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    Device for detecting rail defects and associated detection method
    2.
    发明申请
    Device for detecting rail defects and associated detection method 审中-公开

    公开(公告)号：US20200047780A1

    公开(公告)日：2020-02-13

    申请号：US16498850

    申请日：2018-03-27

    Applicant: METROLAB

    Inventor： Benoît MARICHAL ,  Sarah NASR

    IPC: B61K9/08 ,  B61L23/04

    Abstract: The present invention relates to a device for detecting defects in a rail, including at least one collection of sensors which are able to generate an electrical signal indicative of a distance (dn,i) separating the sensors and the rail, and at least one rail vehicle able to move along the rail; the collection of sensors being assembled to the rail vehicle; the rail vehicle being configured to rest on the rail in such a way that said sensors are positioned facing and some distance away from said rail. The device includes a friction pad comprising a lower surface able to slide along the rail, the friction pad further comprising at least one cavity formed in the lower surface, the at least one collection of sensors being housed in the cavity.

    Cryostat and associated maglev transport vehicle and system
    3.
    发明申请
    Cryostat and associated maglev transport vehicle and system 审中-公开

    公开(公告)号：US20180111505A1

    公开(公告)日：2018-04-26

    申请号：US15562956

    申请日：2015-06-08

    Applicant: METROLAB

    Inventor： Jean-Paul Caron ,  Pierre Bernstein ,  Jacques Noudem ,  Muhamad Aburas ,  Elisabeth Delivet ,  Benoit Bougle

    IPC: B60L13/04 ,  F17C3/08

    Abstract: A cryostat (28) intended to be integrated into a maglev transport system (10), the cryostat (28) comprising at least one superconductive element (36) and a jacket (34) inside which each superconductive element (36) is placed. The cryostat is suitable for maintaining each superconductive element (36) at the desired temperature and the jacket (34) extending along a longitudinal axis (X). The length of each superconductive element (36) along the longitudinal axis (X) is comprised between 30% and 100% of the length of the jacket (34), and each superconductive element is a bulk element made of superconductor material.

    DEVICE FOR DETECTING FAULTS IN RAILS BY MEASURING IMPEDANCE
    7.
    发明申请
    DEVICE FOR DETECTING FAULTS IN RAILS BY MEASURING IMPEDANCE 审中-公开

    公开(公告)号：US20180052127A1

    公开(公告)日：2018-02-22

    申请号：US15547498

    申请日：2015-06-08

    Applicant: Metrolab

    Inventor： René Tützauer ,  Jacques Pore ,  Marc Burier ,  Aurélie Pornin ,  Frédéric Lalloyer ,  Hervé Collard

    IPC: G01N27/02 ,  B61K9/08 ,  B61L25/02 ,  B61L3/00

    Abstract: An electrical detection device carried by a rail vehicle traveling on a railway track to detect faults in at least one rail, including a contact support suitable for being mechanically linked to the rail vehicle, at least one reference contact and corresponding measuring contact applied to a rail, and carried by the support, a processing circuit to which each reference contact and measuring contact are connected, suitable for measuring the impedance between the corresponding reference and measuring contacts, means for positioning the contact support facing the surface of the rail in a measurement direction corresponding to the axis of the rail, such that each first reference contact and each corresponding measuring contact relate to the same rail, and at least two measuring contacts transversely offset relative to the measurement direction, wherein the processing circuit includes means for measuring the impedance between at least one reference contact and each measuring contact.

    Method of manufacturing magnetic drum memory apparatus
    8.
    发明授权
    Method of manufacturing magnetic drum memory apparatus 失效
    制造磁记忆装置的方法

    公开(公告)号：US3812579A

    公开(公告)日：1974-05-28

    申请号：US18623871

    申请日：1971-10-04

    Applicant: METROLAB INC ,  SUBSIDIARY OF CUBIC CORP

    Inventor： ROES J

    IPC: G11B5/004 ,  G11B5/48 ,  G11B5/49 ,  G11B5/42

    CPC classification number: G11B5/004 ,  G11B5/48 ,  G11B5/49 ,  Y10S148/03 ,  Y10T29/4903

    Abstract: The memory apparatus incorporates a drum, mounted for rotation, and a series of hard mounted heads, spaced from the drum magnetic recording medium surface. The mounting structure includes spaced parallel aligning bars, utilized to precisely align the magnetic heads prior to finally fixing them to the structure, and resilient plastic wedges utilized to maintain a bias against the aligning bars, to compensate for the stresses induced in the assembly process. The precise spacing from the magnetic medium is accomplished by placing a spacing film over the drum, which film is removed after final assembly, leaving the proper head-tomedium gap. The final configuration is maintained by the use of epoxy adhesive to secure the heads to the aligning bars and retaining bars. The frame structure and head utilize the same metal alloy to maintain the head-to-medium gap during temperature variations. The resulting apparatus may be utilized in a voice response system for producing computer ordered, human voice response, to various commands. In this application the drum is rotated at a rate of one revolution per second and the head gap, head-to-medium spacing, and medium thickness, controlled to produce a relatively flat response characteristics over the frequencies of importance and thereby enable the use of relatively simple amplifiers with linear response characteristics.

    Abstract translation: 存储装置包括一个滚筒，用于旋转安装，以及一系列与滚筒磁记录介质表面间隔开的硬安装头。 安装结构包括间隔开的平行对准杆，用于在最终将它们固定到结构体之间精确对准磁头，以及用于保持抵靠对准杆的偏置的弹性塑料楔，以补偿在组装过程中引起的应力。 与磁性介质的精确间隔是通过在滚筒上放置间隔膜来实现的，该膜在最终组装之后被去除，留下适当的中间到中间的间隙。 通过使用环氧树脂粘合剂来保持最终配置以将头部固定到对准杆和保持杆。 框架结构和头部在温度变化期间利用相同的金属合金来保持头对中间的间隙。 所产生的装置可以用于语音响应系统中，用于产生计算机有序的人类语音响应到各种命令。 在这种应用中，鼓以每秒一转的速度旋转，并且头部间隙，头 - 中间间隔和中等厚度被控制以在重要的频率上产生相对平坦的响应特性，从而能够使用 具有线性响应特性的相对简单的放大器。

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