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Patent Agency Ranking
公开(公告)号：US11783968B2
公开(公告)日：2023-10-10
申请号：US17245863
申请日：2021-04-30
Inventor： Makoto Takayasu , Vyacheslav Solovyov
CPC classification number: H01B12/08 , H01B12/06 , H01B12/16 , H01B13/282
Abstract: A structure and method provide cables of high-temperature superconducting flat tape and/or filament wires, with a small bending diameter. A cable has a former having cross section that includes a rectangle having rounded ends (i.e. an obround), and the flat tape is wound around the surface of the former at an angle to minimize bending. The former surface may have raised helical ribs or lowered grooves to provide tape registration in multi-layer configurations. Tape may be wound from a spool onto the former under tension, and cut with a laser cutter to produce fine filaments immediately before winding. The former may be slit longitudinally to prevent loop eddy currents and reduce AC losses. The wound cable may be jacketed to provide a cable-in-conduit conductor (CICC), and coolant channels may be provided in the jacket or in the former.
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公开(公告)号：US20210208011A1
公开(公告)日：2021-07-08
申请号：US17075083
申请日：2020-10-20
Applicant: Massachusetts Institute of Technology
Inventor： Makoto Takayasu
Abstract: The present system and method allow for the detection and diagnosis of abrupt changes of a device operating condition using a sensor array disposed in the coolant where the device is located. The purpose of the sensor array is to identify, in real time, abrupt changes quickly and detect the location of the incident. It may be used, for example, for quench detection of superconducting cables and magnets. This system and method are not only limited to use with superconducting conductors such as magnets, power transmission cables, SMES, MRI, motors and generators, but could also be used for any electric devices disposed in liquid or gas. It can also be used for a liquid level meter. Further, this system and method are not limited to low temperature devices, but may also be used in room temperature or elevated higher temperature devices disposed in gas and/or liquid.
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公开(公告)号：US12050139B2
公开(公告)日：2024-07-30
申请号：US17075083
申请日：2020-10-20
Applicant: Massachusetts Institute of Technology
Inventor： Makoto Takayasu
CPC classification number: G01K13/006 , G01K5/04 , G01K5/28
Abstract: The present system and method allow for the detection and diagnosis of abrupt changes of a device operating condition using a sensor array disposed in the coolant where the device is located. The purpose of the sensor array is to identify, in real time, abrupt changes quickly and detect the location of the incident. It may be used, for example, for quench detection of superconducting cables and magnets. This system and method are not only limited to use with superconducting conductors such as magnets, power transmission cables, SMES, MRI, motors and generators, but could also be used for any electric devices disposed in liquid or gas. It can also be used for a liquid level meter. Further, this system and method are not limited to low temperature devices, but may also be used in room temperature or elevated higher temperature devices disposed in gas and/or liquid.
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4.发明授权公开(公告)号：US10571535B2
公开(公告)日：2020-02-25
申请号：US16012183
申请日：2018-06-19
Applicant: Massachusetts Institute of Technology
Inventor： Makoto Takayasu
Abstract: A novel system and method for detecting a quench of a superconducting conductor and detecting abnormal behavior of a superconducting conductor using acoustic sensor technology in the coolant of a superconducting cable and/or magnet is disclosed. This system and method is not only limited to use for superconductors, but also may be used for any device disposed in liquid and gas. Acoustic sensors are installed along a coolant space of a superconducting conductor and monitor coolant conditions. By monitoring acoustic changes, temperature changes or coolant flow disruption can be detected very quickly by an acoustic sensor array. By disposition of the acoustic sensor array in a coolant flow channel, the acoustic sensor system can quickly detect a local condition, such as the thermal status (temperature) of a superconducting cable and magnet with precise spatial resolution.
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5.发明申请公开(公告)号：US20180372818A1
公开(公告)日：2018-12-27
申请号：US16012183
申请日：2018-06-19
Applicant: Massachusetts Institute of Technology
Inventor： Makoto Takayasu
CPC classification number: G01R33/3804 , G01D5/3538 , G01N29/14 , G01N29/2418 , G01N2201/088 , G01N2291/106 , H01F6/02 , H01F6/04
Abstract: A novel system and method for detecting a quench of a superconducting conductor and detecting abnormal behavior of a superconducting conductor using acoustic sensor technology in the coolant of a superconducting cable and/or magnet is disclosed. This system and method is not only limited to use for superconductors, but also may be used for any device disposed in liquid and gas. Acoustic sensors are installed along a coolant space of a superconducting conductor and monitor coolant conditions. By monitoring acoustic changes, temperature changes or coolant flow disruption can be detected very quickly by an acoustic sensor array. By disposition of the acoustic sensor array in a coolant flow channel, the acoustic sensor system can quickly detect a local condition, such as the thermal status (temperature) of a superconducting cable and magnet with precise spatial resolution.
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