Flexible insert for heat pipe freeze protection
    1.
    发明授权
    Flexible insert for heat pipe freeze protection 失效
    用于热管防冻的柔性插件

    公开(公告)号:US5579828A

    公开(公告)日:1996-12-03

    申请号:US586104

    申请日:1996-01-16

    IPC分类号: F28D15/02 F28F19/00 F28D7/00

    摘要: A flexible, pressurized insert for insertion within the hot (evaporator) side of an inclined heat pipe that forms a part of a heat pipe heat exchanger. This insert is employed in order to prevent such heat pipe from rupturing in the event the working fluid contained therein freezes. This insert is constructed of a thin-walled flexible material that is capable of being deformed (i.e. compressed) thereby absorbing the expansion pressures exerted by the working fluid should the working fluid freeze or be exposed to freezing temperatures. By such absorption, the outer heat pipe itself will not be over-pressurized which might otherwise lead to its rupture. Upon the thawing of the working fluid, the pressurized insert (which is at a pressure greater than that of the working fluid in its non-frozen state) will once again regain its shape.

    摘要翻译: 一种用于插入形成热管热交换器的一部分的倾斜热管的热(蒸发器)侧的柔性加压插入件。 使用该插入件以防止在其中所含的工作流体冻结的情况下这种热管破裂。 该插入件由能够变形(即压缩)的薄壁柔性材料构成,从而当工作流体冻结或暴露于冷冻温度时吸收由工作流体施加的膨胀压力。 通过这样的吸收,外部热管本身将不会被过度加压,否则可能导致其破裂。 在工作流体解冻时,加压插入件(其压力大于非冻结状态下的工作流体的压力)将再次恢复其形状。

    Method of prestressing a tubular apparatus
    2.
    发明授权
    Method of prestressing a tubular apparatus 失效
    管状装置预应力的方法

    公开(公告)号:US4538442A

    公开(公告)日:1985-09-03

    申请号:US619396

    申请日:1984-06-11

    申请人: Stuart E. Reed

    发明人: Stuart E. Reed

    摘要: A tubular apparatus is assembled of inner and outer tubes which are connected at spaced locations along their length. After heat treatment and other processing steps, either the inner or outer tube is heated to reduce its yield strength and then stretched beyond its yield point but not beyond the yield point of the other tubular. The heat source is removed so that the stretched state is maintained. The tubular apparatus is thus prestressed with the inner tube under compressive prestressing when the inner tube has been heated and stretched, and the inner tube under tensile prestressing when the outer tube has been heated and stretched.

    摘要翻译: 内管和外管组装有管状装置,它们沿其长度在间隔开的位置连接。 在热处理和其他加工步骤之后,加热内管或外管以降低其屈服强度,然后拉伸超出其屈服点,但不超过另一个管的屈服点。 除去热源,使得维持拉伸状态。 因此,当内管已经被加热和拉伸时,管状装置在压缩预应力下被预应力,当外管被加热和拉伸时,内管处于拉伸预应力状态。

    Manual arc welding speed pacer
    3.
    发明授权
    Manual arc welding speed pacer 失效
    手动电弧焊速度踏板

    公开(公告)号:US5464957A

    公开(公告)日:1995-11-07

    申请号:US9696

    申请日:1993-01-27

    IPC分类号: B23K9/095

    CPC分类号: B23K9/0956

    摘要: An apparatus and method for pacing the application of a manual weld along the weld line generates beeps or light flashes at a rate which can be correlated by the welder with markings along the weld line. As each beep or flash is perceived, the welder should reach the next marking. Spacing between the markings determines the desired rate at which the weld is being applied. Alternatively, sequentially lightable areas are distributed along the weld line and sequentially lit a desired rate. The welder chases the sequence along the weld line to achieve the optimum rate of welding.

    摘要翻译: 用于沿着焊接线施加手动焊接的装置和方法以可以通过焊工与焊接线的标记相关联的速率产生嘟嘟声或闪光。 当每个哔哔声或闪光灯被感知时,焊工应该达到下一个标记。 标记之间的间距决定了施加焊缝的期望速率。 或者,沿着焊接线分布顺序可点亮区域,并依次点亮所需的速率。 焊机沿着焊接线追踪序列以达到最佳的焊接速度。

    Optical fiber loop temperature sensor
    4.
    发明授权
    Optical fiber loop temperature sensor 失效
    光纤回路温度传感器

    公开(公告)号:US5258614A

    公开(公告)日:1993-11-02

    申请号:US957743

    申请日:1992-10-07

    摘要: A fiber optic loop temperature sensor employs a fiber optic loop (90) having a predetermined fixed radius where a light source (96) supplies light to the signal optical fiber (92) with the loop and a second reference optical fiber (100) receives light from the light source (96) for providing a reference light intensity. The light intensities from both optical fibers are measured and the temperature is determined from differences therein. Advantageously, the fiber optic loop temperature sensor is employed in a temperature compensated, self-referenced fiber optic microbend pressure transducer to compensate for thermal offset of the microbend sensor output. In the preferred embodiment, time division multiplexing provides at least two bi-cell photodetectors (82) with output and source signals for generating a log ratio output for determining the sensed parameter independent of cable and connector offsets and light source fluctuations in addition to compensation for thermal offset. An alternate embodiment uses time domain intensity referencing.

    摘要翻译: 光纤环路温度传感器采用具有预定的固定半径的光纤环路(90),其中光源(96)用光环向信号光纤(92)提供光,第二参考光纤(100)接收光 从用于提供参考光强度的光源(96)。 测量两根光纤的光强度,并根据其中的差异确定温度。 有利地,光纤环路温度传感器用于温度补偿的,自参照的光纤微弯压力传感器,以补偿微弯传感器输出的热偏移。 在优选实施例中,时分复用提供具有输出和源信号的输出和源信号的至少两个双电池光电检测器(82),用于产生对数比输出,用于确定独立于电缆和连接器偏移和光源波动的感测参数, 热偏移。 替代实施例使用时域强度参考。

    Temperature compensated microbend fiber optic differential pressure
transducer
    5.
    发明授权
    Temperature compensated microbend fiber optic differential pressure transducer 失效
    温度补偿微弯光纤差压传感器

    公开(公告)号:US5386729A

    公开(公告)日:1995-02-07

    申请号:US124894

    申请日:1993-09-22

    IPC分类号: G01L9/00 G01L13/02 G01L19/04

    摘要: A differential pressure transducer cell comprises a housing and a pair of spaced diaphragms connected at one end to one portion of the housing and connected at an opposite end to a second portion of the housing. The diaphragms have an outer surface and an inner surface; and the outer surface of each diaphragm is exposed to a pressure. A beam is connected between the diaphragms at the inner surface of the diaphragms. Sensors are also provided on the beam.

    摘要翻译: 差压换能器单元包括壳体和一对间隔开的隔膜,所述隔膜在一端连接到壳体的一部分并且在与壳体的第二部分相对的端部处连接。 隔膜具有外表面和内表面; 并且每个隔膜的外表面暴露于压力。 光束连接在隔膜的内表面的隔膜之间。 传感器也提供在梁上。

    Self-powered fiber optic microbend sensors
    6.
    发明授权
    Self-powered fiber optic microbend sensors 失效
    自供光纤微弯传感器

    公开(公告)号:US5260566A

    公开(公告)日:1993-11-09

    申请号:US897715

    申请日:1992-06-12

    申请人: Stuart E. Reed

    发明人: Stuart E. Reed

    IPC分类号: G01D5/353 G01L1/24 H01J5/16

    CPC分类号: G01L1/245 G01D5/35345

    摘要: A sensor comprises an optical sensor fiber which has a microbend module engaged thereto. When the module is subjected to external influences such as pressure, displacement or the like, it places microbends in the sensor fiber which changes a light transmission characteristic of the fiber. Light passing through the sensor fiber is detected, and changes in the light are measured to find the influence on the modulator. A scintillating or florescent source fiber connected to one end of the sensor fiber is exposed to radiant energy. This produces light which is channeled to the sensor fiber as the light source for the sensor fiber.

    摘要翻译: 传感器包括具有与其接合的微弯曲模块的光学传感器光纤。 当模块受到诸如压力,位移等的外部影响时,它将微弯曲放置在传感器光纤中,这改变了光纤的透光特性。 检测到通过传感器光纤的光,并测量光的变化,以发现对调制器的影响。 连接到传感器光纤的一端的闪烁或荧光源光纤暴露于辐射能。 这产生作为传感器光纤的光源引导到传感器光纤的光。

    Temperature compensation for fiber optic sensors
    7.
    发明授权
    Temperature compensation for fiber optic sensors 失效
    光纤传感器的温度补偿

    公开(公告)号:US5396568A

    公开(公告)日:1995-03-07

    申请号:US124916

    申请日:1993-09-22

    IPC分类号: G01D5/353 G02B6/26

    CPC分类号: G01D5/35303

    摘要: A method for achieving thermal compensation of a microbend sensor used in a fiber optic system and exposed to a thermal environment comprises providing a length of optical fiber and a light source at the optical fiber for passing light through the fiber. A detector is provided at the optical fiber for detecting the light passed through the fiber. A section of the fiber is split for establishing an active leg and a reference leg. An active microbend sensor is provided on the active leg in a thermal environment for producing an active signal; and a reference microbend sensor is provided on the reference leg in the thermal environment near the active sensor for producing a reference signal. The active signal and the reference signal are then detected and a compensation for the active sensor is determined based on the active signal and the reference signal.

    摘要翻译: 用于实现光纤系统中使用并暴露于热环境中的微弯传感器的热补偿的方法包括在光纤处提供一定长度的光纤和光源以使光通过光纤。 在光纤处设置检测器,用于检测通过光纤的光。 纤维的一部分被分割以建立活动腿和参考腿。 在热环境中的活动腿上提供主动微弯传感器以产生有效信号; 并且在有源传感器附近的热环境中的参考腿上提供参考微弯传感器,用于产生参考信号。 然后检测有源信号和参考信号,并根据有效信号和参考信号确定有源传感器的补偿。

    Fiber optic radiation monitor
    8.
    发明授权
    Fiber optic radiation monitor 失效
    光纤辐射监测仪

    公开(公告)号:US5313065A

    公开(公告)日:1994-05-17

    申请号:US938722

    申请日:1992-09-01

    申请人: Stuart E. Reed

    发明人: Stuart E. Reed

    IPC分类号: G01T1/20 G01T1/203 G01T5/08

    摘要: Scintillating optical fiber is used in a probe for detecting radiation. The scintillating optical fiber is fused to an extension fiber leading to optoelectronics such as p-intrinsic n-photodiodes or avalanche photodiodes. The fibers are housed in a durable probe body for penetration into the ground. When radiation is present, dopants in the scintillating fiber emit visible light through the extension fiber to the optoelectronics. Amplifiers are provided for monitoring the light intensity transmitted along the fibers and for triggering an alarm circuit signaling the presence of radiation at the probe.

    摘要翻译: 闪烁光纤用于探测辐射的探头。 闪烁光纤熔接到通向光电子的延伸光纤,例如p本征n-光电二极管或雪崩光电二极管。 纤维被容纳在耐用的探针体中以便穿透到地面中。 当存在辐射时,闪烁光纤中的掺杂剂通过延伸光纤向光电子发射可见光。 提供放大器用于监测沿着光纤传输的光强度,并且用于触发报警电路,用信号通知探测器处是否存在辐射。

    Fiber optic microbend sensor with braided fibers
    9.
    发明授权
    Fiber optic microbend sensor with braided fibers 失效
    具有编织纤维的光纤微弯传感器

    公开(公告)号:US4891511A

    公开(公告)日:1990-01-02

    申请号:US238695

    申请日:1988-08-31

    申请人: Stuart E. Reed

    发明人: Stuart E. Reed

    IPC分类号: G01D5/353

    CPC分类号: G01D5/35377 G01D5/35374

    摘要: A fiber optic microbend sensor with a braided arrangement of multiple optical fibers (or fibers and fillers) 16 such that the length dependent microbending losses result from the interaction of the fibers 10 themselves (or the fibers and fillers) without the need for additional external structures such as corrugated plates 12, 14. A plurality of fibers with at least one of the fibers being an optical fiber 10 are braided together into an interwoven strand 16 to produce the fiber optic microbend sensor. The spatial bend frequency of the braid 16 corresponds to the optimum microbend frequency for the fiber 10.

    摘要翻译: 具有多根光纤(或纤维和填料)16的编织布置的光纤微弯传感器,使得长度相关的微弯曲损耗由纤维10自身(或纤维和填料)的相互作用产生,而不需要额外的外部结构 例如波纹板12,14。具有光纤10中的至少一个光纤的多个光纤被编织在一起成为交织链16以产生光纤微弯曲传感器。 编织物16的空间弯曲频率对应于纤维10的最佳微弯曲频率。

    Weldable instrumentation installation tool
    10.
    发明授权
    Weldable instrumentation installation tool 失效
    焊接仪表安装工具

    公开(公告)号:US4208567A

    公开(公告)日:1980-06-17

    申请号:US968061

    申请日:1978-12-11

    申请人: Stuart E. Reed

    发明人: Stuart E. Reed

    CPC分类号: B23K11/0033

    摘要: An instrumentation installation tool (30) for weldably attaching strain gages (20) or other instrumentation to the interior of a steam generator tube (42). The exterior surface of the section (32) is formed with four longitudinal grooves (32A, 36B, 36C and 38). A welding slot (44) is situated in one of the grooves (38). A ramp (46), oriented within the section (32) is in close proximity to the slot (44). Additionally, an elongated multitipped electrode (80) is slidably and coaxially disposed within the section (32).

    摘要翻译: 一种用于将应变计(20)或其他仪器可焊接地连接到蒸汽发生器管(42)的内部的仪表安装工具(30)。 部分(32)的外表面形成有四个纵向凹槽(32A,36B,36C和38)。 焊接槽(44)位于一个凹槽(38)中。 定位在部分(32)内的斜面(46)紧邻槽(44)。 此外,细长的多点电极(80)可滑动并同轴地设置在部分(32)内。