{"id":38,"date":"2013-09-22T18:38:32","date_gmt":"2013-09-22T10:38:32","guid":{"rendered":"http:\/\/workshop.siliconforce.com\/?p=38"},"modified":"2014-04-08T14:14:53","modified_gmt":"2014-04-08T06:14:53","slug":"%e9%9f%b3%e9%9f%bf%e6%94%be%e5%a4%a7%e5%99%a8%e3%80%8c%e9%9b%bb%e6%b5%81%e8%81%b2%e3%80%8d%e7%9a%84%e6%88%90%e5%9b%a0-%e2%94%80%e2%94%80%e3%80%80%e7%ac%ac%e4%b8%80%e8%ac%9b-%e4%ba%a4%e6%b5%81","status":"publish","type":"post","link":"https:\/\/workshop.siliconforce.com\/?p=38","title":{"rendered":"\u97f3\u97ff\u653e\u5927\u5668\u300c\u96fb\u6d41\u8072\u300d\u7684\u6210\u56e0 \u2500\u2500\u3000(\u7b2c\u4e00\u8b1b) \u4ea4\u6d41\u554d\u8072 Humming"},"content":{"rendered":"<p>\u5982\u4f55\u770b\u601d\u92d2\u5de5\u4f5c\u5ba4\u7684\u6587\u7ae0\uff1a<\/p>\n<ul>\n<li>\u85cd\u8272\u5b57\u70ba\u6458\u8981\uff0c\u770b\u5b8c\u6c92\u8208\u8da3\u7684\u8a71\uff0c\u90a3\u5c31\u5225\u770b\u4e0b\u4e86\u53bb\u4e86\u3002<\/li>\n<li>\u7da0\u8272\u5b57\u662f\u6280\u8853\u5206\u6790\uff0c\u5c0d\u6b64\u6c92\u8208\u8da3\u7684\u53ef\u4ee5\u7565\u904e\uff0c\u7576\u7136\u66fe Sir \u5f88\u660e\u767d\u300c\u591a\u4e00\u689d\u516c\u5f0f\uff0c\u5c11\u4e00\u500b\u8b80\u8005\u300d\u9019\u500b\u9053\u7406\u3002<\/li>\n<li>\u82e5\u5c0d\u6587\u7ae0\u6709\u7591\u554f\u6216\u6307\u6b63\uff0c\u6b61\u8fce\u5728<a title=\"\u601d\u92d2\u5de5\u4f5c\u5ba4\" href=\"http:\/\/www.facebook.com\/siliconforceworkshop\">\u601d\u92d2\u5de5\u4f5c\u5ba4<\/a>\u7559\u8a00\u3002<\/li>\n<\/ul>\n<p><span style=\"color: blue;\">\u6458\u8981\uff1a<br \/>\n\u3000\u3000\u6709\u5f88\u591a\u670b\u53cb\u7d93\u5e38\u53d7\u5230\u653e\u5927\u5668\u7684\u300c\u96fb\u6d41\u8072\u300d\u56f0\u64fe\uff0c\u5927\u90e8\u4efd\u670b\u53cb\u90fd\u8a8d\u70ba\u96fb\u6d41\u8072\u662f\u56e0\u70ba\u63a5\u5730\u4e0d\u826f\u6240\u81f4\uff0c\u65bc\u662f\u4fbf\u52aa\u529b\u628a\u653e\u5927\u5668\u7684\u5916\u6bbc\u63a5\u5730\uff0c\u751a\u81f3\u628a\u6574\u500b\u653e\u5927\u5668\u7528\u91d1\u5c6c\u7f69\u5b50\u5c4f\u853d\uff0c\u4f46\u96fb\u6d41\u8072\u4f9d\u820a\uff0c\u82e6\u7121\u5c0d\u7b56&#8230;&#8230;<\/p>\n<p><span style=\"color: blue;\">\u5404\u4eba\u5c0d\u300c\u96fb\u6d41\u8072\u300d\u5b9a\u7fa9\u4e0d\u4e00\uff0c\u5148\u8981\u627e\u51fa\u4f60\u9047\u4e0a\u54ea\u4e00\u7a2e\u300c\u96fb\u6d41\u8072\u300d\u3002<\/p>\n<ul>\n<span style=\"color: blue;\">\t<\/p>\n<li>\u8d85\u904e\u4e00\u534a\u7684\u60c5\u6cc1\u4e0b\uff0c\u90fd\u4e0d\u662f\u63a5\u5730\u51fa\u4e86\u554f\u984c\u3002<\/li>\n<li>\u300c\u96fb\u6d41\u8072\u300d\u66f4\u52a0\u4e0d\u662f\u7531\u975c\u96fb\u5f15\u8d77\u3002<\/li>\n<li>\u4f46\u7d9c\u89c0\u4e0d\u540c\u670b\u53cb\u7684\u63cf\u8ff0\uff0c\u300c\u96fb\u6d41\u8072\u300d\u90fd\u662f\uff1a<\/li>\n<li>\u25cf \u9023\u7e8c\u4e0d\u65b7\u7684\u566a\u97f3<\/li>\n<li>\u25cf \u566a\u97f3\u7684\u97ff\u5ea6\u9817\u70ba\u7a69\u5b9a<\/li>\n<li>\u25cf \u901a\u5e38\u90fd\u662f\u4f4e\u983b\u566a\u97f3<\/li>\n<\/ul>\n<p><span style=\"color: blue;\">\u7d9c\u5408\u5404\u65b9\u670b\u53cb\u7684\u906d\u9047\uff0c\u300c\u96fb\u6d41\u8072\u300d\u53ef\u7c60\u7d71\u6b78\u7d0d\u70ba\u4ee5\u4e0b\u5e7e\u7a2e\u60c5\u6cc1\u5f15\u81f4\uff1a<br \/>\n<\/span><\/p>\n<ul><span style=\"color: blue;\"><\/p>\n<li>\u96fb\u6e90\u6f23\u6ce2\u566a\u97f3 (Ripple noise) \uff0c\u5373\u4ea4\u6d41\u554d\u8072 (Humming)<\/li>\n<li>\u611f\u61c9\u96dc\u8a0a (Pick-up noise) \u5305\u62ec\u4eba\u9ad4\u62fe\u6ce2\u96dc\u8a0a (Body pick-up)<\/li>\n<li>\u7dda\u8def\u677f\u8d70\u7dda (Layout) \u6216\u63a5\u5730\u4f48\u5c40 (Grounding topology) <\/li>\n<li>\u4e0d\u826f\u5730\u7dda\u566a\u97f3 (Ground noise) \u53ca\u8ff4\u5708\u63a5\u5730 (Ground loop)<\/li>\n<li>\u6a5f\u5167\u4f48\u7dda\u53ca\u5c4f\u853d\u7b56\u7565\u4e0d\u826f (Bad wiring and shielding strategy)<\/li>\n<\/ul>\n<p><\/span><\/p>\n<p>&nbsp;<\/p>\n<p><center><span style=\"font-size: 2em;\">\u7b2c\u4e00\u8b1b\uff1a\u4ea4\u6d41\u554d\u8072<\/span><\/center><BR>\u3000\u3000\u4ea4\u6d41\u554d\u8072\u7684\u6210\u56e0\u662f\u96fb\u6e90\u6ffe\u6ce2\u5668\u8a2d\u8a08\u4e0d\u7576\uff0c\u751a\u6216\u5077\u5de5\u6e1b\u6599\uff0c\u5c0e\u81f4\u5e02\u96fb\u7684\u4ea4\u6d41\u96fb\u8a0a\u865f\u6709\u4e00\u90e8\u4efd\u6e9c\u9032\u4e86\u653e\u5927\u5668\u3002\u9019\u7a2e\u96fb\u6d41\u8072\u7684\u7279\u8272\u662f\u983b\u7387\u5f88\u4f4e (\u5728\u9999\u6e2f\u662f100Hz)\uff0c\u5927\u90e8\u4efd\u60c5\u6cc1\u4e0b\u90fd\u5f88\u5fae\u5f31\uff0c\u8981\u628a\u8033\u6735\u8cbc\u8457\u63da\u8072\u5668\u624d\u807d\u5230\uff0c\u800c\u4e14\u5373\u4f7f\u628a\u97f3\u91cf\u8abf\u5230\u6700\u4f4e\uff0c\u566a\u97f3\u4f9d\u7136\u5b58\u5728\u3002<\/p>\n<table class=\"table_2\" vspace=0 hspace=10 align=left width=\"370px\" height=\"390px\" border=0 padding=0>\n<tr width=\"370px\" border=0 padding=0>\n<td width=\"370px\" border=0 padding=5><img alt=\"\u6ffe\u6ce2\u96fb\u5bb9 (\u6c34\u5858)\uff0c\u9664\u4e86\u5bb9\u91cf\u6108\u5927\u6108\u597d\u5916\uff0c\u5176\u7b49\u6548\u4e32\u806f\u96fb\u963b (ESR) \u4e5f\u662f\u6108\u5c0f\u6108\u597d\uff01\" width=360 height=360 align=left src=\"http:\/\/workshop.siliconforce.com\/img\/Audio_noise_001.jpg\" \/><br \/>\n\u6ffe\u6ce2\u96fb\u5bb9 (\u6c34\u5858)\uff0c\u9664\u4e86\u5bb9\u91cf\u6108\u5927\u6108\u597d\u5916\uff0c\u5176\u7b49\u6548\u4e32\u806f\u96fb\u963b (ESR) \u4e5f\u662f\u6108\u5c0f\u6108\u597d\uff01<\/td>\n<\/tr>\n<\/table>\n<p>\u3000\u3000\u4ee5\u66fe Sir \u7684\u7d93\u9a57\uff0c\u9019\u662f\u96fb\u6d41\u8072\u4e2d\u6700\u5e38\u898b\u7684\u4e00\u7a2e\u3002\u4e00\u822c\u60c5\u6cc1\u4e0b\u4e00\u4e9b\u5e73\u50f9\u7684\u5c71\u5be8\u653e\u5927\u5668\u8f03\u6613\u9047\u5230\u9019\u7a2e\u60c5\u6cc1\uff0c\u53cd\u800c DIY \u7684\u653e\u5927\u5668\u8f03\u5c11\u9047\u4e0a\u9019\u554f\u984c\uff0c\u70ba\u751a\u9ebc\u5462\uff1f\u56e0\u70ba\u9019\u7a2e\u96fb\u6d41\u8072\u6700\u666e\u904d\u7684\u6210\u56e0\u662f\u96fb\u6e90\u6ffe\u6ce2\u5668\u7528\u6599\u4e0d\u8db3\uff0c\u6ffe\u6ce2\u96fb\u5bb9\u5668\u7684\u5bb9\u91cf\u4e0d\u8db3\uff0c\u4e00\u4e9b\u5e73\u50f9\u7522\u54c1\u56e0\u70ba\u541d\u55c7\u65bc\u6602\u8cb4\u7684\u5927\u5bb9\u91cf\u96fb\u5bb9\u5668\uff08\u4fd7\u7a31\u6c34\u5858\uff09\uff0c\u6240\u4ee5\u6bd4 DIY \u653e\u5927\u5668\u66f4\u5bb9\u6613\u51fa\u73fe\u554f\u984c\uff08\u56e0\u70ba\u4e00\u822c\u4eba DIY \u90fd\u6703\u4e0d\u60dc\u5de5\u672c\uff09\u3002<\/p>\n<p>\u3000\u3000\u5982\u4f55\u89e3\u6c7a\u9019\u7a2e\u96fb\u6d41\u8072\uff1f\u90a3\u8981\u770b\u770b\u4f60\u7684\u653e\u5927\u5668\u662f\u4f7f\u7528\u5916\u7f6e\u9084\u662f\u5167\u7f6e\u8b8a\u58d3\u5668\uff08\u706b\u725b\uff09\uff0c\u5982\u679c\u662f\u4f7f\u7528\u5167\u7f6e\u8b8a\u58d3\u5668\uff0c\u60c5\u6cc1\u8f03\u70ba\u8907\u96dc\uff0c\u9700\u8981\u628a\u6c34\u5858\u63db\u4e0a\u66f4\u5927\u5bb9\u503c\u7684\u96fb\u5bb9\u5668\uff0c\u751a\u81f3\u589e\u52a0\u96fb\u5bb9\u5668\u7684\u6578\u76ee\uff0c\u6578\u53ea\u96fb\u5bb9\u5668\u4e26\u806f\u6642\u5176\u5bb9\u503c\u6703\u76f8\u52a0\uff0c\u4f46\u9019\u7a2e\u65b9\u6cd5\u6703\u53d7\u5230\u6a5f\u5167\u7a7a\u9593\u6240\u9650\uff0c\u9700\u8981\u96a8\u6a5f\u61c9\u8b8a\u3002<\/p>\n<p>\u3000\u3000\u7531\u65bc\u9019\u500b\u566a\u97f3\u7684\u983b\u7387\u5f88\u4f4e\uff08100Hz\uff09\uff0c\u800c\u4e14\u901a\u5e38\u90fd\u5f88\u8f15\u5fae\uff0c\u82e5\u78b0\u4e0a\u5c0f\u53e3\u5f91\u7684\u63da\u8072\u5668\uff0c\u9019\u4e9b\u5ec9\u50f9\u653e\u5927\u5668\u5f80\u5f80\u53ef\u4ee5\u77c7\u6df7\u904e\u95dc\uff0c\u4e0d\u904e\u60f3\u6aa2\u6e2c\u96fb\u6e90\u6f23\u6ce2\u566a\u97f3\uff0c\u6709\u4e00\u500b\u5f88\u7c21\u55ae\u7684\u65b9\u6cd5\uff0c\u53ea\u8981\u5728\u653e\u5927\u5668\u958b\u555f\u6642\u7528\u624b\u6478\u4e00\u6478\u4f4e\u983b\u55ae\u5143\u7684\u9707\u819c\uff0c\u82e5\u5728\u7121\u8a0a\u865f\u6216\u97f3\u91cf\u8abf\u5230\u6700\u4f4e\u6642\u4ecd\u611f\u53d7\u5230\u63da\u8072\u5668\u7684\u9707\u819c\u9707\u52d5\uff0c\u9019\u4fbf\u662f\u4e00\u500b\u5f88\u660e\u986f\u7684\u4ea4\u6d41\u554d\u8072\u7684\u8b49\u64da\u3002<\/p>\n<p>\u3000\u3000\u5982\u679c\u662f\u7528\u5916\u7f6e\u8b8a\u58d3\u5668\uff08\u4f8b\u5982\u4e00\u822c\u8ff7\u4f60\u653e\u5927\u5668\uff09\uff0c\u7576\u7136\u4ee5\u4e0a\u7684\u65b9\u6cd5\u90fd\u9069\u7528\uff0c\u4f46\u6709\u53e6\u4e00\u500b\u66f4\u7c21\u55ae\u7684\u505a\u6cd5\u3000\u2500\u2500\u3000\u63db\u4e0a\u4e00\u500b\u958b\u95dc\u5f0f\u96fb\u6e90\u8b8a\u58d3\u5668(SMPS) \uff0c\u554f\u984c\u4fbf\u6703\u8fce\u5203\u800c\u89e3\uff01<\/p>\n<p>\u3000\u3000\u5f88\u9a5a\u8a1d\u5427\uff01\u767c\u71d2\u53cb\u5c0d\u958b\u95dc\u96fb\u6e90\u90fd\u568f\u4e4b\u4ee5\u9f3b\uff0c\u66fe Sir \u7adf\u7136\u6559\u5927\u5bb6\u7528\u958b\u95dc\u96fb\u6e90\uff1f\u66fe Sir \u5728\u6232\u5f04\u5927\u5bb6\u55ce\uff1f\u66fe Sir \u4e26\u6c92\u6232\u5f04\u4f60\u5011\uff01\u9996\u5148\u958b\u95dc\u96fb\u6e90\u7684\u97f3\u8cea\u662f\u4e0d\u662f\u5f88\u5dee\uff0c\u5f80\u5f8c\u65e5\u5b50\u6709\u6a5f\u6703\u6211\u6703\u518d\u8ddf\u5927\u5bb6\u5206\u6790\uff0c\u4f46\u662f\u55ae\u5c31\u89e3\u6c7a\u4ea4\u6d41\u554d\u8072\uff0c\u958b\u95dc\u5f0f\u6e90\u8b8a\u58d3\u5668\u7684\u78ba\u6709\u7acb\u7aff\u898b\u5f71\u4e4b\u6548\u3002(\u7576\u7136\u4f7f\u7528\u958b\u95dc\u96fb\u6e90\u53ef\u80fd\u6703\u8a98\u767c\u53e6\u4e00\u554f\u984c\uff0c\u5f80\u5f8c\u6709\u6a5f\u6703\u518d\u8a73\u7d30\u63a2\u8a0e\u3002)<\/p>\n<p><font color=\"#008000\">\u539f\u7406\uff1a<br \/>\n\u3000\u3000\u6211\u5011\u7528\u7684\u5e02\u96fb\u70ba\u4ea4\u6d41\u96fb\uff0c\u9999\u6e2f\u5e02\u96fb\u7684\u983b\u7387\u662f 50Hz\uff0c\u7f8e\u3001\u65e5\u7b49\u5730\u5247\u70ba 60Hz\uff0c\u4f46\u662f\u653e\u5927\u5668\u5fc5\u9808\u4ee5\u76f4\u6d41\u96fb\u64cd\u4f5c\uff0c\u6240\u4ee5\u96fb\u6e90\u8b8a\u58d3\u5668\uff08\u706b\u725b\uff09\u9664\u4e86\u8ca0\u8cac\u628a 220V \u7684\u96fb\u58d3\u5347\uff0f\u964d\u81f3\u5408\u9069\u7684\u96fb\u58d3\u4e4b\u5916\uff0c\u9084\u64d4\u4efb\u8457\u628a\u4ea4\u6d41\u96fb\u8f49\u8b8a\u6210\u76f4\u6d41\u96fb\u7684\u89d2\u8272\uff0c\u9019\u500b\u904e\u7a0b\u53eb\u300c\u6574\u6d41\u300d\u3002\u5728\u653e\u5927\u5668\u5167\u6700\u5e38\u898b\u7684\u6574\u6d41\u65b9\u5f0f\u70ba\u300c\u6a4b\u5f0f\u6574\u6d41\u300d\uff0c\u6a4b\u5f0f\u6574\u6d41\u6703\u628a\u5e02\u96fb\u7684\u4ea4\u6d41\u96fb\u8b8a\u6210\u8b8a\u5316\u4e0d\u5b9a\u7684\u76f4\u6d41\u96fb\uff0c\u6280\u8853\u4e00\u9ede\u4f86\u8aaa\uff0c\u9019\u662f\u4e00\u500b\u5305\u542b\u8457 50Hz x 2 = 100Hz \u4ea4\u6d41\u8a0a\u865f\u7684\u76f4\u6d41\u96fb\u6e90\uff0c\u6211\u5011\u7a31\u4e4b\u4e4b\u70ba\u300c\u6f23\u6ce2\u300d\uff0c\u800c\u9019\u500b 100Hz \u7684\u6f23\u6ce2\u82e5\u672a\u80fd\u6e05\u9664\u6389\uff0c\u4fbf\u6703\u8b93\u5b83\u6e9c\u5230\u63da\u8072\u5668\uff0c\u5f62\u6210\u566a\u97f3\uff0c\u7531\u65bc\u9019\u4e9b\u6f23\u6ce2\u7684\u983b\u7387\u90fd\u5f88\u4f4e\uff0c\u6240\u4ee5\u9700\u8981\u5f88\u5927\u5bb9\u91cf\u7684\u6ffe\u6ce2\u96fb\u5bb9 (\u6c34\u5858) \u4f86\u628a\u5176\u5438\u6389\u3002<\/font><\/p>\n<p><font color=\"#008000\">\u3000\u3000\u70ba\u4f55\u958b\u95dc\u5f0f\u96fb\u6e90\u8b8a\u58d3\u5668\u53ef\u89e3\u6c7a\u4ea4\u6d41\u554d\u8072\uff1f\u56e0\u70ba\u958b\u95dc\u96fb\u6e90\u7684\u64cd\u4f5c\u983b\u7387\u4e26\u4e0d\u662f 50Hz \u6216 60Hz\uff0c\u800c\u662f\u52d5\u8f12\u904e\u5341\u842cHz\uff0c\u6108\u9ad8\u983b\u7684\u6f23\u6ce2\u6108\u6613\u88ab\u6c34\u5858\u5438\u6536 (\u4f46\u592a\u9ad8\u53c8\u53cd\u800c\u5438\u4e0d\u6389)\uff0c\u6cc1\u4e14\u5b83\u7684\u64cd\u4f5c\u983b\u7387\u9060\u8d85\u65bc\u8033\u6735\u53ca\u63da\u8072\u5668\u7684\u5de5\u4f5c\u7bc4\u570d\uff0c\u6240\u4ee5\u96fb\u6e90\u7684\u6f23\u6ce2\u566a\u97f3\u4e00\u4e0d\u80fd\u5728\u63da\u8072\u5668\u4e0a\u518d\u751f (\u983b\u7387\u592a\u9ad8)\uff0c\u4e8c\u66f4\u4e0d\u80fd\u88ab\u8033\u6735\u63a5\u6536\u518d\u50b3\u5230\u5927\u8166 (\u90fd\u662f\u983b\u7387\u592a\u9ad8)\uff0c\u90a3\u53c8\u4f55\u4f86\u566a\u97f3\uff1f<\/font><\/p>\n<p>\u5176\u4ed6\u6210\u56e0\uff1a<br \/>\n1. \u6ffe\u6ce2\u96fb\u5bb9\u5931\u6548\uff08\u4fd7\u7a31\u4e7e\u5858\uff09<br \/>\n\u3000\u3000\u7531\u65bc\u6ffe\u6ce2\u96fb\u5bb9\u6210\u672c\u9ad8\u3001\u9ad4\u7a4d\u5927\uff0c\u4e00\u822c\u60c5\u6cc1\u4e0b\u90fd\u4e0d\u6703\u9078\u7528\u8010\u9ad8\u6e29\u7684\u96fb\u5bb9\uff0c\u6240\u4ee5\u5728\u767c\u71b1\u91cf\u9ad8\u7684\u529f\u7387\u653e\u5927\u5668\u4e2d\uff0c\u6c34\u5858\u5f80\u5f80\u6703\u662f\u58fd\u547d\u8f03\u77ed\u7684\u96f6\u4ef6\u3002<\/p>\n<p>2. \u8f38\u51fa\u529f\u7387\u7ba1\u504f\u7f6e\u96fb\u6d41\u5931\u8abf<br \/>\n\u3000\u3000\u8f38\u51fa\u529f\u7387\u7ba1\u9700\u8981\u5728\u4e00\u5b9a\u7684\u504f\u7f6e\u96fb\u6d41\u4e0b\u64cd\u4f5c\uff0c\u82e5\u6b64\u96fb\u6d41\u503c\u56e0\u7a2e\u7a2e\u539f\u56e0\u589e\u52a0\u4e86\uff0c\u5c0e\u81f4\u653e\u5927\u5668\u7684\u975c\u614b\u96fb\u6d41\u4e0d\u5c0b\u5e38\u5730\u4e0a\u5347\uff0c\u4e5f\u6703\u589e\u52a0\u6c34\u5858\u7684\u8ca0\u8377\uff0c\u5f9e\u800c\u52a0\u5f37\u4e86\u4ea4\u6d41\u554d\u8072\u3002<\/p>\n<p>3. \u8a0a\u865f\u5730 (Signal ground) \u8207\u5927\u5730 (Earth) \u5373\u5730\u7dda\u63a5\u4e0a\u4e86\uff0c\u9019\u500b\u60c5\u6cc1\u6211\u5011\u6703\u5728 Ground loop \u90e8\u4efd\u8a73\u7d30\u5206\u6790\u3002<\/p>\n<p>4. \u8b8a\u58d3\u5668\u7684\u96fb\u78c1\u5e72\u64fe\uff0c\u9019\u500b\u60c5\u6cc1\u6703\u5728 Wiring and shielding \u90e8\u4efd\u8a73\u7d30\u5206\u6790\u3002<\/p>\n<p>\u5099\u8a3b\uff1a<\/p>\n<p>\u6ffe\u6ce2\u5668\u7684\u898f\u6a21\u96a8\u8457\u653e\u5927\u5668\u6d88\u8017\u7684\u96fb\u6d41\u91cf\u800c\u63d0\u5347\u3002<br \/>\n\u7532\u985e\u653e\u5927\u5668\u56e0\u9700\u8981\u9f90\u5927\u7684\u975c\u614b\u96fb\u6d41\uff0c\u56e0\u800c\u4ee4\u96fb\u6e90\u6f23\u6ce2\u566a\u97f3\u66f4\u6613\u88ab\u5bdf\u89ba\uff0c\u6240\u4ee5\u6ffe\u6ce2\u5668\u7684\u898f\u6a21\u5f80\u5f80\u5f88\u5927\u3002<br \/>\n\u96fb\u5bb9\u5668\u7684\u7b49\u6548\u4e32\u806f\u96fb\u963b (ESR) \u6108\u4f4e\uff0c\u5176\u6ffe\u6ce2\u6027\u80fd\u6108\u4f73\u3002<br \/>\n\u9664\u4e86\u4e26\u806f\u96fb\u5bb9\u5668\u4ee5\u589e\u52a0\u96fb\u91cf\u5bb9\uff0c\u4e5f\u53ef\u4ee5\u4e32\u806f\u96fb\u611f\u5668\u4f5c LC \u751a\u81f3 Pi \u5f62 (\u03c0) \u6ffe\u6ce2\uff0c\u4f46\u6210\u672c\u8f03\u9ad8\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3000\u25cf\u3000\u8d85\u904e\u4e00\u534a\u7684\u60c5\u6cc1\u4e0b\uff0c\u90fd\u4e0d\u662f\u63a5\u5730\u51fa\u4e86\u554f\u984c\u3002<br \/>\n\u3000\u25cf\u3000\u300c\u96fb\u6d41\u8072\u300d\u66f4\u52a0\u4e0d\u662f\u7531\u975c\u96fb\u5f15\u8d77\u3002<br \/>\n\u3000\u25cf\u3000\u4ea4\u6d41\u554d\u8072\u7684\u6210\u56e0\u662f\u96fb\u6e90\u6ffe\u6ce2\u5668\u8a2d\u8a08\u4e0d\u7576\uff0c\u751a\u6216\u5077\u5de5\u6e1b\u6599&#8230;&#8230;<\/p>\n","protected":false},"author":1,"featured_media":262,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[22],"tags":[29,27,25,28,31,32,33,26,30],"_links":{"self":[{"href":"https:\/\/workshop.siliconforce.com\/index.php?rest_route=\/wp\/v2\/posts\/38"}],"collection":[{"href":"https:\/\/workshop.siliconforce.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/workshop.siliconforce.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/workshop.siliconforce.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/workshop.siliconforce.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=38"}],"version-history":[{"count":27,"href":"https:\/\/workshop.siliconforce.com\/index.php?rest_route=\/wp\/v2\/posts\/38\/revisions"}],"predecessor-version":[{"id":158,"href":"https:\/\/workshop.siliconforce.com\/index.php?rest_route=\/wp\/v2\/posts\/38\/revisions\/158"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/workshop.siliconforce.com\/index.php?rest_route=\/wp\/v2\/media\/262"}],"wp:attachment":[{"href":"https:\/\/workshop.siliconforce.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=38"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/workshop.siliconforce.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=38"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/workshop.siliconforce.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=38"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}