a second resistor 21 which has a smaller resistance value than the first resistor 12b and which is inserted between the positive side of a power supply and the photodiode 11, a differential amplifier 22 which outputs a voltage across both ends of the second resistor 21, and a diode 23 which is connected between a ground and a connection point between the photodiode 11 and an inverting input terminal of the operational amplifier 12a and which changes to a non-conductive state when the inverting amplifier 12 is not saturated and changes to a conductive state when the inverting amplifier 12 is saturated so that the output current of the photodiode 11 is bypassed.
摘要翻译： 设置有光电二极管11，反相放大器12，其包括运算放大器12a和第一电阻器12b，第二电阻器21的电阻值比第一电阻器12b小，并且插入电源的正极侧 光电二极管11，输出第二电阻21的两端的电压的差分放大器22和连接在地与光电二极管11与运算放大器12a的反相输入端之间的连接点的二极管23 并且当反相放大器12不饱和时变为非导通状态，并且当反相放大器12饱和时变为导通状态，使得旁路光电二极管11的输出电流。
-
公开(公告)号：US20120273659A1
公开(公告)日：2012-11-01
申请号：US13286644
申请日：2011-11-01
申请人： Tatsuyuki Maki
发明人： Tatsuyuki Maki
IPC分类号： H03F3/08
CPC分类号： H03F3/087
摘要： There are provided a photodiode 11, an inverting amplifier 12 which includes an operational amplifier 12a and a first resistor 12b, a second resistor 21 which has a smaller resistance value than the first resistor 12b and which is inserted between the positive side of a power supply and the photodiode 11, a differential amplifier 22 which outputs a voltage across both ends of the second resistor 21, and a diode 23 which is connected between a ground and a connection point between the photodiode 11 and an inverting input terminal of the operational amplifier 12a and which changes to a non-conductive state when the inverting amplifier 12 is not saturated and changes to a conductive state when the inverting amplifier 12 is saturated so that the output current of the photodiode 11 is bypassed.
摘要翻译： 设置有光电二极管11，反相放大器12，其包括运算放大器12a和第一电阻器12b，第二电阻器21的电阻值比第一电阻器12b小，并且插入电源的正极侧 光电二极管11，输出第二电阻21的两端的电压的差分放大器22和连接在地与光电二极管11与运算放大器12a的反相输入端之间的连接点的二极管23 并且当反相放大器12不饱和时变为非导通状态，并且当反相放大器12饱和时变为导通状态，使得旁路光电二极管11的输出电流。
-
5.发明授权公开(公告)号：US08781264B2
公开(公告)日：2014-07-15
申请号：US13197286
申请日：2011-08-03
申请人： Tatsuyuki Maki , Osamu Yamashita
发明人： Tatsuyuki Maki , Osamu Yamashita
CPC分类号： G02B6/02357 , G01M11/3109 , G02B6/02 , G02B6/02009 , G02B6/02023 , G02B6/02333 , G02B6/0288
摘要： [Task] To enable a test of an optical transmission path using an MMF with a simple configuration in an optical pulse test apparatus which is used for an SFM for long-distance transmission.[Means for Resolution] An optical coupler 22, a light source 21, a connector 23, and an optical receiver 25 are respectively connected to each other by SMF optical paths Fa to Fc. A signal processing unit 30 includes fiber type designation means 31a for designating the type of an optical fiber of a test-target optical transmission path 1 as either an SMF or an MMF, SMF parameter designation means 31b for, when an SMF is designated, designating test parameters including the refractive index of the SMF, and MMF parameter designation means 31c for, when an MMF is designated, designating test parameters including the refractive index of the MMF. The transmission characteristic of the optical transmission path 1 using the designated optical fiber with respect to distance is obtained on the basis of the parameters including the refractive index of the designated optical fiber and intensity data of return light Pr and displayed on a display unit 50.
摘要翻译： [任务]使用用于长距离传输的SFM的光脉冲测试装置中的具有简单配置的MMF的光传输路径的测试。 [分辨装置]光耦合器22，光源21，连接器23和光接收器25分别通过SMF光路Fa至Fc彼此连接。 信号处理单元30包括用于指定作为SMF或MMF的测试对象光传输路径1的光纤的类型的光纤类型指定装置31a，当指定SMF时，SMF参数指定装置31b指定 包括SMF的折射率的测试参数和MMF参数指定装置31c，当指定MMF时，指定包括MMF的折射率的测试参数。 基于指定光纤的折射率和返回光Pr的强度数据的参数，显示在显示单元50上，获得使用指定的光纤相对于距离的光传输路径1的传输特性。
-
-
-
-
搜索结果
5 条记录 (耗时 0.01 秒)
