SUPERCONDUCTING ELECTROMAGNET DEVICE, COOLING METHOD THEREFOR, AND MAGNETIC RESONANCE IMAGING DEVICE
    1.
    发明申请
    SUPERCONDUCTING ELECTROMAGNET DEVICE, COOLING METHOD THEREFOR, AND MAGNETIC RESONANCE IMAGING DEVICE 有权
    超导电子设备,其冷却方法和磁共振成像装置

    公开(公告)号:US20140329688A1

    公开(公告)日:2014-11-06

    申请号:US14360653

    申请日:2012-11-28

    申请人: HITACHI, LTD

    IPC分类号: H01F6/04 G01R33/3815

    摘要: A superconducting magnet device is configured to include: a refrigerant circulation flowpath in which a refrigerant (R) circulates; a refrigerator for cooling vapor of the refrigerant (R) in the refrigerant circulation flowpath; a superconducting coil cooled by the circulating refrigerant (R); a protective resistor thermally contacting the superconducting coil and having an internal space (S); a high-boiling-point refrigerant supply section for supplying a high-boiling-point refrigerant having a higher boiling point than the refrigerant (R) and frozen by the refrigerant (R) to the internal space (S) in the protective resistor; and a vacuum insulating container for at least accommodating the refrigerant circulation flowpath, the superconducting coil, and the protective resistor.

    摘要翻译: 超导磁体装置构成为包括:制冷剂循环流路,其中制冷剂(R)循环; 用于冷却制冷剂循环流路中的制冷剂(R)的蒸气的冷冻机; 由循环制冷剂(R)冷却的超导线圈; 与所述超导线圈热接触并具有内部空间(S)的保护电阻器; 高沸点制冷剂供给部,用于供给比制冷剂(R)沸点高的高沸点制冷剂,并由制冷剂(R)冻结到保护电阻体内的内部空间(S); 以及真空绝热容器,用于至少容纳制冷剂循环流路,超导线圈和保护电阻。

    Welding monitoring system and welding monitoring method

    公开(公告)号:US11029254B2

    公开(公告)日:2021-06-08

    申请号:US16032371

    申请日:2018-07-11

    申请人: Hitachi, Ltd.

    IPC分类号: B23K31/12 B23K37/04 G01N21/88

    摘要: There are provided a welding monitoring system which can multidimensionally monitor a welding portion with high accuracy and a monitoring method thereof, by using a relatively simple configuration.
    There is provided a welding monitoring system which monitors a subject, including: a mechanical portion; and an imaging portion, in which the mechanical portion includes a transport arm which transports the subject, a subject holding portion which holds the subject, and an energizing device which causes welding with respect to the subject to be performed, and in which the imaging portion includes imaging means for obtaining imaging data of the subject, a data recording portion which records the imaging data, an analyzing portion which extracts predetermined characteristics from the imaging data, a comparison determination portion which compares the extracted characteristics and normal characteristics to each other to determine the presence or absence of abnormality, and a determination result output portion which outputs a determination result by the comparison determination portion.

    Superconducting magnet apparatus
    3.
    发明授权
    Superconducting magnet apparatus 有权
    超导磁体设备

    公开(公告)号:US08989828B2

    公开(公告)日:2015-03-24

    申请号:US13899673

    申请日:2013-05-22

    申请人: Hitachi, Ltd.

    IPC分类号: H01F6/06 H01F6/04

    CPC分类号: H01F6/06 H01F6/04

    摘要: A superconducting magnet apparatus includes: a bobbin around which a superconducting coil is wound, the bobbin serving as a protective resistor; a persistent current switch for supplying a persistent current to the superconducting coil; a first closed circuit with the superconducting coil and the persistent current switch connected in series to the coil; and a second closed circuit with the superconducting coil and the bobbin connected in series to the coil.

    摘要翻译: 一种超导磁体装置,包括:卷绕有超导线圈的线轴,所述线轴用作保护电阻; 用于向超导线圈提供持续电流的持续电流开关; 具有与线圈串联连接的超导线圈和持续电流开关的第一闭合电路; 以及第二闭合电路,其中超导线圈和线圈与线圈串联连接。

    Welding monitoring system and welding monitoring method

    公开(公告)号:US10935500B2

    公开(公告)日:2021-03-02

    申请号:US15786770

    申请日:2017-10-18

    申请人: Hitachi, Ltd.

    IPC分类号: G01N21/88 B23K31/12 B23K37/04

    摘要: There are provided a welding monitoring system which can multidimensionally monitor a welding portion with high accuracy and a monitoring method thereof, by using a relatively simple configuration.
    There is provided a welding monitoring system which monitors a subject, including: a mechanical portion; and an imaging portion, in which the mechanical portion includes a transport arm which transports the subject, a subject holding portion which holds the subject, and an energizing device which causes welding with respect to the subject to be performed, and in which the imaging portion includes imaging means for obtaining imaging data of the subject, a data recording portion which records the imaging data, an analyzing portion which extracts predetermined characteristics from the imaging data, a comparison determination portion which compares the extracted characteristics and normal characteristics to each other to determine the presence or absence of abnormality, and a determination result output portion which outputs a determination result by the comparison determination portion.

    Superconducting electromagnet device, cooling method therefor, and magnetic resonance imaging device
    6.
    发明授权
    Superconducting electromagnet device, cooling method therefor, and magnetic resonance imaging device 有权
    超导电磁铁装置及其冷却方法及磁共振成像装置

    公开(公告)号:US08988176B2

    公开(公告)日:2015-03-24

    申请号:US14360653

    申请日:2012-11-28

    申请人: Hitachi, Ltd.

    IPC分类号: H01F6/00 H01F6/04 G01R33/3815

    摘要: A superconducting magnet device is configured to include: a refrigerant circulation flowpath in which a refrigerant (R) circulates; a refrigerator for cooling vapor of the refrigerant (R) in the refrigerant circulation flowpath; a superconducting coil cooled by the circulating refrigerant (R); a protective resistor thermally contacting the superconducting coil and having an internal space (S); a high-boiling-point refrigerant supply section for supplying a high-boiling-point refrigerant having a higher boiling point than the refrigerant (R) and frozen by the refrigerant (R) to the internal space (S) in the protective resistor; and a vacuum insulating container for at least accommodating the refrigerant circulation flowpath, the superconducting coil, and the protective resistor.

    摘要翻译: 超导磁体装置构成为包括:制冷剂循环流路,其中制冷剂(R)循环; 用于冷却制冷剂循环流路中的制冷剂(R)的蒸气的冷冻机; 由循环制冷剂(R)冷却的超导线圈; 与所述超导线圈热接触并具有内部空间(S)的保护电阻器; 高沸点制冷剂供给部,用于供给比制冷剂(R)沸点高的高沸点制冷剂,并由制冷剂(R)冻结到保护电阻体内的内部空间(S); 以及真空绝热容器,用于至少容纳制冷剂循环流路,超导线圈和保护电阻。