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1. 发明授权

US07087887B1 Optical multiphase flow sensor 有权
标题翻译：光学多相流量传感器
公开(公告)号：US07087887B1
公开(公告)日：2006-08-08
申请号：US10697673
申请日：2003-10-29
申请人： Bo Pi , Shulai Zhao , Zhihao Chen
发明人： Bo Pi , Shulai Zhao , Zhihao Chen
IPC分类号： G02B6/26
CPC分类号： G02B6/2826
摘要： Waveguide sensors having a side-polished coupling port at the waveguide cladding to sense a material based on material-specific optical attenuation by evanescent coupling at the coupling port.
摘要翻译：波导传感器在波导包层处具有侧面抛光的耦合端口，以基于耦合端口处的衰减耦合的材料特定光衰减来感测材料。

2. 发明授权

US06895132B2 Multiplexable fiber-optic strain sensor system with temperature compensation capability 失效
标题翻译：具有温度补偿功能的多路复用光纤应变传感器系统
公开(公告)号：US06895132B2
公开(公告)日：2005-05-17
申请号：US10422145
申请日：2003-04-24
申请人： Behzad Moslehi , Richard James Black , Herbert John Shaw , Keiichiro Toyama
发明人： Behzad Moslehi , Richard James Black , Herbert John Shaw , Keiichiro Toyama
IPC分类号： G01B11/16 , G01D5/353 , G01L1/24 , G02B6/34 , G02B6/00
CPC分类号： G01L1/246 , G01B11/16 , G01D5/35316 , G01D5/35354 , G01D5/35387 , G02B6/02057 , G02B6/022 , G02B6/2932 , G02B6/29395 , G02B6/29398
摘要： A fiber optic sensor comprises two independent fibers having Bragg gratings which are coupled to commutating broadband optical sources through splitters and wavelength discriminators. The ratio of detected optical energy in each of two detectors examining the wave intensity returned to a wavelength discriminator coupled with the characteristic of the wavelength discriminator determines the wavelength returned by the grating. In another embodiment, tunable filters are utilized to detect minimum returned wave energy to extract a sensor wavelength Reference to the original grating wavelength indicates the application of either temperature or strain to the grating. In another embodiment, a plurality of Bragg grating sensor elements is coupled to sources and controllers wherein a dimensional change in a fiber having a Bragg grating is detected using a measurement system comprising broad-band sources, optical power splitters, a high-sensitivity wavelength discriminator, optical detectors, and a controller.
摘要翻译：光纤传感器包括具有布拉格光栅的两个独立光纤，其通过分离器和波长鉴别器耦合到换向宽带光源。两个检测器中检测到的光能的比率，检测返回到波长鉴别器的波强与波长鉴别器的特性相结合，确定了光栅返回的波长。在另一个实施例中，可调谐滤波器用于检测最小返回波能量以提取传感器波长。对于原始光栅波长的参考指示对光栅施加温度或应变。在另一个实施例中，多个布拉格光栅传感器元件耦合到源和控制器，其中使用包括宽带源，光功率分配器，高灵敏度波长鉴别器的测量系统检测具有布拉格光栅的光纤中的尺寸变化，光学检测器和控制器。

3. 发明授权

US07127132B1 Cascade fiber-optic grating-based sensor apparatus and method 有权
标题翻译：基于级联光纤光栅的传感器装置及方法
公开(公告)号：US07127132B1
公开(公告)日：2006-10-24
申请号：US10795693
申请日：2004-03-08
申请人： Behzad Moslehi , Kelvin K. Chau
发明人： Behzad Moslehi , Kelvin K. Chau
IPC分类号： G02B6/00
CPC分类号： G01D5/35383 , G01D5/35303 , G01L1/246 , G02B6/2932
摘要： A fiber optic sensor system includes a plurality m of sensor segments, each sensor segment further comprising a plurality n of sensor gratings for making measurements. Each sensor grating of the sensor segment operates within a unique wavelength channel, such that a plurality m of sensor segments have m sensors in each wavelength channel, and n wavelength channels, for a total of m*n sensors. A broadband optical source is gated for a duration of time which enables all of the sensors on a sensor segment to reflect optical energy corresponding to their measurement, but not long enough to receive reflected optical energy from more than one sensor on a single wavelenghth channel. In this manner, n wavelength channels of measurement can be time-multiplexed to measure m*n sensors.
摘要翻译：光纤传感器系统包括多个传感器段，每个传感器段还包括多个n个用于进行测量的传感器光栅。传感器段的每个传感器光栅在独特的波长通道内操作，使得多个传感器段在每个波长通道中具有m个传感器，在n个波长通道中具有总共m×n个传感器。宽带光源被选通持续一段时间，这使得传感器段上的所有传感器能够反映与其测量相对应的光能量，但不足以在单个波长通道上从多于一个传感器接收反射光能。以这种方式，可以对n个波长的测量通道进行时间复用以测量m * n个传感器。

4. 发明授权

US07068868B1 Sensing devices based on evanescent optical coupling 失效
标题翻译：基于ev逝光耦合的感应装置
公开(公告)号：US07068868B1
公开(公告)日：2006-06-27
申请号：US10714503
申请日：2003-11-12
申请人： Bo Pi , Wei-Cheng Wilson Lin , Zhihao Chen , Shulai Zhao
发明人： Bo Pi , Wei-Cheng Wilson Lin , Zhihao Chen , Shulai Zhao
IPC分类号： G02B6/00
CPC分类号： G02B6/2852 , G02B6/2826
摘要： Fiber sensors formed on side-polished fiber coupling ports based on evanescent coupling. Such sensors may be configured to measure various materials and may be used to form multi-phase sensing devices.
摘要翻译：基于ev逝耦合的在侧面抛光的光纤耦合端口上形成的光纤传感器。这样的传感器可以被配置为测量各种材料并且可以用于形成多相感测装置。

5. 发明授权

US07060964B1 Reflection-mode fiber sensing devices 失效
标题翻译：反射式光纤传感装置
公开(公告)号：US07060964B1
公开(公告)日：2006-06-13
申请号：US10785718
申请日：2004-02-23
申请人： Bo Pi , Wei-Cheng Wilson Lin , Zhihao Chen
发明人： Bo Pi , Wei-Cheng Wilson Lin , Zhihao Chen
IPC分类号： G02B6/26
CPC分类号： G02B6/02057 , G01D5/35374 , G01K11/3206 , G01L9/0076 , G01L11/025 , G01M3/047 , G01N21/774 , G01N2021/7736 , G01N2021/7773 , G02B6/02
摘要： Fiber sensors formed on side-polished fiber coupling ports based on evanescent coupling are described. Such sensors may be configured to measure various materials and may be used to form multi-phase sensing devices. A Bragg grating may be implemented in such sensors to form reflective fiber sensors.
摘要翻译：描述了基于ev逝耦合的侧面抛光光纤耦合端口上形成的光纤传感器。这样的传感器可以被配置为测量各种材料并且可以用于形成多相感测装置。可以在这样的传感器中实现布拉格光栅以形成反射光纤传感器。

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