{"id":9047,"date":"2023-04-28T01:34:03","date_gmt":"2023-04-27T16:34:03","guid":{"rendered":"https:\/\/www11.ieice.org\/cs\/ap\/wp\/?page_id=9047"},"modified":"2026-06-25T15:32:39","modified_gmt":"2026-06-25T06:32:39","slug":"single_knife_edge","status":"publish","type":"page","link":"https:\/\/www.ieice.org\/cs\/ap\/misc\/denpan-db\/prop_model_db\/model_list\/diffraction\/single_knife_edge\/","title":{"rendered":"\u30b7\u30f3\u30b0\u30eb\u30ca\u30a4\u30d5\u30a8\u30c3\u30b8"},"content":{"rendered":"
<\/div>

<\/path><\/svg><\/i> \"Loading\"<\/p>

<\/div>(since 2025\/12\/5)<\/p>\n\n\n\n

\u30e2\u30c7\u30eb\u306e\u8aac\u660e<\/h3>\n\n\n
\n
\"\"
\u56f3\uff11\u3000\u30b7\u30f3\u30b0\u30eb\u30ca\u30a4\u30d5\u30a8\u30c3\u30b8<\/span><\/figcaption><\/figure><\/div>\n\n\n

\u3000\u56f31\u306e\u3088\u3046\u306b\uff0c\u9001\u53d7\u4fe1\u70b9\u9593\u306b\u5c71\u5cb3\u306a\u3069\u306e\u969c\u5bb3\u7269\u304c\u3042\u308a\uff0c\u4f1d\u642c\u65b9\u5411\u306b\u76f4\u89d2\u3067\u7d19\u9762\u306b\u5782\u76f4\u65b9\u5411\u306e\u969c\u5bb3\u7269\u9577\u3055\u304c\u7121\u9650\u3067\u3042\u308b\u5834\u5408\u306e\u56de\u6298\u640d\u5931\\(J(\\nu)\\)[dB]\u306f\uff0c<\/p>\n\n\n\n

\\(
{\\displaystyle
J( \\nu ) = -20 \\log \\left[ \\frac{ \\sqrt{ \\left\\{ 1 – C( \\nu ) – S( \\nu ) \\right\\}^2 + \\left\\{ C( \\nu ) – S( \\nu ) \\right\\}^2} }{ 2 } \\right]
\\tag{1}
}
\\)<\/p>\n\n\n\n

\u3067\u8868\u3055\u308c\u308b\uff0e\u305f\u3060\u3057\uff0c<\/p>\n\n\n\n

\\(
{\\displaystyle
C( \\nu ) = \\int_{ 0 }^{ \\nu } \\cos \\left( \\frac{ \\pi s^2 }{ 2 } \\right) {\\rm d} s
\\tag{2}
}
\\)<\/p>\n\n\n\n

\\(
{\\displaystyle
S( \\nu ) = \\int_{ 0 }^{ \\nu } \\sin \\left( \\frac{ \\pi s^2 }{ 2 } \\right) {\\rm d} s
\\tag{3}
}
\\)<\/p>\n\n\n\n

\\(
{\\displaystyle
\\nu = h \\sqrt{ \\frac{ 2 }{ \\lambda } \\left( \\frac{ 1 }{ d_1 } + \\frac{ 1 }{ d_2 } \\right) }
\\tag{4}
}
\\)<\/p>\n\n\n\n

\u3067\u3042\u308a\uff0c\\(\\lambda\\)\u306f\u96fb\u6ce2\u306e\u6ce2\u9577[m]\uff0c\\(h\\)\u306f\u9802\u4e0a\u304c\u898b\u901a\u3057\u7dda\u4ee5\u4e0b\u306b\u3042\u308b\u5834\u5408\u3092\u8ca0\u3068\u3059\u308b\u969c\u5bb3\u7269\u9802\u4e0a\u3068\u9001\u53d7\u4fe1\u70b9\u898b\u901a\u3057\u7dda\u3068\u306e\u8ddd\u96e2[m]\uff0c\\(d_1\\)\uff0c\\(d_2\\)\u306f\u9001\u53d7\u4fe1\u70b9\u3068\u969c\u5bb3\u7269\u9802\u4e0a\u3068\u306e\u8ddd\u96e2[m]\u3067\u3042\u308b\uff0e\u5b9f\u7528\u4e0a\u306f\\(d_1\\)\uff0c\\(d_2\\)\u306f\u898b\u901a\u3057\u7dda\u4e0a\u306e\u969c\u5bb3\u7269\u4f4d\u7f6e\u307e\u3067\u306e\u8ddd\u96e2\u3067\u8fd1\u4f3c\u3055\u308c\u308b\u5834\u5408\u304c\u591a\u3044\uff0e\u307e\u305f\uff0c\\(\\nu\\)\u304c-0.78\u4ee5\u4e0a\u3067\u306f\u4ee5\u4e0b\u306e\u5f0f<\/p>\n\n\n\n

\\(
{\\displaystyle
J( \\nu ) = 6.9 + 20 \\log \\left\\{ \\sqrt{ ( \\nu – 0.1 )^2 + 1} + \\nu + 0.1 \\right\\} \\quad {\\rm [dB]}
\\tag{5}
}
\\)<\/p>\n\n\n\n

\u3067\u8fd1\u4f3c\u5024\u3092\u5f97\u308b\u3053\u3068\u304c\u3067\u304d\u308b\uff0e<\/p>\n\n\n\n

\u30d1\u30e9\u30e1\u30fc\u30bf<\/h3>\n\n\n\n
\u8a18\u53f7<\/td>\u30d1\u30e9\u30e1\u30fc\u30bf\u8aac\u660e\uff3b\u5358\u4f4d]<\/td>\u30d1\u30e9\u30e1\u30fc\u30bf\u7bc4\u56f2<\/td><\/tr>
\\(J(\\nu)\\)<\/td>\u56de\u6298\u640d\u5931\u3000[dB]<\/td>\uff0d<\/td><\/tr>
\\(h\\)<\/td>\u969c\u5bb3\u7269\u9802\u4e0a\u3068\u898b\u901a\u3057\u7dda\u3068\u306e\u8ddd\u96e2\u3000[m]<\/td>\uff0d<\/td><\/tr>
\\(\\lambda\\)<\/td>\u6ce2\u9577\u3000[m]<\/td>\uff0d<\/td><\/tr>
\\(d_1\\)<\/td>\u9001\u4fe1\u70b9\u304b\u3089\u969c\u5bb3\u7269\u9802\u4e0a\u307e\u3067\u306e\u8ddd\u96e2\u3000[m]<\/td>\uff0d<\/td><\/tr>
\\(d_2\\)<\/td>\u53d7\u4fe1\u70b9\u304b\u3089\u969c\u5bb3\u7269\u9802\u4e0a\u307e\u3067\u306e\u8ddd\u96e2\u3000[m]<\/td>\uff0d<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u8a08\u7b97\u4f8b<\/h3>\n\n\n
\n
\"\"
\u56f3\uff12\u3000\u30b7\u30f3\u30b0\u30eb\u30ca\u30a4\u30d5\u30a8\u30c3\u30b8\u306e\u8a08\u7b97\u4f8b\uff08\u5f0f(1)\u306e\u8a08\u7b97\u7d50\u679c\uff09<\/figcaption><\/figure><\/div>","protected":false},"excerpt":{"rendered":"

\u30e2\u30c7\u30eb\u306e\u8aac\u660e \u3000\u56f31\u306e\u3088\u3046\u306b\uff0c\u9001\u53d7\u4fe1\u70b9\u9593\u306b\u5c71\u5cb3\u306a\u3069\u306e\u969c\u5bb3\u7269\u304c\u3042\u308a\uff0c\u4f1d\u642c\u65b9\u5411\u306b\u76f4\u89d2\u3067\u7d19\u9762\u306b\u5782\u76f4\u65b9\u5411\u306e\u969c\u5bb3\u7269\u9577\u3055\u304c\u7121\u9650\u3067\u3042\u308b\u5834\u5408\u306e\u56de\u6298\u640d\u5931\\(J(\\nu)\\)[dB]\u306f\uff0c \\( {\\displaystyle J( \\nu ) […]<\/p>\n","protected":false},"author":5,"featured_media":0,"parent":9263,"menu_order":101,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-9047","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.ieice.org\/cs\/ap\/wp-json\/wp\/v2\/pages\/9047","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ieice.org\/cs\/ap\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.ieice.org\/cs\/ap\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.ieice.org\/cs\/ap\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ieice.org\/cs\/ap\/wp-json\/wp\/v2\/comments?post=9047"}],"version-history":[{"count":24,"href":"https:\/\/www.ieice.org\/cs\/ap\/wp-json\/wp\/v2\/pages\/9047\/revisions"}],"predecessor-version":[{"id":14845,"href":"https:\/\/www.ieice.org\/cs\/ap\/wp-json\/wp\/v2\/pages\/9047\/revisions\/14845"}],"up":[{"embeddable":true,"href":"https:\/\/www.ieice.org\/cs\/ap\/wp-json\/wp\/v2\/pages\/9263"}],"wp:attachment":[{"href":"https:\/\/www.ieice.org\/cs\/ap\/wp-json\/wp\/v2\/media?parent=9047"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}