{"id":64487,"date":"2023-11-03T11:48:52","date_gmt":"2023-11-03T03:48:52","guid":{"rendered":"\/\/www.dealsbon.com\/?p=64487"},"modified":"2023-11-03T11:49:02","modified_gmt":"2023-11-03T03:49:02","slug":"gmyzbssmgmyzbgs","status":"publish","type":"post","link":"\/\/www.dealsbon.com\/blog\/64487.html","title":{"rendered":"\u5171\u6a21\u6291\u5236\u6bd4\u662f\u4ec0\u4e48\uff1f\u5171\u6a21\u6291\u5236\u6bd4\u516c\u5f0f\uff1f"},"content":{"rendered":"\n

\u3000\u3000\u5728\u7535\u5b50\u5de5\u7a0b\u9886\u57df\uff0c\u5171\u6a21\u6291\u5236\u6bd4<\/a><\/strong>\u662f\u4e00\u4e2a\u91cd\u8981\u7684\u53c2\u6570\uff0c\u7528\u4e8e\u8861\u91cf\u7535\u8def\u6216\u8bbe\u5907\u6291\u5236\u5171\u6a21\u4fe1\u53f7\u7684\u80fd\u529b\u3002\u5171\u6a21\u4fe1\u53f7\u662f\u6307\u5728\u4e24\u4e2a\u4fe1\u53f7\u5f15\u811a\u4e0a\u540c\u65f6\u5b58\u5728\u7684\u4fe1\u53f7\uff0c\u5b83\u53ef\u80fd\u662f\u566a\u58f0\u3001\u5e72\u6270\u6216\u5176\u4ed6\u975e\u671f\u671b\u7684\u4fe1\u53f7\u3002\u5171\u6a21\u6291\u5236\u6bd4\u662f\u4e00\u4e2a\u5173\u952e\u6307\u6807\uff0c\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u8bc4\u4f30\u7535\u8def\u7684\u6027\u80fd\u548c\u6297\u5e72\u6270\u80fd\u529b\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5171\u6a21\u6291\u5236\u6bd4\u7684\u6982\u5ff5\u3001\u8ba1\u7b97\u65b9\u6cd5\u4ee5\u53ca\u5176\u5728\u7535\u5b50\u5de5\u7a0b\u4e2d\u7684\u5e94\u7528\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e00\u3001\u5171\u6a21\u6291\u5236\u6bd4\u7684\u6982\u5ff5<\/h2>\n\n\n\n

\u3000\u3000\u5171\u6a21\u6291\u5236\u6bd4(Common Mode Rejection Ratio\uff0cCMRR)\u662f\u6307\u5f53\u5171\u6a21\u4fe1\u53f7\u65bd\u52a0\u5230\u7535\u8def\u8f93\u5165\u65f6\uff0c\u7535\u8def\u8f93\u51fa\u5bf9\u5171\u6a21\u4fe1\u53f7\u7684\u6291\u5236\u7a0b\u5ea6\u3002\u5b83\u901a\u5e38\u7528\u5206\u8d1d(dB)\u8868\u793a\u3002<\/strong>\u5171\u6a21\u6291\u5236\u6bd4\u8d8a\u9ad8\uff0c\u8868\u793a\u7535\u8def\u5bf9\u5171\u6a21\u4fe1\u53f7\u7684\u6291\u5236\u80fd\u529b\u8d8a\u5f3a\uff0c\u5bf9\u5dee\u5206\u4fe1\u53f7\u7684\u653e\u5927\u80fd\u529b\u8d8a\u597d\u3002\u5171\u6a21\u6291\u5236\u6bd4\u662f\u8861\u91cf\u7535\u8def\u6297\u5e72\u6270\u80fd\u529b\u7684\u4e00\u4e2a\u91cd\u8981\u6307\u6807\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e8c\u3001\u5171\u6a21\u6291\u5236\u6bd4\u7684\u8ba1\u7b97\u65b9\u6cd5<\/h2>\n\n\n\n

\u3000\u3000\u5171\u6a21\u6291\u5236\u6bd4\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u516c\u5f0f\u8ba1\u7b97\uff1a<\/p>\n\n\n\n

\u3000\u3000CMRR = 20log10(Av\/Ac)<\/strong><\/p>\n\n\n\n

\u3000\u3000\u5176\u4e2d\uff0cAv\u8868\u793a\u5dee\u5206\u6a21\u5f0f\u4e0b\u7684\u589e\u76ca\uff0cAc\u8868\u793a\u5171\u6a21\u6a21\u5f0f\u4e0b\u7684\u589e\u76ca<\/strong>\u3002\u901a\u5e38\u60c5\u51b5\u4e0b\uff0cAv\u8fdc\u5927\u4e8eAc\uff0c\u6240\u4ee5CMRR\u503c\u4e00\u822c\u4e3a\u6b63\u503c\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e09\u3001\u5171\u6a21\u6291\u5236\u6bd4\u7684\u5e94\u7528<\/h2>\n\n\n\n

\u3000\u3000\u5171\u6a21\u6291\u5236\u6bd4\u5728\u7535\u5b50\u5de5\u7a0b\u4e2d\u5177\u6709\u5e7f\u6cdb\u7684\u5e94\u7528\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u89c1\u7684\u5e94\u7528\u573a\u666f\uff1a<\/p>\n\n\n\n

\u3000\u30001. \u5dee\u5206\u653e\u5927\u5668<\/h3>\n\n\n\n

\u3000\u3000\u5dee\u5206\u653e\u5927\u5668\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u7535\u8def\u7ed3\u6784\uff0c\u7528\u4e8e\u653e\u5927\u5dee\u5206\u4fe1\u53f7\u3002\u5171\u6a21\u6291\u5236\u6bd4\u662f\u8bc4\u4f30\u5dee\u5206\u653e\u5927\u5668\u6027\u80fd\u7684\u91cd\u8981\u6307\u6807\u4e4b\u4e00\u3002\u8f83\u9ad8\u7684\u5171\u6a21\u6291\u5236\u6bd4\u53ef\u4ee5\u6709\u6548\u6291\u5236\u5171\u6a21\u566a\u58f0\uff0c\u63d0\u9ad8\u4fe1\u53f7\u7684\u7eaf\u51c0\u5ea6\u3002<\/p>\n\n\n\n

\u3000\u30002. \u4f20\u611f\u5668\u63a5\u53e3\u7535\u8def<\/h3>\n\n\n\n

\u3000\u3000\u5728\u4f20\u611f\u5668\u63a5\u53e3\u7535\u8def\u4e2d\uff0c\u5171\u6a21\u6291\u5236\u6bd4\u5bf9\u4e8e\u51c6\u786e\u6d4b\u91cf\u548c\u4f20\u8f93\u4f20\u611f\u5668\u4fe1\u53f7\u975e\u5e38\u91cd\u8981\u3002\u901a\u8fc7\u63d0\u9ad8\u5171\u6a21\u6291\u5236\u6bd4\uff0c\u53ef\u4ee5\u964d\u4f4e\u4f20\u611f\u5668\u4fe1\u53f7\u53d7\u5230\u73af\u5883\u5e72\u6270\u7684\u5f71\u54cd\uff0c\u63d0\u9ad8\u4fe1\u53f7\u7684\u51c6\u786e\u6027\u548c\u7a33\u5b9a\u6027\u3002<\/p>\n\n\n\n

\u3000\u30003. \u6570\u636e\u901a\u4fe1\u7cfb\u7edf<\/h3>\n\n\n\n

\u3000\u3000\u5728\u6570\u636e\u901a\u4fe1\u7cfb\u7edf\u4e2d\uff0c\u5171\u6a21\u6291\u5236\u6bd4\u7684\u9ad8\u4f4e\u76f4\u63a5\u5f71\u54cd\u7cfb\u7edf\u7684\u6297\u5e72\u6270\u80fd\u529b\u548c\u4f20\u8f93\u8d28\u91cf\u3002\u8f83\u9ad8\u7684\u5171\u6a21\u6291\u5236\u6bd4\u53ef\u4ee5\u51cf\u5c11\u5e72\u6270\u4fe1\u53f7\u5bf9\u6570\u636e\u4f20\u8f93\u7684\u5f71\u54cd\uff0c\u63d0\u9ad8\u6570\u636e\u7684\u53ef\u9760\u6027\u548c\u7a33\u5b9a\u6027\u3002<\/p>\n\n\n\n

\u3000\u30004. \u7535\u6e90\u6ee4\u6ce2\u5668<\/h3>\n\n\n\n

\u3000\u3000\u5728\u7535\u6e90\u6ee4\u6ce2\u5668\u4e2d\uff0c\u5171\u6a21\u6291\u5236\u6bd4\u7528\u4e8e\u8bc4\u4f30\u6ee4\u6ce2\u5668\u5bf9\u5171\u6a21\u566a\u58f0\u7684\u6291\u5236\u6548\u679c\u3002\u8f83\u9ad8\u7684\u5171\u6a21\u6291\u5236\u6bd4\u53ef\u4ee5\u6709\u6548\u964d\u4f4e\u7535\u6e90\u4e2d\u7684\u5171\u6a21\u566a\u58f0\uff0c\u63d0\u4f9b\u66f4\u7a33\u5b9a\u548c\u53ef\u9760\u7684\u7535\u6e90\u4f9b\u5e94\u3002<\/p>\n\n\n\n

\u3000\u3000\u603b\u7ed3\uff1a<\/h2>\n\n\n\n

\u3000\u3000\u5171\u6a21\u6291\u5236\u6bd4\u662f\u8861\u91cf\u7535\u8def\u6297\u5e72\u6270\u80fd\u529b\u7684\u91cd\u8981\u6307\u6807\uff0c\u80fd\u591f\u8bc4\u4f30\u7535\u8def\u5bf9\u5171\u6a21\u4fe1\u53f7\u7684\u6291\u5236\u7a0b\u5ea6\u3002\u901a\u8fc7\u5408\u7406\u7684\u8bbe\u8ba1\u548c\u4f18\u5316\uff0c\u53ef\u4ee5\u63d0\u9ad8\u5171\u6a21\u6291\u5236\u6bd4\uff0c\u51cf\u5c11\u5e72\u6270\u4fe1\u53f7\u5bf9\u7535\u8def\u7684\u5f71\u54cd\uff0c\u63d0\u9ad8\u7cfb\u7edf\u7684\u6027\u80fd\u548c\u7a33\u5b9a\u6027\u3002<\/strong>\u5728\u4e0d\u540c\u7684\u5e94\u7528\u9886\u57df\u4e2d\uff0c\u5171\u6a21\u6291\u5236\u6bd4\u90fd\u8d77\u7740\u91cd\u8981\u7684\u4f5c\u7528\uff0c\u5e2e\u52a9\u5de5\u7a0b\u5e08\u5b9e\u73b0\u66f4\u597d\u7684\u7535\u8def\u8bbe\u8ba1\u548c\u7cfb\u7edf\u6027\u80fd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u5171\u6a21\u6291\u5236\u6bd4(Common Mode Rejection Ratio\uff0cCMRR)\u662f\u6307\u5f53\u5171\u6a21\u4fe1\u53f7\u65bd\u52a0\u5230\u7535\u8def\u8f93\u5165\u65f6\uff0c\u7535\u8def\u8f93\u51fa\u5bf9\u5171\u6a21\u4fe1\u53f7\u7684\u6291\u5236\u7a0b\u5ea6\u3002\u5b83\u901a\u5e38\u7528\u5206\u8d1d(dB)\u8868\u793a\u3002<\/p>\n","protected":false},"author":1,"featured_media":64183,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-global-header-display":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","footnotes":""},"categories":[36],"tags":[176],"class_list":["post-64487","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-dzgc"],"_links":{"self":[{"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/posts\/64487"}],"collection":[{"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/comments?post=64487"}],"version-history":[{"count":0,"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/posts\/64487\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/media\/64183"}],"wp:attachment":[{"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/media?parent=64487"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/categories?post=64487"},{"taxonomy":"post_tag","embeddable":true,"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/tags?post=64487"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}