Method and apparatus for optically powering and multiplexing distributed fiber optic sensors
    12.
    发明申请
    Method and apparatus for optically powering and multiplexing distributed fiber optic sensors 有权
    分布式光纤传感器光学供电和复用的方法和装置

    公开(公告)号:US20060202109A1

    公开(公告)日:2006-09-14

    申请号:US11079688

    申请日:2005-03-14

    CPC classification number: H04B10/806

    Abstract: An optical power converting apparatus is provided that may be used with remote sensors. A plurality of remote sensors may be coupled to a backbone optical fiber with each sensor having an optical power converter that receives an optical signal from a head end of that fiber. The optical power converters may store electrical energy derived from that optical signal and use that energy to power the remote sensors. The head end's optical signal may also include a clock signal, and each remote sensor may be set to sense a measurable parameter after a given number of clock cycles have been counted. In a further example, each of the optical sensors may be synchronized before counting these clock signals via a synchronization signal from the optical power converter. The remote sensors may individually and separately uplink their sensed data to the head end on the optical fiber. The apparatus may be implemented in a vehicle health management system, for example.

    Abstract translation: 提供了可以与远程传感器一起使用的光功率转换装置。 多个远程传感器可以耦合到主干光纤,每个传感器具有从该光纤的头端接收光信号的光功率转换器。 光功率转换器可以存储从该光信号导出的电能并使用该能量来为远程传感器供电。 头端的光信号还可以包括时钟信号,并且每个远程传感器可以被设置为在给定数量的时钟周期被计数之后感测可测量的参数。 在另一示例中,每个光学传感器可以在经由来自光功率转换器的同步信号对这些时钟信号进行计数之前同步。 远程传感器可以将其感测数据单独地和单独上行到光纤上的头端。 该装置可以例如在车辆健康管理系统中实现。

    Method for using a single optical emitter/receiver pair for creating a light curtain using LCD+MEMS technology for beam deflection
    13.
    发明授权
    Method for using a single optical emitter/receiver pair for creating a light curtain using LCD+MEMS technology for beam deflection 有权
    使用单个光发射器/接收器对用于使用LCD + MEMS技术创建光幕用于光束偏转的方法

    公开(公告)号:US07442917B1

    公开(公告)日:2008-10-28

    申请号:US11360081

    申请日:2006-02-23

    CPC classification number: F16P3/144 G01V8/22

    Abstract: Systems and methods are disclosed that facilitate increasing a coverage area for an emitter-receiver pair in a light curtain by generating multiple light beams from a single emitter and aggregating the light beams at a corresponding receiver. A plurality of light beams can be generated by reflection off of a MEMS mirror associated with the emitter, which can then be reflected from receiver-side mirrors along generally parallel paths, to corresponding emitter-side mirrors, which in turn reflect the light beams back to a MEMS mirror associated with the receiver. The receiver-side MEMS mirror can aggregate the reflected light beams for detection thereof by the receiver. According to a related aspect, transmissive LCD arrays can be employed at both the emitter and receiver to generate and recombine a plurality of light beams, respectively.

    Abstract translation: 公开了一种系统和方法,其通过从单个发射器产生多个光束并在对应的接收器处聚集光束来促进增加光幕中发射器 - 接收器对的覆盖面积。 可以通过与发射器相关联的MEMS镜的反射而产生多个光束,然后可以将其从接收器侧反射镜沿着大致平行的路径反射到相应的发射器侧反射镜,反射镜反射光束 涉及与接收器相关联的MEMS镜。 接收机侧MEMS镜可以聚集反射光束以供接收机检测。 根据相关方面,可以在发射器和接收器两者分别使用透射式LCD阵列来分别产生和重新组合多个光束。

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