专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5113277A Fiber optic distributed temperature sensor system 失效
标题翻译：光纤分布式温度传感器系统
公开(公告)号：US5113277A
公开(公告)日：1992-05-12
申请号：US542610
申请日：1990-06-22
申请人： Yasuo Ozawa , Nobuo Ando , Satoshi Yamamoto , Toshio Fukahori , Hiroyuki Kunugiyama , Kouichi Sugiyama , Teruaki Tsutsui , Keiichi Hashiba , Shigehiro Endoh , Hiroshi Kawakami , Akira Tokushima , Kaoru Yamazaki
发明人： Yasuo Ozawa , Nobuo Ando , Satoshi Yamamoto , Toshio Fukahori , Hiroyuki Kunugiyama , Kouichi Sugiyama , Teruaki Tsutsui , Keiichi Hashiba , Shigehiro Endoh , Hiroshi Kawakami , Akira Tokushima , Kaoru Yamazaki
IPC分类号： G01K11/32 , G02B6/24 , G02B6/34
CPC分类号： G02B6/2938 , G01K11/32 , G02B6/243 , G02B6/29362
摘要： A fiber optic distributed temperature sensor system outputs a temperature distribution along the longitudinal direction of a sensor optical fiber by measuring the temperature dependency of Raman scattered light intensity produced in an optical fiber by use of the OTDR technique. The system is characterized in that a light output from a light source is input to the sensor (optical fiber) via an optical wavelength division demultiplexer, that among the reflected light of back scattered light returning from the sensor optical fiber, light of a particular wavelength range is reflected or transmitted by at least one optical filter of the optical wavelength division demultiplexer to separate the light of the particular wavelength range and that signal of the light of the particular wavelength range is guided to a detector of an optical measuring system.
摘要翻译：光纤分布式温度传感器系统通过使用OTDR技术测量在光纤中产生的拉曼散射光强度的温度依赖性，输出沿传感器光纤纵向的温度分布。该系统的特征在于，从光源输出的光经由光波分复用器输入到传感器（光纤），在从传感器光纤返回的反射散射光的反射光中，特定波长的光范围由光波分复用器的至少一个滤光器反射或透射以分离特定波长范围的光，并且将特定波长范围的光的信号引导到光学测量系统的检测器。

2. 发明授权

US4872737A Multi-port fiberoptic rotary joint 失效
标题翻译：多端口光纤旋转接头
公开(公告)号：US4872737A
公开(公告)日：1989-10-10
申请号：US241536
申请日：1988-09-07
申请人： Toshio Fukahori , Hideyuki Takashima , Hitoshi Morinaga
发明人： Toshio Fukahori , Hideyuki Takashima , Hitoshi Morinaga
IPC分类号： G02B6/36
CPC分类号： G02B6/3604
摘要： A multi-port fiberoptic rotary joint comprising a trapezoid prism provided between a rotative member and a fixed member of the rotary joint so as to be rotatable relative to the rotative member and coaxial with said rotative member, a speed change gear mechanism for transmitting the rotation of the rotative member to the trapezoid prism so as to rotate the trapezoid prism at an angular velocity half the angular velocity of the rotative member, rhomboid prisms provided on the entrance side of the trapezoid prism so as to optically guide the light coming from a region outside an aperture of the trapezoid prism to the trapezoid prism as the light parallel to the axis of the trapezoid prism within the aperture thereof, and the rhomboid prisms provided on the exit side of the trapezoid prism so as to optically guide the light emanating from the trapezoid prism to a region outside the aperture of the trapezoid prism, a plurality of pairs of convergent lenses respectively provided to the rotative member and the fixed member, the convergent lenses of each pair optically facing each other via the rhomboid prisms, the trapezoid prism and the rhomboid prisms, and entrance and exit side optical fibers respectively connected to the entrance and exit surface side convergent lenses.
摘要翻译：一种多端口光纤旋转接头，包括梯形棱镜，其设置在旋转构件和旋转接头的固定构件之间，以能够相对于旋转构件旋转并与所述旋转构件同轴;变速齿轮机构，用于传递旋转以梯形棱镜旋转梯形棱镜，以梯形棱镜的入射侧设置的旋转构件的角速度的一半角速度旋转梯形棱镜，以光学地引导来自区域的光在与梯形棱镜的轴的平面内的梯形梯形棱镜的锥形外侧的梯形棱镜的外侧，以及设置在梯形棱镜的出射侧的菱形棱镜，以便将来自梯形棱镜到梯形棱镜的孔外侧的区域，分别设置在旋转体上的多对会聚透镜每个对的会聚透镜通过菱形棱镜，梯形棱镜和菱形棱镜彼此光学相对，以及分别连接到入射和出射表面侧会聚透镜的入射侧和出射侧光纤。

3. 发明授权

US4848867A Rotary joint for polarization plane maintaining optical fibers 失效
标题翻译：用于偏振平面保持光纤的旋转接头
公开(公告)号：US4848867A
公开(公告)日：1989-07-18
申请号：US247784
申请日：1988-09-22
申请人： Hiroshi Kajioka , Toshio Fukahori , Noribumi Shiina , Hitoshi Morinaga
发明人： Hiroshi Kajioka , Toshio Fukahori , Noribumi Shiina , Hitoshi Morinaga
IPC分类号： G02B6/26 , G02B6/32 , G02B6/36 , G02B6/38
CPC分类号： G02B6/3812 , G02B6/32 , G02B6/3604
摘要： A rotary joint for polarization plane maintaining optical fibers which can couple two polarization plane maintaining optical fibers to each other while maintaining the polarization plane maintaining property. The rotary joint comprises a rotary member, a fixed member, two optical fiber collimators and a 1/2 wavelength plate for coupling a polarization plane maintaining optical fiber connected to the rotary member with another polarization plane maintaining optical fiber connected to the fixed member, and gears for rotating the 1/2 wavelength plate at a speed equal to one half the rotational speed of the polarization plane maintaining optical fiber on the rotary member side.
摘要翻译：一种用于维持偏振平面的光纤的旋转接头，其可以将维持光纤的两个偏振面彼此耦合，同时保持偏振面的维持性。旋转接头包括旋转构件，固定构件，两个光纤准直器和用于将维持连接到旋转构件的维持光纤的偏振面保持连接到固定构件的另一偏振面的1/2波长板，以及用于以等于将旋转构件侧保持光纤的偏振面的旋转速度的一半的速度旋转1/2波片的齿轮。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式