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21 条记录 (耗时 0.012 秒)

    PROTECTIVE TUBE FOR CRYOGENIC APPLICATIONS
    1.
    发明公开
    PROTECTIVE TUBE FOR CRYOGENIC APPLICATIONS 审中-公开

    公开(公告)号：US20230314235A1

    公开(公告)日：2023-10-05

    申请号：US18043188

    申请日：2021-07-16

    申请人： Endress+Hauser Wetzer GmbH+Co. KG

    发明人： Dietmar Saecker

    IPC分类号： G01K1/08 ,  G01K1/14 ,  G01K13/02

    CPC分类号： G01K1/08 ,  G01K1/14 ,  G01K13/026 ,  G01K13/006

    摘要： A protective tube for an apparatus for determining and/or monitoring a process variable of a medium in a containment includes a tubular element for receiving a measuring insert of the apparatus, wherein the tubular element is securable to the containment such that the tubular element extends inwardly into an internal volume of the containment, wherein the tubular element includes an inlet opening and an outlet opening arranged on mutually oppositely lying sides of the tubular element. The present disclosure relates, furthermore, to an arrangement for determining and/or monitoring a process variable of a medium in a containment, the arrangement including an apparatus for determining and/or monitoring the process variable with a measuring insert and a protective tube according to the present disclosure.

    CRYOGENIC TEMPERATURE MEASURING RESISTOR ELEMENT
    4.
    发明申请
    CRYOGENIC TEMPERATURE MEASURING RESISTOR ELEMENT 有权
    低温温度测量电阻元件

    公开(公告)号：US20150211942A1

    公开(公告)日：2015-07-30

    申请号：US13982700

    申请日：2012-10-19

    申请人： OKAZAKI MANUFACTURING COMPANY

    发明人： Shinichiro Saraie ,  Takashi Mihara ,  Koichi Ito

    IPC分类号： G01K13/00 ,  G01K7/06 ,  C03B19/09 ,  G01K7/16

    CPC分类号： G01K13/006 ,  C03B19/09 ,  G01K7/06 ,  G01K7/16 ,  G01K7/183 ,  G01K2203/00 ,  H01C7/04

    摘要： Provided is a cryogenic temperature measuring resistor element including a metallic temperature measuring resistor wire, an electric insulator made of a polycrystalline ceramic material, and a filler filled between the electric insulator and the temperature measuring resistor wire. The filler includes polycrystalline inorganic electric insulating powder, particles of the insulating powder being connected by glass. The glass has a lower softening point than respective melting points of the inorganic electric insulating powder, the temperature measuring resistor wire, and the electric insulator.

    摘要翻译： 提供了一种低温温度测量电阻元件，包括金属温度测量电阻器线，由多晶陶瓷材料制成的电绝缘体和填充在电绝缘体和温度测量电阻器线之间的填充物。 填料包括多晶无机电绝缘粉末，绝缘粉末的颗粒通过玻璃连接。 玻璃的软化点比无机电绝缘粉末，温度测量电阻器线和电绝缘体的熔点低。

    Method for detecting non-superconducting transition of superconducting wire
    7.
    发明授权
    Method for detecting non-superconducting transition of superconducting wire 有权
    超导线非超导转变检测方法

    公开(公告)号：US09488606B2

    公开(公告)日：2016-11-08

    申请号：US13728570

    申请日：2012-12-27

    申请人： Fujikura Ltd.

    发明人： Koji Omichi ,  Yoshihiro Terada

    IPC分类号： G01N1/14 ,  G01N13/00 ,  G01N25/00 ,  G01K1/14 ,  G01K3/00 ,  G01K11/32 ,  G01K13/00

    CPC分类号： G01N25/00 ,  G01K1/14 ,  G01K3/005 ,  G01K11/3206 ,  G01K13/006 ,  G01K2203/00

    摘要： A method for detecting a non-superconducting transition of a superconducting wire including a substrate, a superconducting layer having a critical temperature of 77 K or more, and a metal stabilization layer includes, adhesively attaching an optical fiber where a plurality of fiber Bragg gratings are formed in a core along a longitudinal direction thereof to the superconducting wire; measuring in advance a Bragg wavelength shift of the fiber Bragg gratings for a temperature variation of the superconducting wire, and determining a relational expression based on the shift for a temperature calculation of the superconducting wire; determining temperature variations of the fiber Bragg gratings before and after the non-superconducting transition of the superconducting wire using the relational expression; and calculating a propagation rate of the non-superconducting transition based on both a time difference of temperature increases of the fiber Bragg gratings, and an interval between each of the fiber Bragg gratings.

    摘要翻译： 一种用于检测包括衬底，临界温度为77K或更高的超导层以及金属稳定层的超导线的非超导转变的方法，包括：粘附附着多个光纤布拉格光栅的光纤， 沿着其纵向方向形成在芯中至超导线; 预先测量用于超导线的温度变化的光纤布拉格光栅的布拉格波长偏移，并且基于超导线的温度计算的偏移来确定关系表达式; 使用关系式确定超导线的非超导转变之前和之后的光纤布拉格光栅的温度变化; 以及基于光纤布拉格光栅的温度升高的时间差以及每个光纤布拉格光栅之间的间隔来计算非超导转变的传播速率。

    Cryogenic fiber optic temperature sensor
    9.
    发明授权
    Cryogenic fiber optic temperature sensor 失效
    低温光纤温度传感器

    公开(公告)号：US6072922A

    公开(公告)日：2000-06-06

    申请号：US100072

    申请日：1998-06-19

    申请人： Sacharia Albin ,  Jianli Zheng ,  Arnel Lavarias

    发明人： Sacharia Albin ,  Jianli Zheng ,  Arnel Lavarias

    IPC分类号： G01K11/32 ,  G01K13/00 ,  G02B6/02 ,  G02B6/24 ,  G02B6/00

    CPC分类号： G01K13/006 ,  G01K11/32 ,  G02B6/02104 ,  G02B6/02033 ,  G02B6/02204 ,  G02B6/241

    摘要： Because the thermal expansion coefficient ("TEC") of glass is small-to-negligible at low temperatures, traditional fiber Bragg grating ("FBG") sensors and long period grating ("LPG") sensors are not adequately sensitive to accurately measure cryogenic temperature changes. However, as demonstrated herein, the integration of a coating around an optical fiber (the coating having a TEC that is greater than that of the fiber alone) can allow the induction of additional thermal strain in the fiber. In this light, a new sensor for cryogenic temperature measurement has been invented that mechanically amplifies temperature transduction within fiber grating sensors. The invention has the benefit of being useful for measuring non-cryogenic temperature changes as well. The thickness of the coating can be optimized.

    摘要翻译： 由于传统的光纤布拉格光栅（“FBG”）传感器和长周期光栅传感器（“LPG”）传感器对玻璃的热膨胀系数（“TEC”）在低温下可以忽略不计，因此传感器对于精确测量低温 温度变化。 然而，如本文所证明的，涂层围绕光纤（具有大于单独纤维的TEC的涂层）的整合可以允许在纤维中诱导额外的热应变。 在这方面，已经发明了用于低温测量的新传感器，其机械地放大光纤光栅传感器内的温度转换。 本发明也有益于测量非低温温度变化。 可以优化涂层的厚度。