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    • 1. 发明授权
    • Fiber optic sensor coil and tool for forming same
    • 光纤传感器线圈及其形成工具
    • US06486960B2
    • 2002-11-26
    • US09795813
    • 2001-02-27
    • Amado CordovaThomas McLeanThomas Meloeny
    • Amado CordovaThomas McLeanThomas Meloeny
    • G01B902
    • G01C19/722
    • A tool for forming a sensor coil that may be employed, for example, in a fiber optic gyroscope with reduced Shupe effect-induced bias. The tool includes a takeup reel having a cylindrical mandrel with inner flanges fixed to its opposed ends sandwiched between two outer flanges. Each of the inner flanges includes a pair of radially-directed apertures that form a radially-directed wedge therebetween. A recess in the planar portion of each of the outer flanges that contacts an inner flange is aligned with the apertures. This permits the winding of the sensor coil to form climbing turns at the ends of wound layers that lie outside an encapsulated fiber pack. Such turns, which join layers with overlying layers, avoid crossovers and the resultant stress that contributes significantly to Shupe effect-induced bias. A sensor coil having reduced internal stress is thus also provided.
    • 用于形成传感器线圈的工具,其可以例如在具有减小的Shupe效应引起的偏压的光纤陀螺仪中使用。 该工具包括具有圆柱形心轴的卷取卷轴,其具有固定在夹在两个外凸缘之间的相对端部的内凸缘。 每个内凸缘都包括一对在其间形成径向楔形的径向定向的孔。 每个外凸缘的与内凸缘接触的平面部分中的凹部与孔对准。 这允许传感器线圈的卷绕在位于封装的纤维包之外的卷绕层的端部处形成攀登匝。 这样的匝连接层与上层,避免交叉和所产生的应力,显着影响Shupe效应诱导偏倚。 因此也提供了具有减小的内部应力的传感器线圈。
    • 2. 发明授权
    • Fiber optic gyroscope coil lead dressing and method for forming the same
    • 光纤陀螺线圈导线敷料及其形成方法
    • US5973783A
    • 1999-10-26
    • US127490
    • 1998-07-31
    • Eric Lee GoldnerThomas McLeanAmado CordovaKenneth BeanArthur D. Lang
    • Eric Lee GoldnerThomas McLeanAmado CordovaKenneth BeanArthur D. Lang
    • G01C19/72
    • G01C19/722
    • An improved dressing for the fiber optic leads of a fiber optic gyroscope sensing coil and method for forming the same. A pair of fiber optic leads connect the sensing coil of a rotation sensing device to an integrated optics chip. The fiber optic leads are originally arranged to extend around the fiber optic sensing coil in different directions. The leads are formed of unequal lengths, where the longer of the leads is extended along an outer circumference of the sensing coil. The longer lead is bent so that the circumferential direction of longer lead reverses itself, and the longer lead then extends around the sensing coil in the same direction as the shorter lead. A low modulus adhesive is applied to the leads and cured to initially bond the leads in place against the sensing coil. The pair of leads are then wound in the same circumferential direction adjacent to each other fashion around the outer circumference of the sensing coil. After the desired amount of winding has been completed, a predetermined length of each of the leads is left available to be routed to the rotation sensing device. The entire outer surface of the wound fiber optic leads surrounding the temporary adhesion is then coated with a low modulus adhesive and cured to bond the wound leads against the sensing coil structure.
    • 用于光纤陀螺仪感测线圈的光纤引线的改进的敷料及其形成方法。 一对光纤引线将旋转感测装置的感测线圈连接到集成光学芯片。 光纤引线最初布置成在不同方向上围绕光纤感测线圈延伸。 引线由不等长的长度形成,其中引线的较长者沿感测线圈的外圆周延伸。 较长的引线被弯曲,使得长引线的圆周方向自身反转,然后较长的引线在与较短的引线相同的方向上围绕感测线圈延伸。 将低模量粘合剂施加到引线上并固化以将引线初始地将引线固定在抵抗传感线圈的位置。 然后,一对引线围绕感测线圈的外圆周以相邻的方向缠绕在相同的圆周方向上。 在所需的卷绕量已经完成之后,每个引线的预定长度可用于路由到旋转感测装置。 围绕临时粘合的缠绕光纤引线的整个外表面然后用低模量粘合剂涂覆并固化以将缠绕引线抵靠感测线圈结构。
    • 5. 发明授权
    • Temperature controlled laser diode package
    • 温度控制激光二极管封装
    • US5195102A
    • 1993-03-16
    • US760036
    • 1991-09-13
    • Thomas McLeanGregory S. Moore
    • Thomas McLeanGregory S. Moore
    • G01C19/72H01L33/00H01S3/04H01S5/00H01S5/022H01S5/024
    • H01S5/02216H01S5/02276H01S5/02284H01S5/02415H01S5/02484
    • The invention temperature controlled package comprises a case having sidewalls that form a closed perimeter; a cover; and a base having an input surface and an output surface. The sidewalls are integrally coupled to the base input surface to define an interior region. A heatsink has a top surface and a bottom surface. The heatsink bottom surface is attached to the input surface of a thermoelectric cooler. The bottom surface of the thermoelectric cooler is coupled to the base input surface of the case. The thermoelectric cooler responds to a control signal to move heat from the thermoelectric cooler input surface to the thermoelectric cooler output surface. In a first alternative embodiment, a laser diode coupled to the heat sink responds to an electrical input signal to providing an optical laser output signal. The optical output of the laser diode is coupled via a optical fiber through a fiberoptic feedthrough in a sidewall. The interior region is filled with xenon gas. A cover is welded on the sidewalls to form a sealed interior region with xenon gas therein. The xenon gas limits the movement of heat from the interior surface of the sidewalls and the interior surface of the cover to the surfaces of the thermoelectric cooler.
    • 本发明的温度控制包装包括具有形成封闭周边的侧壁的壳体; 封面; 以及具有输入表面和输出表面的基座。 侧壁一体地联接到基部输入表面以限定内部区域。 散热器具有顶表面和底表面。 散热器底面附着在热电冷却器的输入表面。 热电冷却器的底表面耦合到壳体的基底输入表面。 热电冷却器响应于控制信号以将热量从热电冷却器输入表面移动到热电冷却器输出表面。 在第一替代实施例中,耦合到散热器的激光二极管响应电输入信号以提供光学激光器输出信号。 激光二极管的光输出通过光纤通过侧壁中的光纤馈通来耦合。 内部区域充满氙气。 在侧壁上焊接盖以形成其中具有氙气的密封的内部区域。 氙气限制了热量从侧壁的内表面和盖的内表面到热电冷却器的表面的移动。
    • 9. 发明授权
    • System and method for providing an improved IFOG hub to coil thermal and mechanical slip interface
    • 用于提供改进的IFOG集线器以线圈热和机械滑动界面的系统和方法
    • US06496263B1
    • 2002-12-17
    • US09626511
    • 2000-07-27
    • John R. HallDavid F. LibmanThomas McLean
    • John R. HallDavid F. LibmanThomas McLean
    • G01C1972
    • G01C19/722
    • A system and method for providing a rotation sensor for use in a fiber optic gyroscope including a centrally-located cylindrical hub having an improved slip interface positioned there around. The central hub has a substantially planar mounting flange extending from one of its ends, where the axis of rotation of the central hub is orthogonal to the plane of the mounting flange. A sensor coil comprising a plurality of layers of coaxial turns of optical fiber embedded in a potting material is formed around an outer surface of the interface. The interface allows the potted coil to expand or contract along the axial direction of the central hub due to thermal expansion while maintaining a constant thermal and mechanical connection between the interface and the potted coil. In this manner, the present invention maintains the integrity of the potted coil and its connection to the interface during thermal expansion of the potted coil, thus minimizing temperature-induced Shupe bias errors in the rotation sensor.
    • 一种用于提供用于光纤陀螺仪的旋转传感器的系统和方法,所述旋转传感器包括位于其周围的具有改进的滑动界面的中心定位的圆柱形轮毂。 中心毂具有从其一端延伸的基本上平面的安装凸缘,其中中心毂的旋转轴线正交于安装凸缘的平面。 包括嵌入在封装材料中的多个光纤同轴匝的传感器线圈形成在界面的外表面周围。 该接口允许盆式线圈由于热膨胀而沿着中心毂的轴向方向膨胀或收缩,同时保持界面和封闭线圈之间恒定的热和机械连接。 以这种方式,本发明在封套线圈的热膨胀期间保持了封套线圈的完整性及其与界面的连接,从而最小化了旋转传感器中温度引起的Shupe偏差误差。
    • 10. 发明授权
    • Snap fit magnetic shields for laser gyroscopes
    • US06462824B1
    • 2002-10-08
    • US09538932
    • 2000-03-31
    • Thomas McLeanEric L. GoldnerMichael J. Tweedy
    • Thomas McLeanEric L. GoldnerMichael J. Tweedy
    • G01C1972
    • G01C19/722
    • Interconnection mechanisms for a laser gyroscope assembly (10) enable it to be rapidly and non-harmfully assembled and disassembled prior to a more durable interconnection, to facilitate repair and rework. The assembly includes a fiber optic spool (12), an inner shield (16) and an outer shield (18), which are formed of a stress-annealed magnetic and generally malleable material. The outer shield comprises upper and lower portions or parts (30, 32) whose first and second end segments (62, 66) respectively terminate the portions. Segment (66) has angled intersecting conical surfaces (74, 76) which engage surfaces (65, 67) on segment (62). Stops (80, 83) are formed respectively on the ends of the segments so that a distal end (68) contacts an interior ledge surface (80) of outer shield (34), thereby to limit the mutual engagement and to center the segment configuration interfit. The position and location of the stop allows the intersecting edges of surface (65, 67) of outer shield (34) to precisely contact reverse taper segment (76) of surface (70) at a point beneath intersection (78) to ensure positive retention and mechanical locking of the upper and lower portions of outer shield (18). A plurality of notches (84) are positioned evenly about the periphery of the lower portion of the outer shield at its intersection of the upper portion. Tangs (90, 92) of a tool (88) are inserted in seriatim within the spaces for gradual disassembly of the upper and lower outer shield portions without harm thereto. Inner shield (16) includes a cover (28) having two pairs of projections (130, 132) which can snap together, and a top annular segment (126) which is engageable with a centering projection (138) on end (26) of the spool. When the cover is secured to the spool, the top annular segment is flexed, but not deformed, to provide a spring bias and positive retention and, consequently, a solid and chatter-resistant engagement in a robust mechanical connection even under severe dynamic environments.