{"id":208875,"date":"2024-03-21T14:07:58","date_gmt":"2024-03-21T14:07:58","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/squids-%ea%b3%b5%ec%8b%9d-%ec%a0%95%ec%9d%98-%ea%b3%84%ec%82%b0-%eb%b0%8f-%ec%9d%91%ec%9a%a9\/"},"modified":"2024-05-15T11:34:19","modified_gmt":"2024-05-15T11:34:19","slug":"squids-%ea%b3%b5%ec%8b%9d-%ec%a0%95%ec%9d%98-%ea%b3%84%ec%82%b0-%eb%b0%8f-%ec%9d%91%ec%9a%a9","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/ko\/squids-%ea%b3%b5%ec%8b%9d-%ec%a0%95%ec%9d%98-%ea%b3%84%ec%82%b0-%eb%b0%8f-%ec%9d%91%ec%9a%a9\/","title":{"rendered":"SQUIDs \uacf5\uc2dd | \uc815\uc758, \uacc4\uc0b0 \ubc0f \uc751\uc6a9"},"content":{"rendered":"

SQUIDs\ub294 \ucd08\uc804\ub3c4\uccb4\ub97c \uc774\uc6a9\ud55c \uadf9\ub3c4\ub85c \ubbfc\uac10\ud55c \uc790\uae30\uc7a5 \uce21\uc815 \uc7a5\uce58\ub85c, \ub2e4\uc591\ud55c \uacfc\ud559\uc801 \ubc0f \uc758\ub8cc \ubd84\uc57c\uc5d0 \ud65c\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n

SQUIDs\uc758 \uae30\ubcf8 \uc774\ud574<\/h2>\n

SQUIDs (Superconducting Quantum Interference Devices)\ub294 \uadf9\ub3c4\ub85c \ubbfc\uac10\ud55c \uc790\uae30\uc7a5 \uce21\uc815\uc744 \uc704\ud55c \uc7a5\uce58\uc785\ub2c8\ub2e4. \ucd08\uc804\ub3c4 \ub8e8\ud504\uc5d0 \ub450 \uac1c\uc758 \uc870\uc149\uc2a8 \uc811\ud569\uc744 \ud3ec\ud568\ud558\ub294 \uc774 \uc7a5\uce58\ub294 \uc544\uc8fc \uc791\uc740 \uc790\uae30\uc7a5\uc758 \ubcc0\ud654\ub3c4 \uac10\uc9c0\ud560 \uc218 \uc788\ub294 \ub2a5\ub825\uc774 \ud0c1\uc6d4\ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ud2b9\uc131 \ub355\ubd84\uc5d0 SQUIDs\ub294 \uc758\ud559, \ucc9c\ubb38\ud559, \uc9c0\uc9c8\ud559 \ub4f1 \ub2e4\uc591\ud55c \ubd84\uc57c\uc5d0\uc11c \uc911\uc694\ud55c \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4.<\/p>\n

SQUIDs\uc758 \uc791\ub3d9 \uc6d0\ub9ac<\/h2>\n

SQUIDs\uc758 \ud575\uc2ec \uad6c\uc131 \uc694\uc18c\ub294 ‘\uc870\uc149\uc2a8 \uc811\ud569’\uc785\ub2c8\ub2e4. \uc870\uc149\uc2a8 \uc811\ud569\uc740 \ub450 \uac1c\uc758 \ucd08\uc804\ub3c4\uccb4\uac00 \uc587\uc740 \uc808\uc5f0\uccb4\ub97c \uc0ac\uc774\uc5d0 \ub450\uace0 \uc811\ucd09\ud558\ub294 \uad6c\uc870\ub85c, \uc774\ub97c \ud1b5\ud574 \ucd08\uc804\ub3c4 \uc804\ub958\uac00 \uc808\uc5f0\uccb4\ub97c ‘\ud130\ub110\ub9c1’ \ud558\uba74\uc11c \ud750\ub97c \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc0ac\uc6a9\ub418\ub294 \uae30\ubcf8 \uc6d0\ub9ac\ub294 \uc870\uc149\uc2a8 \ud6a8\uacfc\uc774\uba70, \uc774\ub294 \ub450 \ucd08\uc804\ub3c4\uccb4 \uc0ac\uc774\uc758 \uc704\uc0c1 \ucc28\uc774\uc5d0 \uc758\ud574 \uc804\ub958\uac00 \uc0dd\uc131\ub418\ub294 \ud604\uc0c1\uc744 \uc124\uba85\ud569\ub2c8\ub2e4.<\/p>\n

\uc870\uc149\uc2a8 \ud6a8\uacfc\uc758 \uc218\ud559\uc801 \ud45c\ud604\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\n

\\[ I = I_c \\sin(\\phi) \\]<\/pre>\n
\uc5ec\uae30\uc11c \\( I \\)\ub294 \uc804\ub958, \\( I_c \\)\ub294 \uc784\uacc4 \uc804\ub958 (\ucd5c\ub300 \uc804\ub958), \uadf8\ub9ac\uace0 \\( \\phi \\)\ub294 \ucd08\uc804\ub3c4\uccb4 \uac04\uc758 \uc704\uc0c1 \ucc28\uc774\ub97c \ub098\ud0c0\ub0c5\ub2c8\ub2e4.<\/p>\n
SQUIDs\uc758 \uac04\uc12d \ud328\ud134<\/h2>\n
SQUIDs\uc758 \ub2e4\ub978 \uc911\uc694\ud55c \ud2b9\uc131\uc740 \ub450 \uc870\uc149\uc2a8 \uc811\ud569\uc744 \ud1b5\uacfc\ud558\ub294 \uc804\ub958\uc758 \uac04\uc12d \ud328\ud134\uc785\ub2c8\ub2e4. \uc774 \uac04\uc12d \ud328\ud134\uc740 \uc8fc\ubcc0 \uc790\uae30\uc7a5\uc5d0 \ub530\ub77c \ubcc0\ud558\uba70, SQUIDs\ub294 \uc774 \ubcc0\ud654\ub97c \uce21\uc815\ud558\uc5ec \ub9e4\uc6b0 \ubbf8\uc138\ud55c \uc790\uae30\uc7a5\uc758 \ubcc0\ud654\ub3c4 \uac80\ucd9c\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
\\[ \\Delta\\phi = \\frac{2\\pi}{\\Phi_0} \\Delta\\Phi \\]<\/pre>\n
\uc5ec\uae30\uc11c \\( \\Delta\\phi \\)\ub294 \ub8e8\ud504\ub97c \ud1b5\ud55c \uc790\uae30 \ud50c\ub7ed\uc2a4\uc758 \ubcc0\ud654\uc5d0 \ub530\ub978 \uc704\uc0c1 \ucc28\uc774\uc758 \ubcc0\ud654, \\( \\Phi_0 \\)\ub294 \uc790\uae30 \ud50c\ub7ed\uc2a4 \uc591\uc790 (\ucd5c\uc18c \uc790\uae30 \ud50c\ub7ed\uc2a4 \ub2e8\uc704), \uadf8\ub9ac\uace0 \\( \\Delta\\Phi \\)\ub294 \ud50c\ub7ed\uc2a4\uc758 \ubcc0\ud654\ub7c9\uc744 \ub098\ud0c0\ub0c5\ub2c8\ub2e4.<\/p>\n
SQUIDs\uc758 \uc751\uc6a9 \ubd84\uc57c<\/h2>\n
SQUIDs\uc758 \ub180\ub77c\uc6b4 \uac10\ub3c4 \ub355\ubd84\uc5d0 \uc5ec\ub7ec \ubd84\uc57c\uc5d0\uc11c \uc751\uc6a9\ub418\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc758\ub8cc \ubd84\uc57c\uc5d0\uc11c\ub294 \ub1cc\ub098 \uc2ec\uc7a5\uc758 \ubbf8\uc138\ud55c \uc790\uae30\uc7a5 \ubcc0\ud654\ub97c \uce21\uc815\ud558\uc5ec \uc9c8\ubcd1\uc744 \uc9c4\ub2e8\ud558\ub294 \ub370 \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \uc774\uc678\uc5d0\ub3c4 \uc9c0\uc9c8 \ud0d0\uc0ac\uc5d0\uc11c \uc9c0\uad6c \ub0b4\ubd80\uc758 \uc790\uae30\uc7a5 \ubcc0\ud654\ub97c \ubd84\uc11d\ud558\uc5ec \uc720\uc6a9\ud55c \uad11\ubb3c \uc790\uc6d0\uc744 \ucc3e\ub294 \ub370\ub3c4 \ud070 \ub3c4\uc6c0\uc744 \uc90d\ub2c8\ub2e4.<\/p>\n
\ucc9c\ubb38\ud559 \ubd84\uc57c\uc5d0\uc11c\ub294 \uc6b0\uc8fc\uc758 \uba3c \uacf3\uc5d0\uc11c \uc624\ub294 \uc57d\ud55c \uc790\uae30\uc7a5\uc744 \uac10\uc9c0\ud558\uc5ec \uc0c8\ub85c\uc6b4 \ubcc4\uc774\ub098 \ud589\uc131\uc744 \ubc1c\uacac\ud558\ub294 \ub370 \uae30\uc5ec\ud558\uba70, \uacfc\ud559\uc790\ub4e4\uc774 \uc6b0\uc8fc\uc758 \uae30\uc6d0\uc5d0 \ub300\ud55c \uc774\ud574\ub97c \ub192\uc774\ub294 \ub370 \uc911\uc694\ud55c \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4.<\/p>\n
\uacb0\ub860<\/h2>\n
SQUIDs\ub294 \uadf8 \ubbf8\uc138\ud55c \uac10\ub3c4\uc640 \uc815\ud655\uc131\uc73c\ub85c \uc778\ud574 \uacfc\ud559\uacfc \uae30\uc220\uc758 \uc5ec\ub7ec \ubd84\uc57c\uc5d0\uc11c \uc911\uc694\ud55c \ub3c4\uad6c\ub85c \uc790\ub9ac\uc7a1\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \uc7a5\uce58\ub4e4\uc740 \uc55e\uc73c\ub85c\ub3c4 \ub9ce\uc740 \uae30\uc220\uc801 \uc9c4\ubcf4\uc640 \uacfc\ud559\uc801 \ubc1c\uacac\uc758 \uc5f4\uc1e0\uac00 \ub420 \uac83\uc785\ub2c8\ub2e4. \ucd08\uc804\ub3c4\uccb4 \uae30\uc220\uacfc \ubb3c\ub9ac\uc758 \ub354 \uae4a\uc740 \uc774\ud574\ub97c \ud1b5\ud574, \uc6b0\ub9ac\ub294 \uacc4\uc18d\ud574\uc11c \uc0c8\ub86d\uace0 \ud765\ubbf8\ub85c\uc6b4 \ubc29\ubc95\uc73c\ub85c \uc6b0\ub9ac \uc138\uacc4\uc640 \uc6b0\uc8fc\ub97c \ud0d0\uad6c\ud560 \uc218 \uc788\uac8c \ub420 \uac83\uc785\ub2c8\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"
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