{"id":148691,"date":"2024-04-27T17:06:05","date_gmt":"2024-04-27T17:06:05","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/%ec%84%9d%ec%98%81-%ea%b3%b5%ec%a7%84%ea%b8%b0\/"},"modified":"2024-04-27T17:06:05","modified_gmt":"2024-04-27T17:06:05","slug":"%ec%84%9d%ec%98%81-%ea%b3%b5%ec%a7%84%ea%b8%b0","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/ko\/%ec%84%9d%ec%98%81-%ea%b3%b5%ec%a7%84%ea%b8%b0\/","title":{"rendered":"\uc11d\uc601 \uacf5\uc9c4\uae30"},"content":{"rendered":"

\uc11d\uc601 \uacf5\uc9c4\uae30\uc758 \uc791\ub3d9 \uc6d0\ub9ac\uc640 \uc555\uc804 \ud6a8\uacfc\ub97c \ud1b5\ud55c \uc815\ubc00\ud55c \uc8fc\ud30c\uc218 \uc0dd\uc131 \ubc0f \uce21\uc815 \uae30\ub2a5, \ub2e4\uc591\ud55c \uc804\uc790\uae30\uae30\uc5d0\uc11c\uc758 \uc911\uc694\ud55c \uc5ed\ud560\uacfc \uc751\uc6a9\uc5d0 \ub300\ud574 \uc124\uba85\ud569\ub2c8\ub2e4.<\/p>\n

\"\uc11d\uc601<\/p>\n

\uc11d\uc601 \uacf5\uc9c4\uae30\uc758 \uc6d0\ub9ac\uc640 \uc751\uc6a9<\/h2>\n

\uc804\uc790\uae30\ud559\uc5d0\uc11c ‘\uc11d\uc601 \uacf5\uc9c4\uae30’\ub294 \ub9e4\uc6b0 \uc815\ubc00\ud55c \uc8fc\ud30c\uc218\ub97c \uc0dd\uc131\ud558\uac70\ub098 \uce21\uc815\ud560 \uc218 \uc788\ub294 \uc804\uc790 \ubd80\ud488\uc785\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc73c\ub85c \uc2dc\uacc4, \ub77c\ub514\uc624 \uc1a1\uc218\uc2e0\uae30, \ucef4\ud4e8\ud130\uc758 \uae30\ubcf8 \uc2dc\uac04 \uad00\ub9ac \uc7a5\uce58\ub85c \uc0ac\uc6a9\ub418\uace0 \uc788\ub294\ub370, \uc774 \uae30\uae30\uc758 \ud575\uc2ec\uc740 ‘\uc555\uc804 \ud6a8\uacfc’\ub77c\ub294 \ubb3c\ub9ac\uc801 \ud604\uc0c1\uc744 \ud65c\uc6a9\ud558\ub294 \uac83\uc785\ub2c8\ub2e4.<\/p>\n

\uc555\uc804 \ud6a8\uacfc\ub780 \ubb34\uc5c7\uc778\uac00?<\/h2>\n

\uc555\uc804 \ud6a8\uacfc\ub294 \uc77c\ubd80 \uacb0\uc815\uccb4\uac00 \uc555\ub825\uc744 \ubc1b\uc558\uc744 \ub54c \uc804\uae30\uc801 \uc804\ud558\ub97c \ubc1c\uc0dd\uc2dc\ud0a4\ub294 \uc131\uc9c8\uc744 \ub9d0\ud569\ub2c8\ub2e4. \ud2b9\ud788 \uc11d\uc601(\uc2e4\ub9ac\ucf58 \ub2e4\uc774\uc625\uc0ac\uc774\ub4dc, SiO2<\/sub>)\uc740 \uc555\uc804 \ud6a8\uacfc\uac00 \ub6f0\uc5b4\ub09c \uc7ac\ub8cc\ub85c \uc54c\ub824\uc838 \uc788\uc2b5\ub2c8\ub2e4. \uc11d\uc601 \uc18d\uc5d0 \uac00\ud574\uc9c0\ub294 \uc555\ub825\uc774\ub098 \uc778\uc7a5\uc5d0 \ub530\ub77c \uc804\uadf9\uc5d0 \uc804\ud558\uac00 \ucd95\uc801\ub418\uace0, \uc774\ub97c \uc804\uae30 \uc2e0\ud638\ub85c \ubcc0\ud658\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

\ubc18\ub300\ub85c, \uc11d\uc601 \uacb0\uc815\uc5d0 \uc804\uae30\uc7a5\uc744 \uac00\ud558\uba74 \ubb3c\ub9ac\uc801\uc73c\ub85c \uc9c4\ub3d9\ud558\uac8c \ub418\ub294\ub370, \uc774\ub7ec\ud55c \uc11d\uc601\uc758 \uc9c4\ub3d9\uc740 \ub9e4\uc6b0 \uc548\uc815\uc801\uc774\uace0 \uc77c\uc815\ud558\uc5ec \uc8fc\ud30c\uc218\uc758 \uae30\uc900\uc73c\ub85c \uc0ac\uc6a9\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uacf5\uc9c4 \uc8fc\ud30c\uc218\ub294 \uacb0\uc815\uccb4\uc758 \ud06c\uae30\uc640 \ubaa8\uc591\uc5d0 \ub530\ub77c \uacb0\uc815\ub418\uba70, \ud754\ud788 \uba87 \uba54\uac00\ud5e4\ub974\uce20(MHz)\uc5d0\uc11c \uc218\uc2ed \uba54\uac00\ud5e4\ub974\uce20 \ubc94\uc704 \ub0b4\uc5d0\uc11c \uc870\uc808\ub429\ub2c8\ub2e4.<\/p>\n

\uc11d\uc601 \uacf5\uc9c4\uae30\uc758 \uad6c\uc870<\/h2>\n

\uc11d\uc601 \uacf5\uc9c4\uae30\ub294 \uae30\ubcf8\uc801\uc73c\ub85c \uc587\uc740 \uc11d\uc601 \uacb0\uc815\ud310\uacfc \uadf8 \uc591\ucabd\uba74\uc5d0 \ubd99\uc5b4 \uc788\ub294 \uc804\uadf9\uc73c\ub85c \uad6c\uc131\ub429\ub2c8\ub2e4. \uc804\uadf9\uc5d0 \uc804\uae30 \uc2e0\ud638\ub97c \uac00\ud558\uba74 \uc11d\uc601 \uacb0\uc815\uc774 \uc9c4\ub3d9\ud558\uba70, \uc774 \uc9c4\ub3d9\uc740 \uc804\uae30 \uc2e0\ud638\ub85c \ub2e4\uc2dc \uc804\ud658\ub429\ub2c8\ub2e4. \uc774 \uacfc\uc815\uc5d0\uc11c \ubc1c\uc0dd\ud558\ub294 \uc9c4\ub3d9 \uc218\ub294 \ub9e4\uc6b0 \uc77c\uc815\ud558\uc5ec \uc2dc\uac04\uc774\ub098 \uc8fc\ud30c\uc218\ub97c \uce21\uc815\ud558\ub294 \ub370 \ucd5c\uc801\ud654\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

\uc11d\uc601 \uacb0\uc815\uc758 \uc9c4\ub3d9\uc740 \uc8fc\ubcc0 \ud658\uacbd, \ud2b9\ud788 \uc628\ub3c4\uc5d0 \uc601\ud5a5\uc744 \ubc1b\uc2b5\ub2c8\ub2e4. \uadf8\ub798\uc11c \uc11d\uc601 \uacf5\uc9c4\uae30\uc758 \uc815\ud655\ub3c4\ub97c \uc720\uc9c0\ud558\uae30 \uc704\ud574\uc11c\ub294 \uc628\ub3c4 \ubcf4\uc0c1 \ud68c\ub85c\ub098 \uc628\ub3c4 \uc81c\uc5b4 \uc7a5\uce58\uac00 \ud544\uc694\ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc7a5\uce58\ub97c \uc0ac\uc6a9\ud568\uc73c\ub85c\uc368 \uc628\ub3c4 \ubcc0\ud654\uc5d0\ub3c4 \ubd88\uad6c\ud558\uace0 \uacf5\uc9c4\uae30\uac00 \uc77c\uc815\ud55c \uc8fc\ud30c\uc218\ub97c \uc720\uc9c0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

\uc11d\uc601 \uacf5\uc9c4\uae30\uc758 \uc751\uc6a9<\/h2>\n

\uc11d\uc601 \uacf5\uc9c4\uae30\ub294 \uc815\ud655\ud55c \uc2dc\uac04\uc744 \uc720\uc9c0\ud574\uc57c \ud558\ub294 \uc2dc\uacc4\uc640 \uac19\uc740 \uae30\uae30\uc5d0\uc11c \ud575\uc2ec\uc801\uc778 \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4. \ub514\uc9c0\ud138 \uc2dc\uacc4\ub098 \uc2a4\ub9c8\ud2b8\ud3f0, \ucef4\ud4e8\ud130 \ub4f1\uc5d0\uc11c \uc2dc\uac04\uc744 \uce21\uc815\ud558\ub294 \uc8fc\uc694\ubd80\ud488\uc73c\ub85c \ud65c\uc6a9\ub420 \ubfd0\ub9cc \uc544\ub2c8\ub77c, GPS \uc218\uc2e0\uae30\uc640 \uac19\uc740 \uc815\ubc00 \uc704\uce58 \uce21\uc815 \uc7a5\ube44\uc5d0\uc11c\ub3c4 \uc911\uc694\ud558\uac8c \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n

\ubb34\uc120\ud1b5\uc2e0 \ubd84\uc57c\uc5d0\uc11c\ub3c4 \uc11d\uc601 \uacf5\uc9c4\uae30\ub294 \ub9e4\uc6b0 \uc911\uc694\ud55c \ubd80\ud488\uc785\ub2c8\ub2e4. \ubb34\uc120 \uc2e0\ud638\ub97c \uc815\ud655\ud55c \uc8fc\ud30c\uc218\ub85c \uc1a1\uc218\uc2e0\ud558\uae30 \uc704\ud574, \uacf5\uc9c4\uae30\ub294 \uc548\uc815\uc801\uc774\uace0 \uc815\ud655\ud55c \uc2dc\uadf8\ub110 \ubc1c\uc0dd\uae30\ub85c\uc368 \ud65c\uc6a9\ub429\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ud2b9\uc131\uc740 \ub77c\ub514\uc624, TV \ubc29\uc1a1, \ud734\ub300\uc804\ud654 \uae30\uc9c0\uad6d\uacfc \uac19\uc774 \uad11\ub300\uc5ed \uc1a1\uc218\uc2e0\uc744 \ud544\uc694\ub85c \ud558\ub294 \uacf3\uc5d0\uc11c \ud2b9\ud788 \uc911\uc694\ud569\ub2c8\ub2e4.<\/p>\n

\uc774\ucc98\ub7fc \uc11d\uc601 \uacf5\uc9c4\uae30\ub294 \ud604\ub300 \uc0ac\ud68c\uc5d0\uc11c \ub2e4\uc591\ud55c \uae30\uae30\uc640 \uc2dc\uc2a4\ud15c\uc774 \uc548\uc815\uc801\uc73c\ub85c \uc791\ub3d9\ud560 \uc218 \uc788\ub3c4\ub85d \uc9c0\uc6d0\ud558\ub294 \ubbf8\uc138\ud558\uc9c0\ub9cc \uc911\uc694\ud55c \ubd80\ud488\uc785\ub2c8\ub2e4. \uadf8 \uc815\ubc00\uc131\uacfc \uc548\uc815\uc131 \ub355\ubd84\uc5d0 \ub9ce\uc740 \uc804\uc790\uae30\uae30\uc758 \ud575\uc2ec\uc73c\ub85c \uaf3d\ud788\uba70, \uc55e\uc73c\ub85c\ub3c4 \ub354 \ub2e4\uc591\ud55c \uae30\uc220\uc5d0 \uc751\uc6a9\ub420 \uac00\ub2a5\uc131\uc744 \uac00\uc9c0\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

\uacf5\uc9c4\uae30\uc5d0\uc11c \ubc1c\uc0dd\ud558\ub294 \ubb38\uc81c\uc810\uacfc \ud574\uacb0\ucc45<\/h2>\n

\uc11d\uc601 \uacf5\uc9c4\uae30\ub294 \ud575\uc2ec\uc801\uc778 \uc7a5\ube44\uc9c0\ub9cc, \uc5ec\ub7ec \uc678\ubd80 \uc694\uc778\uc5d0 \uc758\ud574 \uc601\ud5a5\uc744 \ubc1b\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \uc8fc\ud30c\uc218 \ub4dc\ub9ac\ud504\ud2b8(frequency drift)\ub294 \uc2dc\uac04\uc774 \uc9c0\ub0a8\uc5d0 \ub530\ub77c \uacf5\uc9c4\uae30\uac00 \uc0dd\uc131\ud558\ub294 \uc8fc\ud30c\uc218\uac00 \ubcc0\ud560 \uc218 \uc788\ub294 \ud604\uc0c1\uc774\uba70, \uc774\ub294 \uc815\ubc00\ud55c \uce21\uc815\uacfc \uc2dc\uac04 \uc720\uc9c0\uc5d0 \ubb38\uc81c\ub97c \uc77c\uc73c\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub97c \ud574\uacb0\ud558\uae30 \uc704\ud574 \ub300\ubd80\ubd84\uc758 \uacf5\uc9c4\uae30\ub294 \uc628\ub3c4 \ubcf4\uc0c1 \ub610\ub294 \uc81c\uc5b4 \uae30\uc220\uc744 \ud1b5\ud574 \uc678\ubd80 \uc628\ub3c4 \ubcc0\ud654\uc5d0 \uac15\uc778\ud558\ub3c4\ub85d \uc124\uacc4\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

\ub610\ud55c, \ubb3c\ub9ac\uc801 \ucda9\uaca9\uc774\ub098 \uc9c4\ub3d9\uc5d0 \uc758\ud574 \uc11d\uc601 \uacb0\uc815\uc758 \uc9c4\ub3d9 \ubaa8\ub4dc\uac00 \ubcc0\ud560 \uc218 \uc788\uc73c\ubbc0\ub85c, \uacb0\uc815\uc744 \ubcf4\ud638\ud558\uace0 \uc774\ub7ec\ud55c \uc601\ud5a5\uc744 \ucd5c\uc18c\ud654\ud558\uae30 \uc704\ud55c \uace0\uc815 \ubc0f \ucf00\uc774\uc2f1 \uae30\uc220\ub3c4 \ubc1c\uc804\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uace0\uc804\uc801\uc778 \uc11d\uc601 \uacf5\uc9c4\uae30\uc758 \ud55c\uacc4\ub97c \uadf9\ubcf5\ud558\uae30 \uc704\ud574, \uac01\uc885 \uc7ac\ub8cc\uc758 \uac1c\uc120\uacfc \ubbf8\uc138 \uac00\uacf5 \uae30\uc220\uc774 \uc801\uc6a9\ub418\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub97c \ud1b5\ud574, \uc800\uc628 \ub610\ub294 \uadf9\ud55c \ud658\uacbd\uc5d0\uc11c\ub3c4 \uc0ac\uc6a9 \uac00\ub2a5\ud55c \uacf5\uc9c4\uae30\uac00 \uac1c\ubc1c\ub418\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

\ubbf8\ub798 \uc804\ub9dd<\/h2>\n

\uc11d\uc601 \uacf5\uc9c4\uae30\uc758 \uae30\uc220\uc740 \uc9c0\uc18d\uc801\uc73c\ub85c \ubc1c\uc804\ud558\uace0 \uc788\uace0, \uc774\ub294 IoT(Internet of Things)\uc640 \uac19\uc740 \uc0c8\ub85c\uc6b4 \uae30\uc220\uc5d0 \ud544\uc218\uc801\uc785\ub2c8\ub2e4. \ub354 \ub9ce\uc740 \uae30\uae30\ub4e4\uc774 \uc778\ud130\ub137\uc5d0 \uc5f0\uacb0\ub428\uc5d0 \ub530\ub77c, \uacf5\uc9c4\uae30\ub97c \ud1b5\ud55c \uc815\ud655\ud55c \ud0c0\uc774\ubc0d\uacfc \uc2e0\ud638 \uc870\uc728\uc774 \uc911\uc694\ud55c \uc694\uc18c\ub85c \ubd80\uac01\ub418\uace0 \uc788\uc2b5\ub2c8\ub2e4. \ub610\ud55c, 5G \ud1b5\uc2e0 \uae30\uc220\uc758 \ubc1c\uc804\uacfc \ud568\uaed8 \ub354 \ube60\ub974\uace0 \uc815\ud655\ud55c \ub370\uc774\ud130 \uc1a1\uc218\uc2e0\uc744 \uc704\ud55c \uace0\uc8fc\ud30c \uacf5\uc9c4\uae30\uc758 \uc5ed\ud560\uc774 \ucee4\uc9c8 \uac83\uc73c\ub85c \uc608\uc0c1\ub429\ub2c8\ub2e4.<\/p>\n

\uc6b0\uc8fc \ud0d0\uc0ac\uc640 \uac19\uc740 \ucca8\ub2e8 \ubd84\uc57c\uc5d0\uc11c\ub3c4, \uc11d\uc601 \uacf5\uc9c4\uae30\uc758 \uc815\ubc00\ud568\uc740 \uadc0\uc911\ud569\ub2c8\ub2e4. \uc6b0\uc8fc\uc120\uc774\ub098 \uc704\uc131\uc5d0\uc11c \uc138\ubc00\ud55c \ud56d\ubc95\uacfc \ud1b5\uc2e0\uc744 \uc704\ud574 \uc815\ud655\ud55c \uc2dc\uac04 \uce21\uc815\uc774 \ud544\uc694\ud558\uba70, \uc774\ub294 \uc11d\uc601 \uacf5\uc9c4\uae30\uc758 \ub192\uc740 \uc815\ubc00\ub3c4\uc640 \uc2e0\ub8b0\uc131\uc73c\ub85c \uac00\ub2a5\ud569\ub2c8\ub2e4.<\/p>\n

\uac01 \ubd84\uc57c\uc758 \uc5f0\uad6c \uac1c\ubc1c\uc744 \ud1b5\ud574, \ubbf8\ub798\uc5d0\ub294 \ub354 \uc791\uace0 \ud6a8\uc728\uc801\uc774\uba70 \uacac\uace0\ud55c \uc11d\uc601 \uacf5\uc9c4\uae30\uac00 \ud0c4\uc0dd\ud560 \uac83\uc73c\ub85c \uae30\ub300\ub429\ub2c8\ub2e4. \uc774\ub294 \uc0b0\uc5c5 \uc804\ubc18\uc758 \ud601\uc2e0\uc744 \uac00\uc838\uc624\uace0, \uc6b0\ub9ac \uc0dd\ud65c\uc744 \ub354\uc6b1 \ud48d\uc694\ub86d\uac8c \ub9cc\ub4e4 \uac83\uc785\ub2c8\ub2e4.<\/p>\n

\uc11d\uc601 \uacf5\uc9c4\uae30\uc758 \uc6d0\ub9ac\uc640 \uc751\uc6a9\uc744 \uc774\ud574\ud558\ub294 \uac83\uc740 \ud604\ub300 \uc804\uc790\uacf5\ud559\uc758 \uae30\ucd08\ub97c \uc54c\uc544\uac00\ub294 \ub370 \uc911\uc694\ud55c \ub2e8\uacc4\uc785\ub2c8\ub2e4. \uc774 \uc791\uc740 \ubd80\ud488\uc774 \uc5b4\ub5bb\uac8c \uc2dc\uac04\uacfc \uc8fc\ud30c\uc218\uc758 \uc815\ubc00\ud568\uc744 \uc720\uc9c0\ud558\ub294\uc9c0, \uadf8\ub9ac\uace0 \uc2e4\uc0dd\ud65c\uc5d0\uc11c \uc5b4\ub5bb\uac8c \ud65c\uc6a9\ub418\ub294\uc9c0 \uc54c\uc544\ubcf4\uba74, \uacfc\ud559\uacfc \uacf5\ud559\uc758 \uc0c1\ud638\uc791\uc6a9\uc774 \ud604\ub300 \uc0ac\ud68c\uc5d0 \ubbf8\uce58\ub294 \uc601\ud5a5\uc744 \ub354\uc6b1 \uae4a\uc774 \uc774\ud574\ud560 \uc218 \uc788\uc744 \uac83\uc785\ub2c8\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"

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