{"id":209180,"date":"2024-03-21T14:06:28","date_gmt":"2024-03-21T14:06:28","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/%e3%83%95%e3%83%ac%e3%83%8d%e3%83%ab%e3%81%ae%e6%96%b9%e7%a8%8b%e5%bc%8f-%e8%a7%a3%e8%aa%ac%e3%80%81%e5%b0%8e%e5%87%ba%e3%80%81%e5%bf%9c%e7%94%a8\/"},"modified":"2024-05-17T15:08:27","modified_gmt":"2024-05-17T15:08:27","slug":"%e3%83%95%e3%83%ac%e3%83%8d%e3%83%ab%e3%81%ae%e6%96%b9%e7%a8%8b%e5%bc%8f-%e8%a7%a3%e8%aa%ac%e3%80%81%e5%b0%8e%e5%87%ba%e3%80%81%e5%bf%9c%e7%94%a8","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/ja\/%e3%83%95%e3%83%ac%e3%83%8d%e3%83%ab%e3%81%ae%e6%96%b9%e7%a8%8b%e5%bc%8f-%e8%a7%a3%e8%aa%ac%e3%80%81%e5%b0%8e%e5%87%ba%e3%80%81%e5%bf%9c%e7%94%a8\/","title":{"rendered":"\u30d5\u30ec\u30cd\u30eb\u306e\u65b9\u7a0b\u5f0f | \u89e3\u8aac\u3001\u5c0e\u51fa\u3001\u5fdc\u7528"},"content":{"rendered":"

\u30d5\u30ec\u30cd\u30eb\u306e\u65b9\u7a0b\u5f0f\u306f\u5149\u306e\u53cd\u5c04\u3068\u5c48\u6298\u3092\u89e3\u6790\u3059\u308b\u305f\u3081\u306e\u91cd\u8981\u306a\u65b9\u7a0b\u5f0f\u3067\u3001\u96fb\u78c1\u5834\u306e\u632f\u5e45\u5909\u5316\u3092\u793a\u3057\u3001\u5149\u5b66\u3084\u901a\u4fe1\u5de5\u5b66\u3001\u533b\u7642\u5206\u91ce\u3067\u5fdc\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u30d5\u30ec\u30cd\u30eb\u306e\u65b9\u7a0b\u5f0f | \u89e3\u8aac\u3001\u5c0e\u51fa\u3001\u5fdc\u7528<\/h2>\n

\u30d5\u30ec\u30cd\u30eb\u306e\u65b9\u7a0b\u5f0f\u306f\u3001\u96fb\u78c1\u6c17\u5b66\u306e\u5206\u91ce\u3067\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3059\u65b9\u7a0b\u5f0f\u306e\u4e00\u3064\u3067\u3059\u3002\u3053\u306e\u65b9\u7a0b\u5f0f\u306f\u3001\u5149\u306e\u53cd\u5c04\u3068\u5c48\u6298\u306e\u554f\u984c\u306b\u9069\u7528\u3055\u308c\u3001\u96fb\u5834\u3084\u78c1\u5834\u306e\u632f\u5e45\u304c\u5883\u754c\u3067\u3069\u306e\u3088\u3046\u306b\u5909\u5316\u3059\u308b\u304b\u3092\u793a\u3057\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u30d5\u30ec\u30cd\u30eb\u306e\u65b9\u7a0b\u5f0f\u306e\u89e3\u8aac\u3001\u5c0e\u51fa\u3001\u304a\u3088\u3073\u5b9f\u969b\u306e\u5fdc\u7528\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n

\u30d5\u30ec\u30cd\u30eb\u306e\u65b9\u7a0b\u5f0f\u3068\u306f\uff1f<\/h2>\n

\u30d5\u30ec\u30cd\u30eb\u306e\u65b9\u7a0b\u5f0f\u306f\u3001\u5165\u5c04\u5149\u304c\u7570\u306a\u308b\u5a92\u8cea\u306e\u5883\u754c\u306b\u5f53\u305f\u3063\u305f\u3068\u304d\u306e\u53cd\u5c04\u5149\u3068\u5c48\u6298\u5149\u306e\u6bd4\u7387\u3092\u793a\u3059\u5f0f\u3067\u3059\u3002\u5177\u4f53\u7684\u306b\u306f\u3001\u5165\u5c04\u89d2\u3068\u7570\u306a\u308b\u5a92\u8cea\u306e\u5c48\u6298\u7387\u3092\u7528\u3044\u3066\u3001\u53cd\u5c04\u304a\u3088\u3073\u5c48\u6298\u3059\u308b\u5149\u306e\u96fb\u5834\u30d9\u30af\u30c8\u30eb\u306e\u632f\u5e45\u3092\u8a08\u7b97\u3057\u307e\u3059\u3002\u3053\u306e\u65b9\u7a0b\u5f0f\u306f\u3001\u30d5\u30e9\u30f3\u30b9\u306e\u7269\u7406\u5b66\u8005\u30aa\u30fc\u30ae\u30e5\u30b9\u30bf\u30f3\u30fb\u30b8\u30e3\u30f3\u30fb\u30d5\u30ec\u30cd\u30eb\u306b\u3088\u3063\u3066\u767a\u898b\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n

\u30d5\u30ec\u30cd\u30eb\u306e\u65b9\u7a0b\u5f0f\u306e\u5c0e\u51fa<\/h2>\n

\u30d5\u30ec\u30cd\u30eb\u306e\u65b9\u7a0b\u5f0f\u3092\u5c0e\u51fa\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u5165\u5c04\u5149\u3001\u53cd\u5c04\u5149\u3001\u304a\u3088\u3073\u5c48\u6298\u5149\u306e\u96fb\u5834\u30d9\u30af\u30c8\u30eb\u3068\u78c1\u5834\u30d9\u30af\u30c8\u30eb\u304c\u9023\u7d9a\u3059\u308b\u5883\u754c\u6761\u4ef6\u3092\u4f7f\u3044\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u3001\u5782\u76f4\u504f\u5149\uff08S\u504f\u5149\uff09\u306e\u5834\u5408\u306e\u5c0e\u51fa\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n

1. **\u5165\u5c04\u5149\u3001\u53cd\u5c04\u5149\u3001\u5c48\u6298\u5149\u306e\u95a2\u4fc2\u5f0f**\\\\
\n \u5165\u5c04\u89d2\u3092 \\(\\theta_i\\)\u3001\u53cd\u5c04\u89d2\u3092 \\(\\theta_r\\)\u3001\u5c48\u6298\u89d2\u3092 \\(\\theta_t\\)\u3001\u5a92\u8cea1\u306e\u5c48\u6298\u7387\u3092 \\(n_1\\)\u3001\u5a92\u8cea2\u306e\u5c48\u6298\u7387\u3092 \\(n_2\\) \u3068\u3057\u307e\u3059\u3002<\/p>\n

\\[
\n n_1 \\sin \\theta_i = n_2 \\sin \\theta_t
\n \\]<\/p>\n

2. **\u96fb\u5834\u3068\u78c1\u5834\u306e\u5883\u754c\u6761\u4ef6**\\\\
\n \u96fb\u5834 \\(\\mathbf{E}\\) \u3068\u78c1\u5834 \\(\\mathbf{H}\\) \u306f\u3001\u5a92\u8cea\u306e\u5883\u754c\u3067\u9023\u7d9a\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306b\u57fa\u3065\u304d\u6b21\u306e\u65b9\u7a0b\u5f0f\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/p>\n

\\[
\n E_{i} + E_{r} = E_{t}
\n \\]<\/p>\n

3. **\u30d5\u30ec\u30cd\u30eb\u306e\u65b9\u7a0b\u5f0f**\\\\
\n S\u504f\u5149\u306e\u5834\u5408\u306e\u30d5\u30ec\u30cd\u30eb\u306e\u65b9\u7a0b\u5f0f\u306f\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n

\\[
\n r_s = \\frac{E_r}{E_i} = \\frac{n_1 \\cos \\theta_i – n_2 \\cos \\theta_t}{n_1 \\cos \\theta_i + n_2 \\cos \\theta_t}
\n \\]<\/p>\n

\u53cd\u5c04\u4fc2\u6570 \\(r_s\\) \u306f\u3001\u53cd\u5c04\u5149\u306e\u96fb\u5834\u30d9\u30af\u30c8\u30eb\u306e\u632f\u5e45 \\(E_r\\) \u3068\u5165\u5c04\u5149\u306e\u96fb\u5834\u30d9\u30af\u30c8\u30eb\u306e\u632f\u5e45 \\(E_i\\) \u306e\u6bd4\u7387\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n

\u30d5\u30ec\u30cd\u30eb\u306e\u65b9\u7a0b\u5f0f\u306e\u5fdc\u7528<\/h2>\n

\u30d5\u30ec\u30cd\u30eb\u306e\u65b9\u7a0b\u5f0f\u306f\u3001\u5149\u5b66\u3084\u901a\u4fe1\u5de5\u5b66\u3001\u3055\u3089\u306b\u306f\u533b\u7642\u5206\u91ce\u3067\u5e83\u304f\u5fdc\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u5149\u5b66\u30c7\u30d0\u30a4\u30b9<\/h3>\n

\u53cd\u5c04\u3084\u5c48\u6298\u306e\u7279\u6027\u3092\u5229\u7528\u3057\u3066\u3001\u30ec\u30f3\u30ba\u3084\u30d7\u30ea\u30ba\u30e0\u3001\u30ac\u30e9\u30b9\u306e\u30b3\u30fc\u30c6\u30a3\u30f3\u30b0\u306a\u3069\u304c\u8a2d\u8a08\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u53cd\u5c04\u9632\u6b62\u30b3\u30fc\u30c6\u30a3\u30f3\u30b0\u306f\u3001\u7279\u5b9a\u306e\u6ce2\u9577\u306e\u5149\u306e\u53cd\u5c04\u3092\u5927\u5e45\u306b\u6e1b\u5c11\u3055\u305b\u308b\u305f\u3081\u306b\u30d5\u30ec\u30cd\u30eb\u306e\u65b9\u7a0b\u5f0f\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n

\u901a\u4fe1\u5de5\u5b66<\/h3>\n

\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u901a\u4fe1\u306b\u304a\u3044\u3066\u3001\u30d5\u30ec\u30cd\u30eb\u306e\u65b9\u7a0b\u5f0f\u306f\u5149\u4fe1\u53f7\u304c\u30d5\u30a1\u30a4\u30d0\u30fc\u5185\u3067\u3069\u306e\u3088\u3046\u306b\u4f1d\u64ad\u3059\u308b\u304b\u3092\u7406\u89e3\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u5c48\u6298\u3068\u53cd\u5c04\u306e\u7279\u6027\u3092\u5229\u7528\u3057\u3066\u3001\u52b9\u7387\u7684\u306b\u30c7\u30fc\u30bf\u3092\u9001\u4fe1\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n

\u533b\u7642\u5206\u91ce<\/h3>\n

\u533b\u7642\u7528\u30a4\u30e1\u30fc\u30b8\u30f3\u30b0\u6280\u8853\u3001\u7279\u306b\u5185\u8996\u93e1\u3084\u5149\u5e72\u6e09\u65ad\u5c64\u64ae\u5f71\uff08OCT\uff09\u306a\u3069\u3067\u3001\u5149\u306e\u53cd\u5c04\u3068\u5c48\u6298\u306e\u7279\u6027\u3092\u7528\u3044\u3066\u9ad8\u89e3\u50cf\u5ea6\u306e\u753b\u50cf\u3092\u53d6\u5f97\u3059\u308b\u305f\u3081\u306b\u30d5\u30ec\u30cd\u30eb\u306e\u65b9\u7a0b\u5f0f\u304c\u6d3b\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u307e\u3068\u3081<\/h2>\n

\u30d5\u30ec\u30cd\u30eb\u306e\u65b9\u7a0b\u5f0f\u306f\u3001\u5149\u306e\u53cd\u5c04\u3068\u5c48\u6298\u306b\u95a2\u3059\u308b\u91cd\u8981\u306a\u30c4\u30fc\u30eb\u3067\u3042\u308a\u3001\u3055\u307e\u3056\u307e\u306a\u5206\u91ce\u3067\u5fdc\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u7406\u8ad6\u7684\u306a\u80cc\u666f\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u5149\u5b66\u30c7\u30d0\u30a4\u30b9\u306e\u8a2d\u8a08\u3084\u65b0\u3057\u3044\u6280\u8853\u306e\u958b\u767a\u306b\u5f79\u7acb\u3064\u3067\u3057\u3087\u3046\u3002\u4eca\u5f8c\u3082\u30d5\u30ec\u30cd\u30eb\u306e\u65b9\u7a0b\u5f0f\u3092\u57fa\u306b\u3057\u305f\u7814\u7a76\u3084\u5fdc\u7528\u304c\u9032\u3080\u3053\u3068\u304c\u671f\u5f85\u3055\u308c\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

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