{"id":168805,"date":"2024-04-27T15:28:09","date_gmt":"2024-04-27T15:28:09","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/%e5%b0%8e%e9%9b%bb%e6%99%82%e9%96%93%e9%a0%98%e5%9f%9f%e5%8f%8d%e5%b0%84%e8%a8%88\/"},"modified":"2024-05-11T14:56:25","modified_gmt":"2024-05-11T14:56:25","slug":"%e5%b0%8e%e9%9b%bb%e6%99%82%e9%96%93%e9%a0%98%e5%9f%9f%e5%8f%8d%e5%b0%84%e8%a8%88","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/ja\/%e5%b0%8e%e9%9b%bb%e6%99%82%e9%96%93%e9%a0%98%e5%9f%9f%e5%8f%8d%e5%b0%84%e8%a8%88\/","title":{"rendered":"\u5c0e\u96fb\u6642\u9593\u9818\u57df\u53cd\u5c04\u8a08"},"content":{"rendered":"<p class=\"sidekick\">\u5c0e\u96fb\u6642\u9593\u9818\u57df\u53cd\u5c04\u8a08\uff08TDR\uff09\u306f\u3001\u30b1\u30fc\u30d6\u30eb\u306e\u77ed\u7d61\u3084\u65ad\u7dda\u3092\u691c\u51fa\u3059\u308b\u975e\u7834\u58ca\u8a3a\u65ad\u6280\u8853\u3002\u96fb\u6c17\u4fe1\u53f7\u306e\u53cd\u5c04\u3092\u5206\u6790\u3057\u3001\u7570\u5e38\u3092\u7279\u5b9a\u3057\u307e\u3059\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.electricity-magnetism.org\/wp-content\/uploads\/2024\/05\/\u5c0e\u96fb\u6642\u9593\u9818\u57df\u53cd\u5c04\u8a08.png\" alt=\"\u5c0e\u96fb\u6642\u9593\u9818\u57df\u53cd\u5c04\u8a08\"\/><\/p>\n<h2>\u5c0e\u96fb\u6642\u9593\u9818\u57df\u53cd\u5c04\u8a08\u306b\u3064\u3044\u3066<\/h2>\n<p>\u5c0e\u96fb\u6642\u9593\u9818\u57df\u53cd\u5c04\u8a08\uff08Time-Domain Reflectometry\u3001TDR\uff09\u306f\u3001\u96fb\u6c17\u30b1\u30fc\u30d6\u30eb\u3084\u4f1d\u9001\u30e9\u30a4\u30f3\u306e\u4e0d\u826f\u3092\u691c\u51fa\u3059\u308b\u305f\u3081\u306e\u5f37\u529b\u306a\u30c4\u30fc\u30eb\u3067\u3059\u3002\u3053\u306e\u6280\u8853\u306f\u3001\u30b1\u30fc\u30d6\u30eb\u306b\u96fb\u6c17\u4fe1\u53f7\u3092\u9001\u4fe1\u3057\u3001\u305d\u306e\u4fe1\u53f7\u304c\u3069\u306e\u3088\u3046\u306b\u53cd\u5c04\u3055\u308c\u308b\u304b\u3092\u89e3\u6790\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u3001\u77ed\u7d61\u3084\u65ad\u7dda\u3001\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u306e\u4e0d\u4e00\u81f4\u306a\u3069\u306e\u554f\u984c\u70b9\u3092\u7279\u5b9a\u3057\u307e\u3059\u3002<\/p>\n<h2>\u5c0e\u96fb\u6642\u9593\u9818\u57df\u53cd\u5c04\u8a08\u306e\u539f\u7406<\/h2>\n<p>\u5c0e\u96fb\u6642\u9593\u9818\u57df\u53cd\u5c04\u8a08\u306e\u539f\u7406\u306f\u975e\u5e38\u306b\u30b7\u30f3\u30d7\u30eb\u3067\u3059\u3002\u307e\u305a\u3001\u30c6\u30b9\u30c8\u3057\u305f\u3044\u30b1\u30fc\u30d6\u30eb\u306b\u77ed\u3044\u6642\u9593\u306e\u96fb\u6c17\u30d1\u30eb\u30b9\u3092\u9001\u4fe1\u3057\u307e\u3059\u3002\u3053\u306e\u30d1\u30eb\u30b9\u304c\u30b1\u30fc\u30d6\u30eb\u3092\u4f1d\u308f\u308a\u3001\u7570\u5e38\u304c\u3042\u308b\u7b87\u6240\u3067\u4e00\u90e8\u304c\u53cd\u5c04\u3055\u308c\u307e\u3059\u3002\u53cd\u5c04\u3055\u308c\u305f\u4fe1\u53f7\u306fTDR\u88c5\u7f6e\u306b\u623b\u308a\u3001\u5143\u306e\u4fe1\u53f7\u3068\u6bd4\u8f03\u3055\u308c\u307e\u3059\u3002\u7570\u5e38\u306e\u3042\u308b\u4f4d\u7f6e\u306f\u3001\u30d1\u30eb\u30b9\u306e\u9001\u4fe1\u304b\u3089\u53d7\u4fe1\u307e\u3067\u306e\u6642\u9593\u5dee\u304b\u3089\u8a08\u7b97\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u539f\u7406\u3092\u6570\u5f0f\u3067\u8868\u3059\u3068\u3001\u30b1\u30fc\u30d6\u30eb\u306e\u9577\u3055\uff08L\uff09\u3068\u5149\u901f\uff08c\uff09\u53ca\u3073\u30b1\u30fc\u30d6\u30eb\u306e\u4f1d\u9001\u901f\u5ea6\uff08v\uff09\u3092\u7528\u3044\u3066\u6b21\u306e\u3088\u3046\u306b\u8868\u3055\u308c\u307e\u3059\u3002<\/p>\n<ul>\n<li>L = c * (\u0394t \/ 2) * (1\/v)<\/li>\n<\/ul>\n<p>\u3053\u3053\u3067\u0394t\u306f\u30d1\u30eb\u30b9\u306e\u9001\u51fa\u6642\u523b\u3068\u53cd\u5c04\u30d1\u30eb\u30b9\u306e\u5230\u7740\u6642\u523b\u306e\u5dee\u3092\u8868\u3057\u3001\u30b1\u30fc\u30d6\u30eb\u306e\u4f1d\u9001\u901f\u5ea6\u306f\u901a\u5e38\u3001\u5149\u901f\u306e\u7d042\/3\uff08\u305f\u3068\u3048\u3070\u3001\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u3067\u306f\uff09\u3067\u3059\u3002<\/p>\n<h2>\u5c0e\u96fb\u6642\u9593\u9818\u57df\u53cd\u5c04\u8a08\u306e\u5fdc\u7528<\/h2>\n<p>TDR\u306f\u3001\u30b1\u30fc\u30d6\u30eb\u306e\u54c1\u8cea\u4fdd\u8a3c\u3084\u8a2d\u7f6e\u5f8c\u306e\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u3001\u8a2d\u8a08\u6bb5\u968e\u3067\u306e\u7279\u6027\u8a55\u4fa1\u306a\u3069\u3001\u3055\u307e\u3056\u307e\u306a\u5834\u9762\u3067\u5229\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u7279\u306b\u3001\u6b21\u306e\u3088\u3046\u306a\u5fdc\u7528\u5206\u91ce\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ol>\n<li>\u96fb\u529b\u30b1\u30fc\u30d6\u30eb\u3084\u901a\u4fe1\u30b1\u30fc\u30d6\u30eb\u306e\u8a3a\u65ad\u3002<\/li>\n<li>\u571f\u58cc\u6c34\u5206\u306e\u6e2c\u5b9a\u3084\u5730\u4e0b\u306e\u7ba1\u8def\u63a2\u67fb\u3002<\/li>\n<li>\u822a\u7a7a\u5b87\u5b99\u5206\u91ce\u3067\u306e\u822a\u7a7a\u6a5f\u3084\u5b87\u5b99\u8239\u306e\u914d\u7dda\u30c6\u30b9\u30c8\u3002<\/li>\n<\/ol>\n<p>\u3053\u306e\u6280\u8853\u306f\u3001\u30b1\u30fc\u30d6\u30eb\u306b\u30a2\u30af\u30bb\u30b9\u3057\u306a\u304f\u3066\u3082\u7570\u5e38\u3092\u691c\u51fa\u3067\u304d\u308b\u305f\u3081\u3001\u975e\u5e38\u306b\u4fbf\u5229\u3067\u975e\u7834\u58ca\u7684\u306a\u624b\u6cd5\u3068\u8a00\u3048\u307e\u3059\u3002<\/p>\n<h2>\u5c0e\u96fb\u6642\u9593\u9818\u57df\u53cd\u5c04\u8a08\u306e\u9650\u754c<\/h2>\n<p>\u3057\u304b\u3057\u3001\u3059\u3079\u3066\u306e\u30b1\u30fc\u30d6\u30eb\u306e\u554f\u984c\u3092\u3053\u306e\u624b\u6cd5\u3067\u691c\u51fa\u3067\u304d\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u4f8b\u3048\u3070\u3001\u975e\u5e38\u306b\u77ed\u3044\u30b1\u30fc\u30d6\u30eb\u3084\u3001\u53cd\u5c04\u4fe1\u53f7\u304c\u5f31\u3059\u304e\u308b\u5834\u5408\u3001\u307e\u305f\u306f\u30b1\u30fc\u30d6\u30eb\u306e\u7279\u6027\u304c\u4e00\u5b9a\u3067\u306a\u3044\u5834\u5408\u306a\u3069\u306b\u306f\u3001\u6b63\u78ba\u306a\u8a3a\u65ad\u304c\u56f0\u96e3\u3068\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3055\u3089\u306b\u3001\u89e3\u6790\u3092\u884c\u3046\u6280\u8853\u8005\u306e\u5c02\u9580\u77e5\u8b58\u3082\u975e\u5e38\u306b\u91cd\u8981\u3067\u3042\u308a\u3001\u6a5f\u5668\u306e\u89e3\u6790\u80fd\u529b\u3068\u3068\u3082\u306b\u3001\u6280\u8853\u8005\u306e\u7d4c\u9a13\u304c\u8a3a\u65ad\u306e\u7cbe\u5ea6\u306b\u5927\u304d\u304f\u5f71\u97ff\u3057\u307e\u3059\u3002<\/p>\n<p>\u96fb\u6c17\u3068\u78c1\u6c17\u306e\u5206\u91ce\u306b\u304a\u3044\u3066\u3001\u5c0e\u96fb\u6642\u9593\u9818\u57df\u53cd\u5c04\u8a08\u306f\u3001\u305d\u306e\u512a\u308c\u305f\u8a3a\u65ad\u80fd\u529b\u3067\u5e83\u304f\u6d3b\u7528\u3055\u308c\u3066\u304a\u308a\u3001\u73fe\u4ee3\u306e\u5de5\u5b66\u6280\u8853\u306b\u304a\u3044\u3066\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u3066\u3044\u308b\u306e\u3067\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5c0e\u96fb\u6642\u9593\u9818\u57df\u53cd\u5c04\u8a08\uff08TDR\uff09\u306f\u3001\u30b1\u30fc\u30d6\u30eb\u306e\u77ed\u7d61\u3084\u65ad\u7dda\u3092\u691c\u51fa\u3059\u308b\u975e\u7834\u58ca\u8a3a\u65ad\u6280\u8853\u3002\u96fb\u6c17\u4fe1\u53f7\u306e\u53cd\u5c04\u3092\u5206\u6790\u3057\u3001\u7570\u5e38\u3092\u7279\u5b9a\u3057\u307e\u3059\u3002<\/p>\n","protected":false},"author":1,"featured_media":201901,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","footnotes":""},"categories":[90],"tags":[91],"class_list":["post-168805","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-90","tag-91","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"yoast_head":"<!-- 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