OPTICAL-FIBER-COMPATIBLE ACOUSTIC SENSOR
    3.
    发明申请
    OPTICAL-FIBER-COMPATIBLE ACOUSTIC SENSOR 有权
    光纤兼容声学传感器

    公开(公告)号:US20110268384A1

    公开(公告)日:2011-11-03

    申请号:US13047668

    申请日:2011-03-14

    IPC分类号: G02B6/00 B32B7/04 B23P11/00

    摘要: An acoustic sensor includes a diaphragm having a reflective element. The sensor has an optical fiber positioned relative to the reflective element such that light emitted from the optical fiber is reflected by the reflective element. A first end of the optical fiber and the reflective element form an optical cavity therebetween. The acoustic sensor further includes a structural element mechanically coupled to the diaphragm and the optical fiber. The structural element includes a material having a coefficient of thermal expansion substantially similar to the coefficient of thermal expansion of the optical fiber. For example, the material can be silica.

    摘要翻译: 声传感器包括具有反射元件的隔膜。 传感器具有相对于反射元件定位的光纤,使得从光纤发射的光被反射元件反射。 光纤的第一端和反射元件在其间形成光腔。 声学传感器还包括机械耦合到隔膜和光纤的结构元件。 结构元件包括具有基本上类似于光纤的热膨胀系数的热膨胀系数的材料。 例如,该材料可以是二氧化硅。

    ACOUSTIC SENSOR WITH AT LEAST ONE PHOTONIC CRYSTAL STRUCTURE
    4.
    发明申请
    ACOUSTIC SENSOR WITH AT LEAST ONE PHOTONIC CRYSTAL STRUCTURE 有权
    具有至少一个光子晶体结构的声学传感器

    公开(公告)号:US20120186353A1

    公开(公告)日:2012-07-26

    申请号:US13356432

    申请日:2012-01-23

    IPC分类号: G01H9/00

    CPC分类号: G01H9/00 G01H9/004

    摘要: An acoustic sensor includes at least one photonic crystal structure and an optical fiber in optical communication with the at least one photonic crystal structure. The at least one photonic crystal structure has at least one optical resonance with a resonance frequency and a resonance lineshape, wherein at least one of the resonance frequency and the resonance lineshape is responsive to acoustic waves incident upon the acoustic sensor. The acoustic sensor further includes an optical fiber in optical communication with the at least one photonic crystal structure. The optical fiber is configured to transmit light which impinges the at least one photonic crystal structure and to receive at least a portion of the light which impinges the at least one photonic crystal structure.

    摘要翻译: 声学传感器包括至少一个光子晶体结构和与所述至少一个光子晶体结构光学通信的光纤。 至少一个光子晶体结构具有至少一个具有谐振频率和谐振线形的光学谐振,其中谐振频率和谐振线形形状中的至少一个对入射到声学传感器上的声波作出响应。 声学传感器还包括与至少一个光子晶体结构光学通信的光纤。 光纤被配置为透射照射至少一个光子晶体结构的光并且接收照射至少一个光子晶体结构的光的至少一部分。

    ACOUSTIC SENSOR WITH AT LEAST ONE PHOTONIC CRYSTAL SLAB
    5.
    发明申请
    ACOUSTIC SENSOR WITH AT LEAST ONE PHOTONIC CRYSTAL SLAB 有权
    具有至少一个PHOTONIC CRYSTAL SLAB的声学传感器

    公开(公告)号:US20110041616A1

    公开(公告)日:2011-02-24

    申请号:US12874104

    申请日:2010-09-01

    IPC分类号: G01H9/00

    CPC分类号: G01H9/00 G01H9/004

    摘要: An acoustic sensor includes at least one structure including at least one photonic crystal slab and an optical fiber optically coupled to the at least one photonic crystal slab, and having at least one optical resonance with a resonance frequency and a resonance lineshape. The acoustic sensor further includes a housing mechanically coupled to the at least one structure. At least one of the resonance frequency and the resonance lineshape is responsive to acoustic waves incident upon the housing.

    摘要翻译: 声学传感器包括至少一个结构,其包括至少一个光子晶体板和光学耦合到所述至少一个光子晶体板的光纤,并且具有至少一个具有谐振频率和谐振线形的光学谐振。 声学传感器还包括机械地联接到所述至少一个结构的壳体。 谐振频率和谐振线形形状中的至少一个响应于入射到壳体上的声波。

    GYROSCOPE UTILIZING MEMS AND OPTICAL SENSING
    6.
    发明申请
    GYROSCOPE UTILIZING MEMS AND OPTICAL SENSING 有权
    使用MEMS和光学感测的GYROSCOPE

    公开(公告)号:US20100309474A1

    公开(公告)日:2010-12-09

    申请号:US12770545

    申请日:2010-04-29

    IPC分类号: G01C19/72

    摘要: A gyroscope and a method of detecting rotation are provided. The gyroscope includes a structure configured to be driven to move about a drive axis. The structure is further configured to move about a sense axis in response to a Coriolis force generated by rotation of the structure about a rotational axis while moving about the drive axis. The gyroscope further includes an optical sensor system configured to optically measure movement of the structure about the sense axis. In certain embodiments, the gyroscope is a microelectromechanical system (MEMS) gyroscope.

    摘要翻译: 提供了陀螺仪和旋转检测方法。 陀螺仪包括构造成被驱动以围绕驱动轴线移动的结构。 该结构进一步构造成响应于围绕驱动轴线移动而围绕旋转轴线的旋转旋转产生的科里奥利力而围绕感测轴移动。 陀螺仪还包括光学传感器系统,其被配置为光学地测量围绕感测轴的结构的移动。 在某些实施例中,陀螺仪是微机电系统(MEMS)陀螺仪。

    HIGH-SENSITIVITY FIBER-COMPATIBLE OPTICAL ACOUSTIC SENSOR
    7.
    发明申请
    HIGH-SENSITIVITY FIBER-COMPATIBLE OPTICAL ACOUSTIC SENSOR 有权
    高灵敏度光纤兼容光学声学传感器

    公开(公告)号:US20090208163A1

    公开(公告)日:2009-08-20

    申请号:US12369709

    申请日:2009-02-11

    IPC分类号: G02B6/00

    CPC分类号: G01H9/00 G01H9/004

    摘要: An acoustic sensor includes at least one photonic crystal structure having at least one optical resonance with a resonance frequency and a resonance lineshape. The acoustic sensor further includes a housing mechanically coupled to the at least one photonic crystal structure. At least one of the resonance frequency and the resonance lineshape is responsive to acoustic waves incident upon the housing.

    摘要翻译: 声传感器包括至少一个光子晶体结构,其具有至少一个具有谐振频率和谐振线形的光学谐振。 声学传感器还包括机械耦合到所述至少一个光子晶体结构的壳体。 谐振频率和谐振线形形状中的至少一个响应于入射到壳体上的声波。

    METHOD OF DETECTING A TOPOLOGY OF A REFLECTIVE SURFACE
    8.
    发明申请
    METHOD OF DETECTING A TOPOLOGY OF A REFLECTIVE SURFACE 有权
    检测反射表面的方法

    公开(公告)号:US20120182557A1

    公开(公告)日:2012-07-19

    申请号:US13356379

    申请日:2012-01-23

    IPC分类号: G01N21/55

    摘要: A method detects a topology of a reflective surface. The method includes providing an optical fiber positioned such that light emitted from the optical fiber is reflected by at least a portion of the reflective surface. The optical fiber and the portion of the reflective surface form an optical resonator having an optical resonance with a resonance lineshape. The method further includes emitting light from the optical fiber while the optical fiber is at a plurality of positions along the reflective surface. The light emitted from the optical fiber irradiates a corresponding plurality of portions of the reflective surface. The method further includes measuring a change of the resonance lineshape due to the irradiation of the plurality of portions of the reflective surface.

    摘要翻译: 一种方法检测反射表面的拓扑。 该方法包括提供光纤,其定位成使得从光纤发射的光被反射表面的至少一部分反射。 光纤和反射表面的部分形成具有谐振线形的光学共振的光学谐振器。 该方法还包括在光纤沿着反射表面处于多个位置时从光纤发射光。 从光纤发射的光照射反射表面的对应的多个部分。 该方法还包括测量由于反射表面的多个部分的照射引起的谐振线形变化。

    GYROSCOPE UTILIZING TORSIONAL SPRINGS AND OPTICAL SENSING
    10.
    发明申请
    GYROSCOPE UTILIZING TORSIONAL SPRINGS AND OPTICAL SENSING 有权
    使用旋转弹簧和光学感测的陀螺仪

    公开(公告)号:US20120300214A1

    公开(公告)日:2012-11-29

    申请号:US13570793

    申请日:2012-08-09

    IPC分类号: G01C19/72 B21F35/00

    摘要: A gyroscope and a method of detecting rotation are provided. The gyroscope includes a structure configured to be driven to move about a drive axis. The structure is further configured to move about a sense axis in response to a Coriolis force generated by rotation of the structure about a rotational axis while moving about the drive axis. The structure further includes at least one first torsional spring extending generally along the drive axis and at least one second torsional spring extending generally along the sense axis. The gyroscope further includes an optical sensor system configured to optically measure movement of the structure about the sense axis.

    摘要翻译: 提供了陀螺仪和旋转检测方法。 陀螺仪包括构造成被驱动以围绕驱动轴线移动的结构。 该结构进一步构造成响应于围绕驱动轴线移动而围绕旋转轴线的旋转旋转产生的科里奥利力而围绕感测轴移动。 该结构还包括大致沿着驱动轴线延伸的至少一个第一扭转弹簧和大致沿着感测轴线延伸的至少一个第二扭转弹簧。 陀螺仪还包括光学传感器系统,其被配置为光学地测量围绕感测轴的结构的移动。