{"id":146798,"date":"2024-04-27T12:43:24","date_gmt":"2024-04-27T12:43:24","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/%eb%a0%88%ec%9d%b4%ec%a0%80-%eb%8f%84%ed%94%8c%eb%9f%ac-%ec%9c%a0%ec%86%8d%ea%b3%84\/"},"modified":"2024-04-27T12:43:32","modified_gmt":"2024-04-27T12:43:32","slug":"%eb%a0%88%ec%9d%b4%ec%a0%80-%eb%8f%84%ed%94%8c%eb%9f%ac-%ec%9c%a0%ec%86%8d%ea%b3%84","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/ko\/%eb%a0%88%ec%9d%b4%ec%a0%80-%eb%8f%84%ed%94%8c%eb%9f%ac-%ec%9c%a0%ec%86%8d%ea%b3%84\/","title":{"rendered":"\ub808\uc774\uc800 \ub3c4\ud50c\ub7ec \uc720\uc18d\uacc4"},"content":{"rendered":"

\ub808\uc774\uc800 \ub3c4\ud50c\ub7ec \uc720\uc18d\uacc4(LDV)\ub294 \ub3c4\ud50c\ub7ec \ud6a8\uacfc\ub97c \ud65c\uc6a9\ud55c \ube44\uc811\ucd09\uc2dd \uc18d\ub3c4 \uce21\uc815 \uc7a5\uce58\ub85c, \uc720\uccb4\uc5ed\ud559, \uc758\ub8cc, \uacf5\ud559\uc5d0\uc11c \ub110\ub9ac \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n

\"\ub808\uc774\uc800<\/p>\n

\ub808\uc774\uc800 \ub3c4\ud50c\ub7ec \uc720\uc18d\uacc4\uc758 \uae30\ubcf8 \uac1c\ub150<\/h2>\n

\ub808\uc774\uc800 \ub3c4\ud50c\ub7ec \uc720\uc18d\uacc4(Laser Doppler Velocimetry, LDV)\ub294 \ubb3c\uccb4\ub098 \uc561\uccb4\uac00 \uc6c0\uc9c1\uc774\ub294 \uc18d\ub3c4\ub97c \uce21\uc815\ud558\ub294 \uc7a5\uce58\uc785\ub2c8\ub2e4. \uc774 \uae30\uc220\uc740 \ub3c4\ud50c\ub7ec \ud6a8\uacfc\ub97c \uc774\uc6a9\ud558\uc5ec \uc18d\ub3c4\ub97c \uce21\uc815\ud558\ub294\ub370, \ub3c4\ud50c\ub7ec \ud6a8\uacfc\ub294 \uad00\uce21\uc790\uc5d0\uac8c \ub2e4\uac00\uc624\uac70\ub098 \uba40\uc5b4\uc9c0\ub294 \ud30c\ub3d9\uc758 \uc8fc\ud30c\uc218\uac00 \ubcc0\ud654\ud558\ub294 \ud604\uc0c1\uc744 \ub9d0\ud569\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \uc18c\ubc29\ucc28\uc758 \uc0ac\uc774\ub80c \uc18c\ub9ac\uac00 \ub2e4\uac00\uc62c \ub54c\ub294 \ub192\uc740 \ud53c\uce58\ub85c \ub4e4\ub9ac\ub2e4\uac00 \uc9c0\ub098\uac00\uace0 \ub098\uba74 \ub0ae\uc740 \ud53c\uce58\ub85c \ub4e4\ub9bd\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ud604\uc0c1\uc774 \uc18c\ub9ac\ubfd0\ub9cc \uc544\ub2c8\ub77c \ube5b\uc5d0\uc11c\ub3c4 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc73c\uba70, \ub808\uc774\uc800 \ub3c4\ud50c\ub7ec \uc720\uc18d\uacc4\ub294 \ubc14\ub85c \uc774 \uc6d0\ub9ac\ub97c \uc774\uc6a9\ud569\ub2c8\ub2e4.<\/p>\n

\ub808\uc774\uc800 \ub3c4\ud50c\ub7ec \uc720\uc18d\uacc4\uc758 \uc6d0\ub9ac<\/h2>\n

\ub808\uc774\uc800 \ub3c4\ud50c\ub7ec \uc720\uc18d\uacc4\uc758 \uc791\ub3d9 \uc6d0\ub9ac\ub294 \ube44\uad50\uc801 \uac04\ub2e8\ud569\ub2c8\ub2e4. \uc7a5\uce58\ub294 \ub808\uc774\uc800 \uad11\uc744 \ubc1c\uc0b0\ud558\uba70, \uc774 \ub808\uc774\uc800\ub294 \uce21\uc815\ud558\uace0\uc790 \ud558\ub294 \ubb3c\uccb4\ub098 \uc720\uccb4\uc5d0 \uc788\ub2e4\uac00 \ubc18\uc0ac\ub418\uc5b4 \ub3cc\uc544\uc635\ub2c8\ub2e4. \ubc18\uc0ac\ub418\ub294 \uad11\uc758 \uc8fc\ud30c\uc218\ub294 \uc6c0\uc9c1\uc774\ub294 \ub300\uc0c1\uc758 \uc18d\ub3c4\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4. \ub300\uc0c1\uc774 \uad00\uce21\uc790(\uc720\uc18d\uacc4)\ub97c \ud5a5\ud574 \uc6c0\uc9c1\uc774\uba74 \uc8fc\ud30c\uc218\ub294 \uc99d\uac00\ud558\uace0(\uccad\uc0c9 \uc774\ub3d9), \uba40\uc5b4\uc9c0\uba74 \uc8fc\ud30c\uc218\ub294 \uac10\uc18c\ud569\ub2c8\ub2e4(\uc801\uc0c9 \uc774\ub3d9).<\/p>\n

\uc720\uc18d\uacc4\ub294 \uc774 \ubc18\uc0ac\ub41c \uad11\uc758 \uc8fc\ud30c\uc218 \ucc28\uc774\ub97c \uce21\uc815\ud558\uc5ec \ub300\uc0c1\uc758 \uc18d\ub3c4\ub97c \uc54c\uc544\ub0bc \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc218\ud559\uc801\uc73c\ub85c \uc774 \uad00\uacc4\ub294 \ub2e4\uc74c\uacfc \uac19\uc740 \uc2dd\uc73c\ub85c \ud45c\ud604\ub429\ub2c8\ub2e4:<\/p>\n

\n\\[ v = \\frac{\\Delta f \\times c}{2f_0 \\cos(\\theta)} \\]\n<\/p>\n

\uc5ec\uae30\uc11c v<\/i>\ub294 \ub300\uc0c1\uc758 \uc18d\ub3c4, \\Delta f<\/i>\ub294 \uad00\ucc30\ub41c \uc8fc\ud30c\uc218 \ubcc0\ud654, c<\/i>\ub294 \ube5b\uc758 \uc18d\ub3c4, f0<\/sub><\/i>\ub294 \ub808\uc774\uc800 \uad11\uc758 \uc6d0\ub798 \uc8fc\ud30c\uc218, \uadf8\ub9ac\uace0 \\theta<\/i>\ub294 \ub808\uc774\uc800 \uad11\uc758 \uc9c4\ud589 \ubc29\ud5a5\uacfc \ub300\uc0c1\uc758 \uc6b4\ub3d9 \ubc29\ud5a5 \uc0ac\uc774\uc758 \uac01\ub3c4\ub97c \ub098\ud0c0\ub0c5\ub2c8\ub2e4.<\/p>\n

\ub808\uc774\uc800 \ub3c4\ud50c\ub7ec \uc720\uc18d\uacc4\uc758 \uc751\uc6a9 \ubd84\uc57c<\/h2>\n
    \n
  • \uc720\uccb4\uc5ed\ud559: \uc720\uc18d\uacc4\ub294 \uad00 \ub0b4 \uc720\uccb4\uc758 \uc18d\ub3c4 \ubd84\ud3ec\ub97c \uc5f0\uad6c\ud558\ub294 \ub370 \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \ud30c\uc774\ud504 \ub77c\uc778\uc5d0\uc11c\uc758 \uc720\uccb4 \ud750\ub984\uc774\ub098, \ud558\ucc9c\uc5d0\uc11c\uc758 \ubb3c\uc758 \ud750\ub984 \uc18d\ub3c4\ub97c \uce21\uc815\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n
  • \uc758\ub8cc \ubd84\uc57c: \ud608\ub958 \uc18d\ub3c4 \uce21\uc815\uc5d0 \uc0ac\uc6a9\ub418\uc5b4 \uc2ec\ud608\uad00 \uc9c8\ud658\uc758 \uc9c4\ub2e8\uc5d0 \ub3c4\uc6c0\uc744 \uc90d\ub2c8\ub2e4.<\/li>\n
  • \uacf5\ud559 \uc5f0\uad6c: \ud48d\ub3d9 \uc2e4\ud5d8\uc5d0\uc11c \uacf5\uae30\ud750\ub984\uc758 \uc18d\ub3c4\ub97c \uce21\uc815\ud558\uac70\ub098, \ucc28\ub7c9 \ubc0f \ud56d\uacf5\uae30\uc758 \uc18d\ub3c4\ub97c \uce21\uc815\ud558\ub294 \ub370 \uc774\uc6a9\ub429\ub2c8\ub2e4.<\/li>\n<\/ul>\n

    \ub808\uc774\uc800 \ub3c4\ud50c\ub7ec \uc720\uc18d\uacc4\uc758 \uc7a5\uc810<\/h2>\n
      \n
    1. \ube44\uc811\ucd09\uc2dd \uce21\uc815: \ub300\uc0c1\uc5d0 \ubb3c\ub9ac\uc801\uc778 \uc811\ucd09\uc744 \ud558\uc9c0 \uc54a\uace0\ub3c4 \uce21\uc815\uc774 \uac00\ub2a5\ud574 \uc720\uccb4\ub098 \ubb3c\uccb4\uc5d0 \uc601\ud5a5\uc744 \uc8fc\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/li>\n
    2. \ub192\uc740 \uc815\ubc00\ub3c4: \ub9e4\uc6b0 \uc815\ud655\ud55c \uc18d\ub3c4 \uce21\uc815\uc774 \uac00\ub2a5\ud569\ub2c8\ub2e4.<\/li>\n
    3. \uad11\ubc94\uc704\ud55c \uc751\uc6a9: \uc561\uccb4\uc640 \uac00\uc2a4 \ubaa8\ub450\uc758 \uc18d\ub3c4\ub97c \uce21\uc815\ud560 \uc218 \uc788\uc5b4 \ub2e4\uc591\ud55c \ubd84\uc57c\uc5d0\uc11c \ud65c\uc6a9\ub429\ub2c8\ub2e4.<\/li>\n
    4. \uc2e4\uc2dc\uac04 \uce21\uc815: \uc720\uc18d\uacc4\ub97c \uc774\uc6a9\ud558\uba74 \uc2e4\uc2dc\uac04\uc73c\ub85c \ub370\uc774\ud130\ub97c \uc5bb\uc744 \uc218 \uc788\uc5b4 \uc989\uac01\uc801\uc778 \ubd84\uc11d\uc774 \uac00\ub2a5\ud569\ub2c8\ub2e4.<\/li>\n<\/ol>\n

      \ub808\uc774\uc800 \ub3c4\ud50c\ub7ec \uc720\uc18d\uacc4\ub294 \ud604\ub300 \uacfc\ud559\uacfc \uacf5\ud559\uc5d0\uc11c \uc911\uc694\ud55c \ub3c4\uad6c\uc774\uba70, \uc774\ub97c \ud1b5\ud574 \uc720\uccb4 \ud750\ub984\uc744 \uc774\ud574\ud558\uace0, \uc124\uacc4\ub97c \uac1c\uc120\ud558\uba70, \ub2e4\uc591\ud55c \uc0b0\uc5c5\uc5d0\uc11c \ucd5c\uc801\ud654\ub41c \uc6b4\uc601\uc744 \ub3c4\ubaa8\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc774\uc720\ub85c LDV\ub294 \uc5f0\uad6c \ubc0f \uc0b0\uc5c5 \ud604\uc7a5\uc5d0\uc11c \uad11\ubc94\uc704\ud558\uac8c \uc0ac\uc6a9\ub418\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"

      \ub808\uc774\uc800 \ub3c4\ud50c\ub7ec \uc720\uc18d\uacc4(LDV)\ub294 \ub3c4\ud50c\ub7ec \ud6a8\uacfc\ub97c \ud65c\uc6a9\ud55c \ube44\uc811\ucd09\uc2dd \uc18d\ub3c4 \uce21\uc815 \uc7a5\uce58\ub85c, \uc720\uccb4\uc5ed\ud559, \uc758\ub8cc, \uacf5\ud559\uc5d0\uc11c \ub110\ub9ac \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n","protected":false},"author":1,"featured_media":171062,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","footnotes":""},"categories":[88],"tags":[89],"class_list":["post-146798","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-88","tag-89","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"yoast_head":"\n\ub808\uc774\uc800 \ub3c4\ud50c\ub7ec \uc720\uc18d\uacc4 | \uc791\ub3d9 \ubc29\uc2dd, \uc751\uc6a9 \ud504\ub85c\uadf8\ub7a8 \ubc0f \uc7a5\uc810<\/title>\n<meta name=\"description\" content=\"\ub808\uc774\uc800 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