{"id":3730,"date":"2023-06-16T23:08:15","date_gmt":"2023-06-16T15:08:15","guid":{"rendered":"\/\/www.dealsbon.com\/?p=3730"},"modified":"2023-06-16T23:17:31","modified_gmt":"2023-06-16T15:17:31","slug":"xwzsjsgsdh","status":"publish","type":"post","link":"\/\/www.dealsbon.com\/blog\/3730.html","title":{"rendered":"\u76f8\u4f4d\u566a\u58f0\u8ba1\u7b97\u516c\u5f0fdBc\/Hz"},"content":{"rendered":"\n

\u3000\u3000\u76f8\u4f4d\u566a\u58f0<\/strong>\u662f\u4e00\u79cd\u5e7f\u6cdb\u5b58\u5728\u4e8e\u5404\u79cd\u7535\u5b50\u8bbe\u5907\u4e2d\u7684\u566a\u58f0\uff0c\u5b83\u53ef\u4ee5\u5f71\u54cd\u7cfb\u7edf\u7684\u6027\u80fd\u548c\u7cbe\u5ea6\u3002\u5728\u7535\u5b50\u8bbe\u5907\u4e2d\uff0c\u76f8\u4f4d\u566a\u58f0\u901a\u5e38\u4ee5dBc\/Hz\u4e3a\u5355\u4f4d\u6765\u8fdb\u884c\u8ba1\u7b97\u548c\u63cf\u8ff0\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u76f8\u4f4d\u566a\u58f0\u7684\u8ba1\u7b97\u516c\u5f0f\u4ee5\u53ca\u76f8\u5173\u77e5\u8bc6\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e00\u3001\u76f8\u4f4d\u566a\u58f0\u7684\u5b9a\u4e49<\/h2>\n\n\n\n

\u3000\u3000\u76f8\u4f4d\u566a\u58f0\u662f\u6307\u5728\u67d0\u4e00\u9891\u7387\u70b9\u4e0a\uff0c\u4fe1\u53f7\u7684\u76f8\u4f4d\u968f\u65f6\u95f4\u7684\u53d8\u5316\u6240\u5f15\u8d77\u7684\u566a\u58f0\u3002\u76f8\u4f4d\u566a\u58f0\u901a\u5e38\u662f\u7531\u4e8e\u632f\u8361\u5668\u7684\u975e\u7406\u60f3\u7279\u6027\u6240\u5f15\u8d77\u7684\u3002\u76f8\u4f4d\u566a\u58f0\u53ef\u4ee5\u901a\u8fc7\u76f8\u4f4d\u566a\u58f0\u5bc6\u5ea6\u6765\u63cf\u8ff0\uff0c\u5355\u4f4d\u4e3arad\/Hz\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e8c\u3001\u76f8\u4f4d\u566a\u58f0\u8ba1\u7b97\u516c\u5f0f<\/h2>\n\n\n\n

\u3000\u3000\u76f8\u4f4d\u566a\u58f0\u7684\u8ba1\u7b97\u516c\u5f0f\u53ef\u4ee5\u901a\u8fc7\u76f8\u4f4d\u566a\u58f0\u5bc6\u5ea6\u548c\u5e26\u5bbd\u6765\u8ba1\u7b97\u3002\u76f8\u4f4d\u566a\u58f0\u5bc6\u5ea6\u901a\u5e38\u4ee5dBc\/Hz\u4e3a\u5355\u4f4d\u6765\u8868\u793a\uff0c\u5b83\u7684\u8ba1\u7b97\u516c\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n

\u3000\u3000L(\u03c9) = 10log10 S(\u03c9) – 10log10 \u03c9<\/strong><\/p>\n\n\n\n

\u3000\u3000\u5176\u4e2d\uff0cL(\u03c9)\u4e3a\u76f8\u4f4d\u566a\u58f0\u5bc6\u5ea6\uff0cS(\u03c9)\u4e3a\u529f\u7387\u8c31\u5bc6\u5ea6\uff0c\u03c9\u4e3a\u89d2\u9891\u7387\u3002<\/strong><\/p>\n\n\n\n

\u3000\u3000\u76f8\u4f4d\u566a\u58f0\u5bc6\u5ea6\u7684\u5355\u4f4d\u4e3arad\/Hz\uff0c\u800c\u529f\u7387\u8c31\u5bc6\u5ea6\u7684\u5355\u4f4d\u4e3aW\/Hz\u3002\u4e3a\u4e86\u5c06\u76f8\u4f4d\u566a\u58f0\u5bc6\u5ea6\u8f6c\u6362\u4e3adBc\/Hz\uff0c\u6211\u4eec\u9700\u8981\u5c06\u5176\u8f6c\u6362\u4e3a\u529f\u7387\u8c31\u5bc6\u5ea6\u7684\u5355\u4f4d\uff0c\u5373W\/Hz\u3002\u8f6c\u6362\u516c\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n

\u3000\u3000S(\u03c9) = (L(\u03c9) + 174) – 10log10 B<\/strong><\/p>\n\n\n\n

\u3000\u3000\u5176\u4e2d\uff0cB\u4e3a\u5e26\u5bbd\uff0c\u5355\u4f4d\u4e3aHz\u3002174\u662f\u4e00\u4e2a\u5e38\u6570\uff0c\u5b83\u662f0dBm\u53c2\u8003\u529f\u7387\u5bf9\u5e94\u7684\u566a\u58f0\u529f\u7387\u5bc6\u5ea6\u3002<\/strong><\/p>\n\n\n\n

\u3000\u3000\u5c06\u4e0a\u8ff0\u4e24\u4e2a\u516c\u5f0f\u4ee3\u5165\uff0c\u53ef\u4ee5\u5f97\u5230\u76f8\u4f4d\u566a\u58f0\u7684\u8ba1\u7b97\u516c\u5f0f\uff1a<\/p>\n\n\n\n

\u3000\u3000L(\u03c9) = 10log10 [(S(\u03c9) + 174) \/ B] – 10log10 \u03c9 – 10log10 B – 10log10 1000 – 10log10 2<\/strong><\/p>\n\n\n\n

\u3000\u3000\u5176\u4e2d\uff0c1000\u662f\u5c06kHz\u8f6c\u6362\u4e3aHz\u7684\u7cfb\u6570\uff0c2\u662f\u7531\u4e8e\u76f8\u4f4d\u566a\u58f0\u662f\u53cc\u8fb9\u5e26\u566a\u58f0\u800c\u9700\u8981\u4e58\u4ee52.<\/strong><\/p>\n\n\n\n

\u3000\u3000\u4e09\u3001\u76f8\u4f4d\u566a\u58f0\u7684\u5f71\u54cd<\/h2>\n\n\n\n

\u3000\u3000\u76f8\u4f4d\u566a\u58f0\u5bf9\u4e8e\u5f88\u591a\u7535\u5b50\u8bbe\u5907\u7684\u6027\u80fd\u548c\u7cbe\u5ea6\u90fd\u6709\u7740\u91cd\u8981\u7684\u5f71\u54cd\u3002\u5728\u632f\u8361\u5668\u4e2d\uff0c\u76f8\u4f4d\u566a\u58f0\u4f1a\u5bfc\u81f4\u7cfb\u7edf\u7684\u9891\u7387\u7a33\u5b9a\u5ea6\u4e0b\u964d\uff0c\u4ece\u800c\u5f71\u54cd\u7cfb\u7edf\u7684\u6027\u80fd\u3002\u5728\u901a\u4fe1\u7cfb\u7edf\u4e2d\uff0c\u76f8\u4f4d\u566a\u58f0\u4f1a\u5bfc\u81f4\u4fe1\u53f7\u5931\u771f\u548c\u8bef\u7801\u7387\u7684\u589e\u52a0\uff0c\u4ece\u800c\u5f71\u54cd\u901a\u4fe1\u7cfb\u7edf\u7684\u53ef\u9760\u6027\u548c\u7a33\u5b9a\u6027\u3002<\/p>\n\n\n\n

\u3000\u3000\u56db\u3001\u5982\u4f55\u51cf\u5c11\u76f8\u4f4d\u566a\u58f0<\/h2>\n\n\n\n

\u3000\u3000\u4e3a\u4e86\u51cf\u5c11\u76f8\u4f4d\u566a\u58f0\u7684\u5f71\u54cd\uff0c\u6211\u4eec\u9700\u8981\u91c7\u53d6\u4e00\u4e9b\u63aa\u65bd\u6765\u964d\u4f4e\u76f8\u4f4d\u566a\u58f0\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u51cf\u5c11\u76f8\u4f4d\u566a\u58f0\u7684\u65b9\u6cd5\uff1a<\/p>\n\n\n\n

    \n
  • \u3000\u30001.\u9009\u62e9\u4f18\u8d28\u7684\u632f\u8361\u5668\u548c\u5143\u5668\u4ef6\uff0c\u51cf\u5c11\u5143\u5668\u4ef6\u7684\u566a\u58f0\u3002<\/li>\n\n\n\n
  • \u3000\u30002.\u4f18\u5316\u7cfb\u7edf\u7684\u7535\u8def\u8bbe\u8ba1\uff0c\u51cf\u5c11\u7535\u8def\u4e2d\u7684\u566a\u58f0\u3002<\/li>\n\n\n\n
  • \u3000\u30003.\u9009\u62e9\u5408\u9002\u7684\u6ee4\u6ce2\u5668\uff0c\u51cf\u5c11\u566a\u58f0\u7684\u5e72\u6270\u3002<\/li>\n\n\n\n
  • \u3000\u30004.\u63a7\u5236\u7cfb\u7edf\u7684\u6e29\u5ea6\u548c\u73af\u5883\uff0c\u907f\u514d\u6e29\u5ea6\u548c\u73af\u5883\u53d8\u5316\u5bf9\u7cfb\u7edf\u7684\u5f71\u54cd\u3002<\/li>\n<\/ul>\n\n\n\n

    \u3000\u3000\u4e94\u3001\u603b\u7ed3<\/h2>\n\n\n\n

    \u3000\u3000\u76f8\u4f4d\u566a\u58f0\u662f\u4e00\u79cd\u5e7f\u6cdb\u5b58\u5728\u4e8e\u5404\u79cd\u7535\u5b50\u8bbe\u5907\u4e2d\u7684\u566a\u58f0\uff0c\u5b83\u53ef\u4ee5\u5f71\u54cd\u7cfb\u7edf\u7684\u6027\u80fd\u548c\u7cbe\u5ea6\u3002\u76f8\u4f4d\u566a\u58f0\u901a\u5e38\u4ee5dBc\/Hz\u4e3a\u5355\u4f4d\u6765\u8fdb\u884c\u8ba1\u7b97\u548c\u63cf\u8ff0\u3002\u76f8\u4f4d\u566a\u58f0\u7684\u8ba1\u7b97\u516c\u5f0f\u53ef\u4ee5\u901a\u8fc7\u76f8\u4f4d\u566a\u58f0\u5bc6\u5ea6\u548c\u5e26\u5bbd\u6765\u8ba1\u7b97\u3002\u4e3a\u4e86\u51cf\u5c11\u76f8\u4f4d\u566a\u58f0\u7684\u5f71\u54cd\uff0c\u6211\u4eec\u9700\u8981\u91c7\u53d6\u4e00\u4e9b\u63aa\u65bd\u6765\u964d\u4f4e\u76f8\u4f4d\u566a\u58f0\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

    \u76f8\u4f4d\u566a\u58f0\u662f\u4e00\u79cd\u5e7f\u6cdb\u5b58\u5728\u4e8e\u5404\u79cd\u7535\u5b50\u8bbe\u5907\u4e2d\u7684\u566a\u58f0\uff0c\u5b83\u53ef\u4ee5\u5f71\u54cd\u7cfb\u7edf\u7684\u6027\u80fd\u548c\u7cbe\u5ea6\u3002\u5728\u7535\u5b50\u8bbe\u5907\u4e2d\uff0c\u76f8\u4f4d\u566a\u58f0\u901a\u5e38\u4ee5dBc\/Hz\u4e3a\u5355\u4f4d\u6765\u8fdb\u884c\u8ba1\u7b97\u548c\u63cf\u8ff0\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u76f8\u4f4d\u566a\u58f0\u7684\u8ba1\u7b97\u516c\u5f0f\u4ee5\u53ca\u76f8\u5173\u77e5\u8bc6\u3002<\/p>\n","protected":false},"author":1,"featured_media":3671,"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":[52,113],"class_list":["post-3730","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-wxtx","tag-xwzs"],"_links":{"self":[{"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/posts\/3730"}],"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=3730"}],"version-history":[{"count":0,"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/posts\/3730\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/media\/3671"}],"wp:attachment":[{"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/media?parent=3730"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/categories?post=3730"},{"taxonomy":"post_tag","embeddable":true,"href":"\/\/www.dealsbon.com\/wp-json\/wp\/v2\/tags?post=3730"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}