PASSIVE QUENCH DETECTION METHOD OF SUPERCONDUCTING MAGNET
PROBLEM TO BE SOLVED: To detect quench phenomenon of a superconducting magnet accurately in the early stage.SOLUTION: In order to detect quench of a superconducting magnet consisting of a series connection of superconducting coils (L1, L2), a passive quench detection method includes first (N-1) lead...
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| creator | KOMAGOME TOSHIHIRO TAMADA NORIJI |
| description | PROBLEM TO BE SOLVED: To detect quench phenomenon of a superconducting magnet accurately in the early stage.SOLUTION: In order to detect quench of a superconducting magnet consisting of a series connection of superconducting coils (L1, L2), a passive quench detection method includes first (N-1) leads (13) connected with joints between the superconducting coils, a second lead (14) connected between reference resistors, a voltage detecting section (16) provided between the first and second leads, and a detecting section (5) for determining that quench is detected when the absolute value of the detection value from the voltage detecting section goes above a threshold Vref. The detection value in the voltage detecting section is set substantially zero in the normal state where quench phenomenon is not occurring.
【課題】超電導マグネットにおいてクエンチ現象を早期且つ精度よく検出する。【解決手段】本発明に係るパッシブ・クエンチ検出方法は、超電導コイル（Ｌ１，Ｌ２）が直列接続されてなる超電導マグネットのクエンチを検出するために、超電導コイル間の接続点に接続された（Ｎ−１）本の第１のリード（１３）と、リファレンス抵抗間に接続された第２のリード（１４）と、第１のリード及び第２のリード間に設けられた電圧検出部（１６）と、該電圧検出部の検出値の絶対値が閾値Ｖｒｅｆ以上になった場合にクエンチを検出したと判定する検出部（５）とを備えており、クエンチ現象が発生していない正常状態において電圧検出部の検出値が略ゼロになるように設定されていることを特徴とする。【選択図】図３ |
| format | Patent |
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【課題】超電導マグネットにおいてクエンチ現象を早期且つ精度よく検出する。【解決手段】本発明に係るパッシブ・クエンチ検出方法は、超電導コイル（Ｌ１，Ｌ２）が直列接続されてなる超電導マグネットのクエンチを検出するために、超電導コイル間の接続点に接続された（Ｎ−１）本の第１のリード（１３）と、リファレンス抵抗間に接続された第２のリード（１４）と、第１のリード及び第２のリード間に設けられた電圧検出部（１６）と、該電圧検出部の検出値の絶対値が閾値Ｖｒｅｆ以上になった場合にクエンチを検出したと判定する検出部（５）とを備えており、クエンチ現象が発生していない正常状態において電圧検出部の検出値が略ゼロになるように設定されていることを特徴とする。【選択図】図３</description><language>eng ; jpn</language><subject>BASIC ELECTRIC ELEMENTS ; ELECTRICITY ; INDUCTANCES ; MAGNETS ; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES ; TRANSFORMERS</subject><creationdate>2015</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20150413&DB=EPODOC&CC=JP&NR=2015070118A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20150413&DB=EPODOC&CC=JP&NR=2015070118A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KOMAGOME TOSHIHIRO</creatorcontrib><creatorcontrib>TAMADA NORIJI</creatorcontrib><title>PASSIVE QUENCH DETECTION METHOD OF SUPERCONDUCTING MAGNET</title><description>PROBLEM TO BE SOLVED: To detect quench phenomenon of a superconducting magnet accurately in the early stage.SOLUTION: In order to detect quench of a superconducting magnet consisting of a series connection of superconducting coils (L1, L2), a passive quench detection method includes first (N-1) leads (13) connected with joints between the superconducting coils, a second lead (14) connected between reference resistors, a voltage detecting section (16) provided between the first and second leads, and a detecting section (5) for determining that quench is detected when the absolute value of the detection value from the voltage detecting section goes above a threshold Vref. The detection value in the voltage detecting section is set substantially zero in the normal state where quench phenomenon is not occurring.
【課題】超電導マグネットにおいてクエンチ現象を早期且つ精度よく検出する。【解決手段】本発明に係るパッシブ・クエンチ検出方法は、超電導コイル（Ｌ１，Ｌ２）が直列接続されてなる超電導マグネットのクエンチを検出するために、超電導コイル間の接続点に接続された（Ｎ−１）本の第１のリード（１３）と、リファレンス抵抗間に接続された第２のリード（１４）と、第１のリード及び第２のリード間に設けられた電圧検出部（１６）と、該電圧検出部の検出値の絶対値が閾値Ｖｒｅｆ以上になった場合にクエンチを検出したと判定する検出部（５）とを備えており、クエンチ現象が発生していない正常状態において電圧検出部の検出値が略ゼロになるように設定されていることを特徴とする。【選択図】図３</description><subject>BASIC ELECTRIC ELEMENTS</subject><subject>ELECTRICITY</subject><subject>INDUCTANCES</subject><subject>MAGNETS</subject><subject>SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES</subject><subject>TRANSFORMERS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2015</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLAMcAwO9gxzVQgMdfVz9lBwcQ1xdQ7x9PdT8HUN8fB3UfB3UwgODXANcvb3cwkFyvi5K_g6uvu5hvAwsKYl5hSn8kJpbgYlN9cQZw_d1IL8-NTigsTk1LzUknivACMDQ1MDcwNDQwtHY6IUAQDx5ilT</recordid><startdate>20150413</startdate><enddate>20150413</enddate><creator>KOMAGOME TOSHIHIRO</creator><creator>TAMADA NORIJI</creator><scope>EVB</scope></search><sort><creationdate>20150413</creationdate><title>PASSIVE QUENCH DETECTION METHOD OF SUPERCONDUCTING MAGNET</title><author>KOMAGOME TOSHIHIRO ; TAMADA NORIJI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2015070118A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; jpn</language><creationdate>2015</creationdate><topic>BASIC ELECTRIC ELEMENTS</topic><topic>ELECTRICITY</topic><topic>INDUCTANCES</topic><topic>MAGNETS</topic><topic>SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES</topic><topic>TRANSFORMERS</topic><toplevel>online_resources</toplevel><creatorcontrib>KOMAGOME TOSHIHIRO</creatorcontrib><creatorcontrib>TAMADA NORIJI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>KOMAGOME TOSHIHIRO</au><au>TAMADA NORIJI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>PASSIVE QUENCH DETECTION METHOD OF SUPERCONDUCTING MAGNET</title><date>2015-04-13</date><risdate>2015</risdate><abstract>PROBLEM TO BE SOLVED: To detect quench phenomenon of a superconducting magnet accurately in the early stage.SOLUTION: In order to detect quench of a superconducting magnet consisting of a series connection of superconducting coils (L1, L2), a passive quench detection method includes first (N-1) leads (13) connected with joints between the superconducting coils, a second lead (14) connected between reference resistors, a voltage detecting section (16) provided between the first and second leads, and a detecting section (5) for determining that quench is detected when the absolute value of the detection value from the voltage detecting section goes above a threshold Vref. The detection value in the voltage detecting section is set substantially zero in the normal state where quench phenomenon is not occurring.
【課題】超電導マグネットにおいてクエンチ現象を早期且つ精度よく検出する。【解決手段】本発明に係るパッシブ・クエンチ検出方法は、超電導コイル（Ｌ１，Ｌ２）が直列接続されてなる超電導マグネットのクエンチを検出するために、超電導コイル間の接続点に接続された（Ｎ−１）本の第１のリード（１３）と、リファレンス抵抗間に接続された第２のリード（１４）と、第１のリード及び第２のリード間に設けられた電圧検出部（１６）と、該電圧検出部の検出値の絶対値が閾値Ｖｒｅｆ以上になった場合にクエンチを検出したと判定する検出部（５）とを備えており、クエンチ現象が発生していない正常状態において電圧検出部の検出値が略ゼロになるように設定されていることを特徴とする。【選択図】図３</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | BASIC ELECTRIC ELEMENTS ELECTRICITY INDUCTANCES MAGNETS SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES TRANSFORMERS |
| title | PASSIVE QUENCH DETECTION METHOD OF SUPERCONDUCTING MAGNET |
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