{"id":905,"date":"2021-03-20T08:31:30","date_gmt":"2021-03-20T00:31:30","guid":{"rendered":"http:\/\/www.tinywsn.net\/wordpress\/?p=905"},"modified":"2021-04-06T20:19:14","modified_gmt":"2021-04-06T12:19:14","slug":"rf-intr","status":"publish","type":"post","link":"http:\/\/www.tinywsn.net\/wordpress\/index.php\/2021\/03\/20\/rf-intr\/","title":{"rendered":"\u5e38\u89c1\u7684\u51e0\u4e2a\u5c04\u9891\u6982\u5ff5"},"content":{"rendered":"\n<div class=\"wp-block-columns\">\n<div class=\"wp-block-column\" style=\"flex-basis:100%\">\n<h2>\u7279\u5f81\u963b\u6297<\/h2>\n\n\n\n<p>\u7279\u6027\u963b\u6297\u4e0d\u662f\u76f4\u6d41\u7535\u963b\uff0c\u5c5e\u4e8e\u957f\u7ebf\u4f20\u8f93\u4e2d\u7684\u6982\u5ff5\u3002\u5728\u9ad8\u9891\u8303\u56f4\u5185\uff0c\u4fe1\u53f7\u4f20\u8f93\u8fc7\u7a0b\u4e2d\uff0c\u4fe1\u53f7\u6cbf\u5230\u8fbe\u7684\u5730\u65b9\uff0c\u4fe1\u53f7\u7ebf\u548c\u53c2\u8003\u5e73\u9762\uff08\u7535\u6e90\u6216\u5730\u5e73\u9762\uff09\u95f4\u7531\u4e8e\u7535\u573a\u7684\u5efa\u7acb\uff0c\u4f1a\u4ea7\u751f\u4e00\u4e2a\u77ac\u95f4\u7535\u6d41\uff0c\u5982\u679c\u4f20\u8f93\u7ebf\u662f\u5404\u5411\u540c\u6027\u7684\uff0c\u90a3\u4e48\u53ea\u8981\u4fe1\u53f7\u5728\u4f20\u8f93\uff0c\u5c31\u59cb\u7ec8\u5b58\u5728\u4e00\u4e2a\u7535\u6d41I\uff0c\u800c\u5982\u679c\u4fe1\u53f7\u7684\u8f93\u51fa\u7535\u5e73\u4e3aV\uff0c\u5728\u4fe1\u53f7\u4f20\u8f93\u8fc7\u7a0b\u4e2d\uff0c\u4f20\u8f93\u7ebf\u5c31\u4f1a\u7b49\u6548\u6210\u4e00\u4e2a\u7535\u963b\uff0c\u5927\u5c0f\u4e3aV\/I\uff0c\u628a\u8fd9\u4e2a\u7b49\u6548\u7684\u7535\u963b\u79f0\u4e3a\u4f20\u8f93\u7ebf\u7684\u7279\u6027\u963b\u6297Z\u3002\u4fe1\u53f7\u5728\u4f20\u8f93\u7684\u8fc7\u7a0b\u4e2d\uff0c\u5982\u679c\u4f20\u8f93\u8def\u5f84\u4e0a\u7684\u7279\u6027\u963b\u6297\u53d1\u751f\u53d8\u5316\uff0c\u4fe1\u53f7\u5c31\u4f1a\u5728\u963b\u6297\u4e0d\u8fde\u7eed\u7684\u7ed3\u70b9\u4ea7\u751f\u53cd\u5c04\uff0c\u7279\u6027\u963b\u6297\u662f\u5747\u5300\u4f20\u8f93\u7ebf\u4e0a\u5404\u70b9\u7684\u7535\u538b\u548c\u7535\u6d41\u7684\u6bd4\u503c\uff0c\u5b83\u7531\u4f20\u8f93\u7ebf\u7684\u7ed3\u6784\u4ee5\u53ca\u6750\u6599\u51b3\u5b9a\u7684\uff0c\u800c\u4e0e\u4f20\u8f93\u7ebf\u7684\u957f\u5ea6\uff0c\u4ee5\u53ca\u4fe1\u53f7\u7684\u5e45\u5ea6\u3001\u9891\u7387\u7b49\u5747\u65e0\u5173\u3002<\/p>\n\n\n\n<h2>\u963b\u6297\u5339\u914d<\/h2>\n\n\n\n<p>\u963b\u6297\u5339\u914d\u662f\u6307\u8d1f\u8f7d\u963b\u6297\u4e0e\u6fc0\u52b1\u6e90\u5185\u90e8\u963b\u6297\u4e92\u76f8\u9002\u914d\uff0c\u5f97\u5230\u6700\u5927\u529f\u7387\u8f93\u51fa\u7684\u4e00\u79cd\u5de5\u4f5c\u72b6\u6001\uff0c\u5982\u679c\u6211\u4eec\u9700\u8981\u8f93\u51fa\u7535\u6d41\u5927\uff0c\u5219\u9009\u62e9\u5c0f\u7684\u8d1f\u8f7dR\uff1b\u5982\u679c\u6211\u4eec\u9700\u8981\u8f93\u51fa\u7535\u538b\u5927\uff0c\u5219\u9009\u62e9\u5927\u7684\u8d1f\u8f7dR\uff1b\u5982\u679c\u6211\u4eec\u9700\u8981\u8f93\u51fa\u529f\u7387\u6700\u5927\uff0c\u5219\u9009\u62e9\u8ddf\u4fe1\u53f7\u6e90\u5185\u963b\u5339\u914d\u7684\u7535\u963bR\u3002<br><br>Polar SI9000\u662f\u76ee\u524d\u662f\u5e38\u7528\u5230\u7684\u963b\u6297\u63a7\u5236\u8f6f\u4ef6\uff0c\u5b83\u80fd\u8ba1\u7b97PCB\u7ebf\u8def\u677f\u4e2d\u7279\u5f81\u963b\u6297\uff0c\u4f46\u9700\u8981\u4f7f\u7528PCB\u677f\u5382\u63d0\u4f9b\u5de5\u827a\u53c2\u6570\uff0c\u4f8b\u5982\u5609\u7acb\u521b\u963b\u6297\u591a\u5c42\u677f\uff1a\u5c42\u538b\u7ed3\u6784\u53ca\u53c2\u6570<br>  <a href=\"http:\/\/club.szlcsc.com\/article\/details_11533_1.html\">http:\/\/club.szlcsc.com\/article\/details_11533_1.html<\/a><br>\u800c\u4e14\u5609\u7acb\u521b\u8fd8\u63d0\u4f9b\u5728\u7ebf\u7684\u963b\u6297\u8ba1\u7b97\u795e\u5668\uff08\u5355\u7aef\u548c\u5dee\u5206\u5fae\u5e26\u7ebf\u6a21\u578b\uff09<br><a href=\"  http:\/\/www.sz-jlc.com\/weixin\/calculation\/impedance.html\">  http:\/\/www.sz-jlc.com\/weixin\/calculation\/impedance.html<\/a><\/p>\n\n\n\n<p><\/p>\n\n\n\n<h2>S\u53c2\u6570<br><\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"1024\" height=\"576\" src=\"http:\/\/www.tinywsn.net\/wordpress\/wp-content\/uploads\/2021\/03\/s-param-1-1024x576.jpg\" alt=\"\" class=\"wp-image-926\" srcset=\"http:\/\/www.tinywsn.net\/wordpress\/wp-content\/uploads\/2021\/03\/s-param-1-1024x576.jpg 1024w, http:\/\/www.tinywsn.net\/wordpress\/wp-content\/uploads\/2021\/03\/s-param-1-300x169.jpg 300w, http:\/\/www.tinywsn.net\/wordpress\/wp-content\/uploads\/2021\/03\/s-param-1-768x432.jpg 768w, http:\/\/www.tinywsn.net\/wordpress\/wp-content\/uploads\/2021\/03\/s-param-1.jpg 1170w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"1024\" height=\"701\" src=\"http:\/\/www.tinywsn.net\/wordpress\/wp-content\/uploads\/2021\/03\/s-param-2-1024x701.jpg\" alt=\"\" class=\"wp-image-925\" srcset=\"http:\/\/www.tinywsn.net\/wordpress\/wp-content\/uploads\/2021\/03\/s-param-2-1024x701.jpg 1024w, http:\/\/www.tinywsn.net\/wordpress\/wp-content\/uploads\/2021\/03\/s-param-2-300x205.jpg 300w, http:\/\/www.tinywsn.net\/wordpress\/wp-content\/uploads\/2021\/03\/s-param-2-768x526.jpg 768w, http:\/\/www.tinywsn.net\/wordpress\/wp-content\/uploads\/2021\/03\/s-param-2.jpg 1164w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2>Smith\u56fe<\/h2>\n\n\n\n<p>\u5bc6\u592b\u56fe\u8868(Smith chart\uff0c\u53c8\u79f0<a rel=\"noreferrer noopener\" target=\"_blank\" href=\"https:\/\/baike.baidu.com\/item\/%E5%8F%B2%E5%AF%86%E6%96%AF%E5%9C%86%E5%9B%BE\/10875918\">\u53f2\u5bc6\u65af\u5706\u56fe<\/a>)\u662f\u5728\u53cd\u5c04\u7cfb\u6563<a rel=\"noreferrer noopener\" target=\"_blank\" href=\"https:\/\/baike.baidu.com\/item\/%E5%B9%B3%E9%9D%A2\/4372\">\u5e73\u9762<\/a>\u4e0a\u6807\u7ed8\u6709\u5f52\u4e00\u5316\u8f93\u5165\u963b\u6297\uff08\u6216\u5bfc\u7eb3\uff09\u7b49\u503c\u5706\u65cf\u7684\u8ba1\u7b97\u56fe\u3002\u662f\u4e00\u6b3e\u7528\u4e8e\u7535\u673a\u4e0e<a rel=\"noreferrer noopener\" target=\"_blank\" href=\"https:\/\/baike.baidu.com\/item\/%E7%94%B5%E5%AD%90%E5%B7%A5%E7%A8%8B%E5%AD%A6\/4716531\">\u7535\u5b50\u5de5\u7a0b\u5b66<\/a>\u7684\u56fe\u8868\uff0c\u4e3b\u8981\u7528\u4e8e\u4f20\u8f93\u7ebf\u7684\u963b\u6297\u5339\u914d\u4e0a\u3002<br><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"721\" height=\"370\" src=\"http:\/\/www.tinywsn.net\/wordpress\/wp-content\/uploads\/2021\/03\/smith.png\" alt=\"\" class=\"wp-image-931\" srcset=\"http:\/\/www.tinywsn.net\/wordpress\/wp-content\/uploads\/2021\/03\/smith.png 721w, http:\/\/www.tinywsn.net\/wordpress\/wp-content\/uploads\/2021\/03\/smith-300x154.png 300w\" sizes=\"(max-width: 721px) 100vw, 721px\" \/><\/figure>\n\n\n\n<p>\u5de6\u56fe\u662f\u963b\u6297\u56fe\uff1b\u53f3\u56fe\u662f\u63b0\u5f2f\u540e\u7684\u963b\u6297\u56fe\u540c\u65f6\u5bf9\u5e94\u4e3a\u53cd\u5c04\u7cfb\u6570\u7684\u6781\u5750\u6807\uff1b<br>\u6bcf\u4e2a\u963b\u6297\u70b9\u53ef\u4ee5\u5728\u63b0\u5f2f\u7684\u56fe\u4e2d\u8bfb\u51fa\u5176\u53cd\u5c04\u7cfb\u6570\uff0c\u7b49\u963b\u7ebf\uff0c\u7b49\u6297\u7ebf<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"720\" height=\"644\" src=\"http:\/\/www.tinywsn.net\/wordpress\/wp-content\/uploads\/2021\/03\/smith-3.jpg\" alt=\"\" class=\"wp-image-921\" srcset=\"http:\/\/www.tinywsn.net\/wordpress\/wp-content\/uploads\/2021\/03\/smith-3.jpg 720w, http:\/\/www.tinywsn.net\/wordpress\/wp-content\/uploads\/2021\/03\/smith-3-300x268.jpg 300w\" sizes=\"(max-width: 720px) 100vw, 720px\" \/><\/figure>\n\n\n\n<p>\u53cd\u5c04\u7cfb\u6570\uff0c\u963b\u6297\uff0c\u9a7b\u6ce2\u6bd4\u548c\u56de\u6ce2\u635f\u8017\u4e4b\u95f4\u7684\u5173\u7cfb\u8868<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"940\" height=\"206\" src=\"http:\/\/www.tinywsn.net\/wordpress\/wp-content\/uploads\/2021\/03\/s-param-3.png\" alt=\"\" class=\"wp-image-927\" srcset=\"http:\/\/www.tinywsn.net\/wordpress\/wp-content\/uploads\/2021\/03\/s-param-3.png 940w, http:\/\/www.tinywsn.net\/wordpress\/wp-content\/uploads\/2021\/03\/s-param-3-300x66.png 300w, http:\/\/www.tinywsn.net\/wordpress\/wp-content\/uploads\/2021\/03\/s-param-3-768x168.png 768w\" sizes=\"(max-width: 940px) 100vw, 940px\" \/><\/figure>\n\n\n\n<h2>\u77e2\u91cf\u7f51\u7edc\u5206\u6790\u4eea<\/h2>\n\n\n\n<p>\u77e2\u91cf\u7f51\u7edc\u5206\u6790\u4eea\uff08VNA\uff09\u662f\u4e00\u79cd\u57fa\u4e8e\u626b\u9891\u6d4b\u91cf\u539f\u7406\u7684\u4eea\u5668\uff0c\u53ef\u4ee5\u7528\u6765\u6d4b\u8bd5S\u53c2\u6570<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"720\" height=\"380\" src=\"http:\/\/www.tinywsn.net\/wordpress\/wp-content\/uploads\/2021\/03\/vna-1.jpg\" alt=\"\" class=\"wp-image-924\" srcset=\"http:\/\/www.tinywsn.net\/wordpress\/wp-content\/uploads\/2021\/03\/vna-1.jpg 720w, http:\/\/www.tinywsn.net\/wordpress\/wp-content\/uploads\/2021\/03\/vna-1-300x158.jpg 300w\" sizes=\"(max-width: 720px) 100vw, 720px\" \/><\/figure>\n\n\n\n<p>2-\u7aef\u53e3VNA\u7684\u5de5\u4f5c\u6846\u67b6\u548c\u5de5\u4f5c\u539f\u7406\u5982\u4e0b\u56fe\u6240\u793a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"490\" height=\"303\" src=\"http:\/\/www.tinywsn.net\/wordpress\/wp-content\/uploads\/2021\/03\/vna-2.jpg\" alt=\"\" class=\"wp-image-923\" srcset=\"http:\/\/www.tinywsn.net\/wordpress\/wp-content\/uploads\/2021\/03\/vna-2.jpg 490w, http:\/\/www.tinywsn.net\/wordpress\/wp-content\/uploads\/2021\/03\/vna-2-300x186.jpg 300w\" sizes=\"(max-width: 490px) 100vw, 490px\" \/><\/figure>\n\n\n\n<h2>\u9891\u7387\u5206\u6790\u4eea\u548c\u626b\u9891\u4eea<\/h2>\n\n\n\n<ul><li>\u9891\u8c31\u5206\u6790\u4eea\u4e3b\u8981\u7528\u4e8e\u5c04\u9891\u548c\u5fae\u6ce2\u4fe1\u53f7\u7684\u9891\u57df\u5206\u6790\uff0c\u5305\u62ec\u5b9e\u65f6\u9891\u8c31\u4eea\u548c\u626b\u9891\u8c03\u8c10\u5f0f\u9891\u8c31\u4eea\u4e24\u7c7b\uff0c\u663e\u793a\u88ab\u6d4b\u91cf\u4fe1\u53f7\u7684\u529f\u7387\uff0c\u9891\u7387\u7b49<\/li><li>\u626b\u9891\u4eea\u7684\u626b\u9891\u4fe1\u53f7\u52a0\u81f3\u88ab\u6d4b\u7535\u8def\uff0c\u68c0\u6ce2\u63a2\u5934\u5bf9\u88ab\u6d4b\u7535\u8def\u7684\u8f93\u51fa\u4fe1\u53f7\u8fdb\u884c\u5cf0\u503c\u68c0\u6ce2\uff0c\u8be5\u4fe1\u53f7\u7684\u5e45\u5ea6\u53cd\u6620\u4e86\u88ab\u6d4b\u7535\u8def\u7684\u5e45\u9891\u7279\u6027<\/li><\/ul>\n\n\n\n<p>\u4f46\u9891\u8c31\u4eea\u548c\u626b\u63cf\u4eea\u662f\u672c\u8d28\u4e0d\u540c\u7684\u4e24\u79cd\u6d4b\u91cf\u8bbe\u5907\uff0c\u4eea\u5668\u7684\u6846\u56fe\u7ed3\u6784\u4e5f\u662f\u4e0d\u4e00\u6837\u7684\uff0c\u5982\u4e0b\u56fe\u6240\u793a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"600\" height=\"480\" src=\"http:\/\/www.tinywsn.net\/wordpress\/wp-content\/uploads\/2021\/03\/ssa.png\" alt=\"\" class=\"wp-image-948\" srcset=\"http:\/\/www.tinywsn.net\/wordpress\/wp-content\/uploads\/2021\/03\/ssa.png 600w, http:\/\/www.tinywsn.net\/wordpress\/wp-content\/uploads\/2021\/03\/ssa-300x240.png 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n\n\n\n<p>\u524d\u8005\u6d4b\u91cf\u7684\u662f\u4fe1\u53f7\u7684\u7279\u6027\uff1b\u540e\u8005\u5219\u662f\u6d4b\u91cf\u7cfb\u7edf\u7684\u7279\u6027\u3002\u76ee\u524d\u8bb8\u591a\u9891\u8c31\u5206\u6790\u4eea\u4e5f\u652f\u6301\u626b\u9891\u7684\u529f\u80fd\u3002<\/p>\n<\/div>\n<\/div>\n\n\n\n<h2>\u5b9a\u5411\u8026\u5408\u5668<\/h2>\n\n\n\n<p>\u5b9a\u5411\u8026\u5408\u5668\u662f\u4e00\u79cd\u6d4b\u91cf\u8bbe\u5907\uff0c 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