{"id":213085,"date":"2024-10-06T15:26:00","date_gmt":"2024-10-06T15:26:00","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/?p=213085"},"modified":"2024-10-06T15:26:00","modified_gmt":"2024-10-06T15:26:00","slug":"%ed%9a%8c%eb%a1%9c%ec%97%90%ec%84%9c-%ec%8b%a0%ed%98%b8-%ec%bb%a8%eb%94%94%ec%85%94%eb%84%88%eb%8a%94-%ec%96%b4%eb%96%bb%ea%b2%8c-%ec%9e%91%eb%8f%99%ed%95%98%eb%82%98%ec%9a%94","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/ko\/%ed%9a%8c%eb%a1%9c%ec%97%90%ec%84%9c-%ec%8b%a0%ed%98%b8-%ec%bb%a8%eb%94%94%ec%85%94%eb%84%88%eb%8a%94-%ec%96%b4%eb%96%bb%ea%b2%8c-%ec%9e%91%eb%8f%99%ed%95%98%eb%82%98%ec%9a%94\/","title":{"rendered":"\ud68c\ub85c\uc5d0\uc11c \uc2e0\ud638 \ucee8\ub514\uc154\ub108\ub294 \uc5b4\ub5bb\uac8c \uc791\ub3d9\ud558\ub098\uc694?"},"content":{"rendered":"<p class=\"sidekick\">\ud68c\ub85c\uc5d0\uc11c \uc2e0\ud638 \ucee8\ub514\uc154\ub108\ub294 \uc785\ub825 \uc2e0\ud638\ub97c \uc870\uc808\ud558\uace0, \uc99d\ud3ed\ud558\uba70, \ud544\ud130\ub9c1\ud558\uc5ec \uc2e0\ud638\uc758 \ud488\uc9c8\uc744 \uac1c\uc120\ud558\ub294 \ud575\uc2ec \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4.<\/p>\n<h2>\ud68c\ub85c\uc5d0\uc11c \uc2e0\ud638 \ucee8\ub514\uc154\ub108\ub294 \uc5b4\ub5bb\uac8c \uc791\ub3d9\ud558\ub098\uc694?<\/h2>\n<p>\uc2e0\ud638 \ucee8\ub514\uc154\ub108\ub294 \uc804\uae30 \ud68c\ub85c\uc5d0\uc11c \uc0ac\uc6a9\ub418\ub294 \uc7a5\uce58\ub85c, \uc785\ub825 \uc2e0\ud638\ub97c \uc6d0\ud558\ub294 \ud615\ud0dc\ub85c \ubcc0\ud658\ud558\uc5ec \ucd9c\ub825\ud558\ub294 \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4. \ub2e4\uc591\ud55c \uc694\uc18c\ub85c \uc778\ud574 \uc2e0\ud638\uac00 \uc65c\uace1\ub418\uac70\ub098 \uac04\uc12d\uc744 \ubc1b\uc744 \uc218 \uc788\ub294\ub370, \uc2e0\ud638 \ucee8\ub514\uc154\ub108\ub294 \uc774\ub7ec\ud55c \ubb38\uc81c\ub97c \ud574\uacb0\ud558\uc5ec \uc2e0\ud638\uc758 \ud488\uc9c8\uc744 \ud5a5\uc0c1\uc2dc\ud0b5\ub2c8\ub2e4.<\/p>\n<h2>\uc2e0\ud638 \ucee8\ub514\uc154\ub108\uc758 \uc791\ub3d9 \uc6d0\ub9ac<\/h2>\n<p>\uc2e0\ud638 \ucee8\ub514\uc154\ub108\ub294 \uc8fc\ub85c \ub2e4\uc74c\uacfc \uac19\uc740 \uc791\uc5c5\uc744 \ud1b5\ud574 \uc2e0\ud638\ub97c \uac1c\uc120\ud569\ub2c8\ub2e4.<\/p>\n<p><u1><\/p>\n<li>\ud544\ud130\ub9c1 (Filtering)<\/li>\n<li>\uc99d\ud3ed (Amplification)<\/li>\n<li>\ubcc0\ud658 (Conversion)<\/li>\n<li>\ube44\uad50 (Comparison)<\/li>\n<p><\/u1><\/p>\n<h2>\ud544\ud130\ub9c1<\/h2>\n<p>\ud544\ud130\ub9c1\uc740 \uc2e0\ud638\uc5d0\uc11c \ubd88\ud544\uc694\ud55c \uc7a1\uc74c\uc744 \uc81c\uac70\ud558\ub294 \uacfc\uc815\uc785\ub2c8\ub2e4. \uc2e0\ud638 \ucee8\ub514\uc154\ub108\ub294 \uc8fc\ud30c\uc218 \ub300\uc5ed \ud544\ud130(frequency range filter)\ub97c \uc0ac\uc6a9\ud558\uc5ec \uc6d0\ud558\ub294 \uc8fc\ud30c\uc218 \uc131\ubd84\ub9cc \ud1b5\uacfc\uc2dc\ud0a4\uace0 \ub098\uba38\uc9c0 \uc7a1\uc74c\uc740 \uac78\ub7ec\ub0c5\ub2c8\ub2e4. \uc800\uc5ed \ud1b5\uacfc \ud544\ud130(low-pass filter)\ub294 \ub0ae\uc740 \uc8fc\ud30c\uc218\ub97c \ud1b5\uacfc\uc2dc\ud0a4\uace0 \ub192\uc740 \uc8fc\ud30c\uc218\ub294 \ucc28\ub2e8\ud569\ub2c8\ub2e4. \ubc18\uba74, \uace0\uc5ed \ud1b5\uacfc \ud544\ud130(high-pass filter)\ub294 \ub192\uc740 \uc8fc\ud30c\uc218\ub97c \ud1b5\uacfc\uc2dc\ud0a4\uace0 \ub0ae\uc740 \uc8fc\ud30c\uc218\ub294 \ucc28\ub2e8\ud569\ub2c8\ub2e4.<\/p>\n<h2>\uc99d\ud3ed<\/h2>\n<p>\uc2e0\ud638 \uc99d\ud3ed\uc740 \uc785\ub825 \uc2e0\ud638\uc758 \uc138\uae30\ub97c \uc99d\uac00\uc2dc\ud0a4\ub294 \uacfc\uc815\uc785\ub2c8\ub2e4. \uc2e0\ud638\uac00 \ub108\ubb34 \uc57d\ud558\uba74 \ub2e4\uc74c \ub2e8\uc5d0\uc11c \uc81c\ub300\ub85c \ucc98\ub9ac\ub418\uc9c0 \uc54a\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub54c \uc2e0\ud638 \ucee8\ub514\uc154\ub108\uac00 \uc99d\ud3ed\uae30\ub97c \uc0ac\uc6a9\ud558\uc5ec \uc2e0\ud638\ub97c \uc801\uc808\ud55c \ud06c\uae30\ub85c \ud0a4\uc6cc\uc90d\ub2c8\ub2e4. \uc99d\ud3ed\uc758 \uc608\ub85c \uc624\ud37c\ub808\uc154\ub110 \uc570\ud504 (operational amplifier, \uc904\uc5ec\uc11c op-amp)\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<h2>\ubcc0\ud658<\/h2>\n<p>\ubcc0\ud658\uc740 \uc2e0\ud638\uc758 \ud615\ud0dc \ub610\ub294 \ud0c0\uc785\uc744 \ubcc0\uacbd\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4 \uc544\ub0a0\ub85c\uadf8 \uc2e0\ud638\ub97c \ub514\uc9c0\ud138 \uc2e0\ud638\ub85c \ubcc0\ud658\ud558\uac70\ub098 \uadf8 \ubc18\ub300\ub85c \ubcc0\ud658\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc544\ub0a0\ub85c\uadf8-\ub514\uc9c0\ud138 \ubcc0\ud658\uae30(Analog-to-Digital Converter, ADC)\uc640 \ub514\uc9c0\ud138-\uc544\ub0a0\ub85c\uadf8 \ubcc0\ud658\uae30(Digital-to-Analog Converter, DAC)\uac00 \uadf8 \uc608\uc785\ub2c8\ub2e4. ADC\ub294 \uc544\ub0a0\ub85c\uadf8 \uc2e0\ud638\ub97c \uc0d8\ud50c\ub9c1\ud558\uc5ec \ub514\uc9c0\ud138 \ucf54\ub4dc\ub85c \ubcc0\ud658\ud558\uace0, DAC\ub294 \ub514\uc9c0\ud138 \ub370\uc774\ud130\ub97c \uc544\ub0a0\ub85c\uadf8 \uc2e0\ud638\ub85c \ubcc0\ud658\ud569\ub2c8\ub2e4.<\/p>\n<h2>\ube44\uad50<\/h2>\n<p>\ube44\uad50\ub294 \ub450 \uc2e0\ud638\ub97c \ube44\uad50\ud558\uc5ec \uc6d0\ud558\ub294 \uc2e0\ud638\ub9cc\uc744 \uc120\ud0dd\ud558\uac70\ub098 \uc774\uc0c1 \uc2e0\ud638\ub97c \uac10\uc9c0\ud558\ub294 \uacfc\uc815\uc785\ub2c8\ub2e4. \ube44\uad50\uae30\ub294 \uc785\ub825 \uc2e0\ud638\uc640 \uae30\uc900 \uc2e0\ud638(reference signal)\ub97c \ube44\uad50\ud558\uc5ec \ucd9c\ub825 \uc2e0\ud638\ub97c \ub9cc\ub4ed\ub2c8\ub2e4. \uc774 \uacfc\uc815\uc5d0\uc11c \ud788\uc2a4\ud14c\ub9ac\uc2dc\uc2a4 (hysteresis)\ub77c\ub294 \uc6d0\ub9ac\ub97c \uc0ac\uc6a9\ud558\uc5ec \ub178\uc774\uc988\ub97c \uc904\uc774\uace0 \uc548\uc815\ub41c \uc2a4\uc704\uce6d \ub3d9\uc791\uc744 \uc5bb\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<h2>\uacb0\ub860<\/h2>\n<p>\uc2e0\ud638 \ucee8\ub514\uc154\ub108\ub294 \uc804\uae30 \ud68c\ub85c\uc5d0\uc11c \uc911\uc694\ud55c \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4. \ud544\ud130\ub9c1, \uc99d\ud3ed, \ubcc0\ud658, \ube44\uad50 \ub4f1\uc758 \uacfc\uc815\uc744 \ud1b5\ud574 \uc785\ub825 \uc2e0\ud638\ub97c \uc815\uc81c\ud558\uc5ec \uc2dc\uc2a4\ud15c\uc774 \uc62c\ubc14\ub974\uac8c \ub3d9\uc791\ud558\ub3c4\ub85d \ud569\ub2c8\ub2e4. \ub530\ub77c\uc11c \ub2e4\uc591\ud55c \uc804\uc790 \uae30\uae30\uc640 \uc2dc\uc2a4\ud15c\uc5d0\uc11c \uc2e0\ud638 \ucee8\ub514\uc154\ub108\ub294 \ud544\uc218\uc801\uc73c\ub85c \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\ud68c\ub85c\uc5d0\uc11c \uc2e0\ud638 \ucee8\ub514\uc154\ub108\ub294 \uc785\ub825 \uc2e0\ud638\ub97c \uc870\uc808\ud558\uace0, \uc99d\ud3ed\ud558\uba70, \ud544\ud130\ub9c1\ud558\uc5ec \uc2e0\ud638\uc758 \ud488\uc9c8\uc744 \uac1c\uc120\ud558\ub294 \ud575\uc2ec 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