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公开(公告)号：US08531655B2
公开(公告)日：2013-09-10
申请号：US13233577
申请日：2011-09-15
CPC分类号： G01B11/161 , G01B9/02023 , G01B11/18 , G01B21/042 , G01B21/045 , G02B6/02042
摘要： An interferometric measurement system includes a spun optical fiber including multiple optical waveguides configured in the fiber. Interferometric detection circuitry detects measurement interferometric pattern data associated with each of the multiple optical waveguides when the optical fiber is placed into a bend. Data processing circuitry determines compensation parameters that compensate for variations between an optimal configuration of the multiple optical waveguides in the fiber and an actual configuration of multiple optical waveguides in the fiber. The compensation parameters are stored in memory for compensating subsequently-obtained measurement interferometric pattern data for the fiber. The compensation parameters are applied to the subsequently-obtained measurement interferometric pattern data in order to distinguish between axial strain, bend strain, and twist strain on the fiber and to accurately determine one or more strain values for the fiber corresponding to one or more of the axial strain, bend strain, or twist strain on the fiber.
摘要翻译： 干涉测量系统包括在光纤中配置的包括多个光波导的纺丝光纤。 当光纤放入弯曲部时，干涉测量电路检测与多个光波导中的每一个相关联的测量干涉图案数据。 数据处理电路确定补偿参数，其补偿光纤中多个光波导的最佳配置与光纤中多个光波导的实际配置之间的变化。 补偿参数存储在存储器中，用于补偿随后获得的用于光纤的测量干涉图案数据。 将补偿参数应用于随后获得的测量干涉图案数据，以便区分光纤上的轴向应变，弯曲应变和扭曲应变，并且准确地确定对应于一个或多个的纤维的纤维的一个或多个应变值 轴向应变，弯曲应变或纤维上的扭曲应变。
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公开(公告)号：US20120069347A1
公开(公告)日：2012-03-22
申请号：US13233577
申请日：2011-09-15
IPC分类号： G01B9/02
CPC分类号： G01B11/161 , G01B9/02023 , G01B11/18 , G01B21/042 , G01B21/045 , G02B6/02042
摘要： An interferometric measurement system includes a spun optical fiber including multiple optical waveguides configured in the fiber. Interferometric detection circuitry detects measurement interferometric pattern data associated with each of the multiple optical waveguides when the optical fiber is placed into a bend. Data processing circuitry determines compensation parameters that compensate for variations between an optimal configuration of the multiple optical waveguides in the fiber and an actual configuration of multiple optical waveguides in the fiber. The compensation parameters are stored in memory for compensating subsequently-obtained measurement interferometric pattern data for the fiber. The compensation parameters are applied to the subsequently-obtained measurement interferometric pattern data in order to distinguish between axial strain, bend strain, and twist strain on the fiber and to accurately determine one or more strain values for the fiber corresponding to one or more of the axial strain, bend strain, or twist strain on the fiber.
摘要翻译： 干涉测量系统包括在光纤中配置的包括多个光波导的纺丝光纤。 当光纤放入弯曲部时，干涉测量电路检测与多个光波导中的每一个相关联的测量干涉图案数据。 数据处理电路确定补偿参数，其补偿光纤中多个光波导的最佳配置与光纤中多个光波导的实际配置之间的变化。 补偿参数存储在存储器中，用于补偿随后获得的用于光纤的测量干涉图案数据。 将补偿参数应用于随后获得的测量干涉图案数据，以便区分光纤上的轴向应变，弯曲应变和扭曲应变，并且准确地确定对应于一个或多个的纤维的纤维的一个或多个应变值 轴向应变，弯曲应变或纤维上的扭曲应变。
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公开(公告)号：US09109969B2
公开(公告)日：2015-08-18
申请号：US14126536
申请日：2012-06-12
CPC分类号： G01L1/242 , G01B11/16 , G01B11/18 , G02B6/02042 , G02B6/022 , G02B6/02285 , G02B6/4403 , G02B6/4405 , G02B6/441 , G02B6/4413 , G02B6/4427
摘要： A twisted, multicore fiber communicates light input to each core to an output. The twisting mitigates relative time delays of the input light traveling through each of the cores in the multicore fiber to the output caused by bending of that multicore fiber. An example application is in an optical network that includes an optical input terminal and an optical sensor connected by a twisted multicore connecting fiber. One example of twisted multicore optical fiber is helically-wrapped, multicore fiber.
摘要翻译： 扭转的多芯光纤将每个核心的光输入连接到输出。 扭转减轻了穿过多芯光纤中的每个芯的输入光的相对时间延迟到由该多芯光纤的弯曲引起的输出。 示例应用在光网络中，其包括光输入端子和通过扭绞多芯连接光纤连接的光学传感器。 扭转多芯光纤的一个例子是螺旋缠绕的多芯光纤。
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