{"id":1249,"date":"2018-11-04T12:32:06","date_gmt":"2018-11-04T12:32:06","guid":{"rendered":""},"modified":"2018-11-04T20:32:38","modified_gmt":"2018-11-04T12:32:38","slug":"%e5%bc%80%e5%85%b3%e7%94%b5%e6%ba%90emi%e5%ae%9e%e9%99%85%e6%95%b4%e6%94%b9%e7%bb%8f%e9%aa%8c%e5%a4%a7%e5%85%a8%28%e4%b8%80%ef%bc%89","status":"publish","type":"post","link":"http:\/\/www.szryc.com\/?p=1249","title":{"rendered":"\u5f00\u5173\u7535\u6e90EMI\u5b9e\u9645\u6574\u6539\u7ecf\u9a8c\u5927\u5168(\u4e00\uff09"},"content":{"rendered":"

EMC(Electromagnetic Compatibility)\u662f\u7535\u78c1\u517c\u5bb9\uff0c\u5b83\u5305\u62ecEMI(\u7535\u78c1\u9a9a\u6270)\u548cEMS\uff08\u7535\u78c1\u6297\u9a9a\u6270\uff09\u3002EMC\u5b9a\u4e49\u4e3a\uff1a\u8bbe\u5907\u6216\u7cfb\u7edf\u5728\u5176\u7535\u78c1\u73af\u5883\u4e2d\u80fd\u6b63\u5e38\u5de5\u4f5c\u4e14\u4e0d\u5bf9\u8be5\u73af\u5883\u4e2d\u7684\u4efb\u4f55\u8bbe\u5907\u7684\u4efb\u4f55\u4e8b\u7269\u6784\u6210\u4e0d\u80fd\u627f\u53d7\u7684\u7535\u78c1\u9a9a\u6270\u7684\u80fd\u529b\u3002EMC\u6574\u7684\u79f0\u547c\u4e3a\u7535\u78c1\u517c\u5bb9\u3002EMP\u662f\u6307\u7535\u78c1\u8109\u51b2\u3002<\/font>

\n

\n

\nEMC = EMI + EMS    EMI\uff1a\u96fb\u78c1\u5e72\u64fe     EMS\uff1a\u96fb\u78c1\u76f8\u5bb9\u6027 (\u514d\u75ab\u529b)<\/font>

\n

\n

\nEMI\u53ef\u5206\u4e3a\u4f20\u5bfcConduction\u53ca\u8f90\u5c04Radiation\u4e24\u90e8\u5206\uff0c<\/font>

\n

\n

\nConduction\u89c4\u8303\u4e00\u822c\u53ef\u5206\u4e3a: FCC Part 15J Class B\uff1bCISPR 22(EN55022, EN61000-3-2, EN61000-3-3) Class B\uff1b<\/font>

\n

\n

\n\u56fd\u6807IT\u7c7b\uff08GB9254\uff0cGB17625\uff09\u548cAV\u7c7b\uff08GB13837\uff0cGB17625\uff09\u3002<\/font>

\n

\n

\nFCC\u6d4b\u8bd5\u9891\u7387\u5728450K-30MHz\uff0cCISPR 22\u6d4b\u8bd5\u9891\u7387\u5728150K--30MHz\uff0cConduction\u53ef\u4ee5\u7528\u9891\u8c31\u5206\u6790\u4eea\u6d4b\u8bd5\uff0cRadiation\u5219\u5fc5\u987b\u5230\u4e13\u95e8\u7684\u5b9e\u9a8c\u5ba4\u6d4b\u8bd5\u3002<\/font>

\n

\n

\nEMI\u4e3a\u7535\u78c1\u5e72\u6270\uff0cEMI\u662fEMC\u5176\u4e2d\u7684\u4e00\u90e8\u5206\uff0cEMI(Electronic Magnetic Interference) \u7535\u78c1\u5e72\u6270\uff0c EMI\u5305\u62ec\u4f20\u5bfc\u3001\u8f90\u5c04\u3001\u7535\u6d41\u8c10\u6ce2\u3001\u7535\u538b\u95ea\u70c1\u7b49\u7b49\u3002\u7535\u78c1\u5e72\u6270\u662f\u7531\u5e72\u6270\u6e90\u3001\u85d5\u5408\u901a\u9053\u548c\u63a5\u6536\u5668\u4e09\u90e8\u5206\u6784\u6210\u7684\uff0c\u901a\u5e38\u79f0\u4f5c\u5e72\u6270\u7684\u4e09\u8981\u7d20\u3002 EMI\u7ebf\u6027\u6b63\u6bd4\u4e8e\u7535\u6d41\uff0c\u7535\u6d41\u56de\u8def\u9762\u79ef\u4ee5\u53ca\u9891\u7387\u7684\u5e73\u65b9\u5373\uff1aEMI = K*I*S*F2\u3002I\u662f\u7535\u6d41\uff0cS\u662f\u56de\u8def\u9762\u79ef\uff0cF\u662f\u9891\u7387\uff0cK\u662f\u4e0e\u7535\u8def\u677f\u6750\u6599\u548c\u5176\u4ed6\u56e0\u7d20\u6709\u5173\u7684\u4e00\u4e2a\u5e38\u6570\u3002<\/font>

\n

\n

\n\u8f90\u5c04\u5e72\u6270(30MHz—1GHz)\u662f\u901a\u8fc7\u7a7a\u95f4\u5e76\u4ee5\u7535\u78c1\u6ce2\u7684\u7279\u6027\u548c\u89c4\u5f8b\u4f20\u64ad\u7684\u3002\u4f46\u4e0d\u662f\u4efb\u4f55\u88c5\u7f6e\u90fd\u80fd\u8f90\u5c04\u7535\u78c1\u6ce2\u7684\u3002<\/font>

\n

\n

\n\u4f20\u5bfc\u5e72\u6270(150K--30MHz)\u662f\u6cbf\u7740\u5bfc\u4f53\u4f20\u64ad\u7684\u5e72\u6270\u3002\u6240\u4ee5\u4f20\u5bfc\u5e72\u6270\u7684\u4f20\u64ad\u8981\u6c42\u5728\u5e72\u6270\u6e90\u548c\u63a5\u6536\u5668\u4e4b\u95f4\u6709\u4e00\u5b8c\u6574\u7684\u7535\u8def\u8fde\u63a5\u3002<\/font>

\n

\n

\nEMI\u662f\u6307\u4ea7\u54c1\u7684\u5bf9\u5916\u7535\u78c1\u5e72\u6270\u3002\u4e00\u822c\u60c5\u51b5\u4e0b\u5206\u4e3aClass A & Class B \u4e24\u4e2a\u7b49\u7ea7\u3002 Class A\u4e3a\u5de5\u4e1a\u7b49\u7ea7\uff0cClass B\u4e3a\u6c11\u7528\u7b49\u7ea7\u3002\u6c11\u7528\u7684\u8981\u6bd4\u5de5\u4e1a\u7684\u4e25\u683c\uff0c\u56e0\u4e3a\u5de5\u4e1a\u7528\u7684\u5141\u8bb8\u8f90\u5c04\u7a0d\u5fae\u5927\u4e00\u70b9\u3002\u540c\u6837\u4ea7\u54c1\u5728\u6d4b\u8bd5EMI\u4e2d\u7684\u8f90\u5c04\u6d4b\u8bd5\u6765\u8bb2\uff0c\u572830-230MHz\u4e0b\uff0cB\u7c7b\u8981\u6c42\u4ea7\u54c1\u7684\u8f90\u5c04\u9650\u503c\u4e0d\u80fd\u8d85\u8fc740dBm \u800cA\u7c7b\u8981\u6c42\u4e0d\u80fd\u8d85\u8fc750dBm(\u4ee5\u4e09\u7c73\u6cd5\u7535\u6ce2\u6697\u5ba4\u6d4b\u91cf\u4e3a\u4f8b\uff09\u76f8\u5bf9\u8981\u5bbd\u677e\u7684\u591a\uff0c\u4e00\u822c\u6765\u8bf4CLASSA\u662f\u6307\u5728EMI\u6d4b\u8bd5\u6761\u4ef6\u4e0b\uff0c\u65e0\u9700\u64cd\u4f5c\u4eba\u5458\u4ecb\u5165\uff0c\u8bbe\u5907\u80fd\u6309\u9884\u671f\u6301\u7eed\u6b63\u5e38\u5de5\u4f5c\uff0c\u4e0d\u5141\u8bb8\u51fa\u73b0\u4f4e\u4e8e\u89c4\u5b9a\u7684\u6027\u80fd\u7b49\u7ea7\u7684\u6027\u80fd\u964d\u4f4e\u6216\u529f\u80fd\u635f\u5931\u3002<\/font>

\n

\n

\nEMI\u662f\u8bbe\u5907\u6b63\u5e38\u5de5\u4f5c\u65f6\u6d4b\u5b83\u7684\u8f90\u5c04\u548c\u4f20\u5bfc\u3002\u5728\u6d4b\u8bd5\u7684\u65f6\u5019\uff0cEMI\u7684\u8f90\u5c04\u548c\u4f20\u5bfc\u5728\u63a5\u6536\u673a\u4e0a\u6709\u4e24\u4e2a\u4e0a\u9650\uff0c\u5206\u522b\u4ee3\u8868Class A\u548cClass B\uff0c\u5982\u679c\u89c2\u5bdf\u7684\u6ce2\u5f62\u8d85\u8fc7B\u7684\u7ebf\u4f46\u662f\u4f4e\u4e8eA\u7684\u7ebf\uff0c\u90a3\u4e48\u4ea7\u54c1\u5c31\u662fA\u7c7b\u7684\u3002EMS\u662f\u7528\u6d4b\u8bd5\u8bbe\u5907\u5bf9\u4ea7\u54c1\u5e72\u6270\uff0c\u89c2\u5bdf\u4ea7\u54c1\u5728\u5e72\u6270\u4e0b\u80fd\u5426\u6b63\u5e38\u5de5\u4f5c\uff0c\u5982\u679c\u6b63\u5e38\u5de5\u4f5c\u6216\u4e0d\u51fa\u73b0\u8d85\u8fc7\u6807\u51c6\u89c4\u5b9a\u7684\u6027\u80fd\u4e0b\u964d\uff0c\u4e3aA\u7ea7\u3002\u80fd\u81ea\u52a8\u91cd\u542f\u4e14\u91cd\u542f\u540e\u4e0d\u51fa\u73b0\u8d85\u8fc7\u6807\u51c6\u89c4\u5b9a\u7684\u6027\u80fd\u4e0b\u964d\uff0c\u4e3aB\u7ea7\u3002\u4e0d\u80fd\u81ea\u52a8\u91cd\u542f\u9700\u4eba\u4e3a\u91cd\u542f\u4e3aC\u7ea7\uff0c\u6302\u6389\u4e3aD\u7ea7\u3002\u56fd\u6807\u6709D\u7ea7\u7684\u89c4\u5b9a\uff0cEN\u53ea\u6709A\uff0cB\uff0cC\u3002EMI\u5728\u5de5\u4f5c\u9891\u7387\u7684\u5947\u6570\u500d\u662f\u6700\u4e0d\u597d\u8fc7\u7684\u3002<\/font>

\n

\n

\nEMS(Electmmagnetic Suseeptibilkr) \u7535\u78c1\u654f\u611f\u5ea6\u4e00\u822c\u4fd7\u79f0\u4e3a“\u7535\u78c1\u514d\u75ab\u529b”\uff0c\u662f\u8bbe\u5907\u6297\u5916\u754c\u9a9a\u6270\u5e72\u6270\u4e4b\u80fd\u529b\uff0cEMI\u662f\u8bbe\u5907\u5bf9\u5916\u7684\u9a9a\u6270\u3002<\/font>

\n

\n

\nEMS\u4e2d\u7684\u7b49\u7ea7\u662f\u6307\uff1aClass A\uff0c\u6d4b\u8bd5\u5b8c\u6210\u540e\u8bbe\u5907\u4ecd\u5728\u6b63\u5e38\u5de5\u4f5c\uff1bClass B\uff0c\u6d4b\u8bd5\u5b8c\u6210\u6216\u6d4b\u8bd5\u4e2d\u9700\u8981\u91cd\u542f\u540e\u53ef\u4ee5\u6b63\u5e38\u5de5\u4f5c\uff1bClass C\uff0c\u9700\u8981\u4eba\u4e3a\u8c03\u6574\u540e\u53ef\u4ee5\u6b63\u5e38\u91cd\u542f\u5e76\u6b63\u5e38\u5de5\u4f5c\uff1bClass D\uff0c\u8bbe\u5907\u5df2\u635f\u574f\uff0c\u65e0\u8bba\u600e\u6837\u8c03\u6574\u4e5f\u65e0\u6cd5\u542f\u52a8\u3002\u4e25\u683c\u7a0b\u5ea6EMI\u662fB > A\uff0cEMS\u662fA > B > C > D\u3002<\/font><\/p>\n","protected":false},"excerpt":{"rendered":"

EMC(Electromagnetic Compatibility)\u662f\u7535\u78c1\u517c\u5bb9\uff0c\u5b83\u5305\u62ecEMI(\u7535\u78c1\u9a9a\u6270)\u548cEMS\uff08\u7535\u78c1\u6297\u9a9a\u6270\uff09\u3002EMC\u5b9a\u4e49\u4e3a\uff1a\u8bbe\u5907\u6216\u7cfb\u7edf\u5728\u5176\u7535\u78c1\u73af\u5883\u4e2d\u80fd\u6b63\u5e38\u5de5\u4f5c\u4e14\u4e0d\u5bf9\u8be5\u73af\u5883\u4e2d\u7684\u4efb\u4f55\u8bbe\u5907\u7684\u4efb\u4f55\u4e8b\u7269\u6784\u6210\u4e0d\u80fd\u627f\u53d7<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[19],"tags":[],"_links":{"self":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/posts\/1249"}],"collection":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1249"}],"version-history":[{"count":0,"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/posts\/1249\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1249"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1249"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1249"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}