{"id":3000,"date":"2018-12-28T21:09:24","date_gmt":"2018-12-28T13:09:24","guid":{"rendered":"https:\/\/damakey.com\/?p=3000"},"modified":"2023-06-05T20:44:44","modified_gmt":"2023-06-05T12:44:44","slug":"%e5%a5%bd%e8%81%b2%e9%9f%b3%e7%9a%84%e7%a7%91%e5%ad%b8","status":"publish","type":"post","link":"https:\/\/damakey.com\/?p=3000","title":{"rendered":"\u597d\u8072\u97f3\u7684\u79d1\u5b78"},"content":{"rendered":"

\u300c\u5f9e\u5341\u516b\u500b\u6708\u5927\u4e00\u76f4\u5230\u56db\u6b73\uff0c\u8072\u97f3\u548c\u6bcd\u8a9e\u5c31\u50cf\u53bb\u4e0d\u6389\u7684\u523a\u9752\uff0c\u9298\u523b\u5728\u5b69\u5b50\u7684\u76ae\u5c64<\/span>\ud855\ude83\u3002\u5f9e\u8941\u8913\u6642\u671f\u5c31\u540c\u6642\u5b78\u7fd2\u5169\u7a2e\u8a9e\u8a00\uff0c\u53ef\u4ee5\u8b93\u5927\u8166\u7684\u8a9e\u8a00\u5340\u540c\u6642\u767c\u5c55\u3002\u300d<\/span>*<\/span><\/p>\n

<\/span><\/p>\n

\u300c<\/span>……<\/span>\u7576\u5b69\u5b50\u807d\u898b\u6bcd\u89aa\u7684\u8072\u97f3\u6642\uff0c\u9019\u4e9b\u8072\u97f3\u6703\u5553\u52d5\u7684\u8377\u723e\u8499\u4f5c\u7528\u6a5f\u5236\u3002\u9019\u4e9b\u8377\u723e\u8499\u662f\u5982\u4f55\u5f71\u97ff\u6211\u5011\u884c\u70ba\u7684\u6f14\u8b8a\u5462\uff1f\u50ac\u7522\u7d20(<\/span>ocytocine<\/span>)\u662f\u4e00\u7a2e\u7279\u5225\u7684\u8377\u723e\u8499\uff0c\u5728\u8a31\u591a\u793e\u6703\u884c\u70ba\u4e2d\u626e\u6f14\u8981\u89d2\uff0c\u5c24\u5176\u662f\u5728\u6bcd\u5b50\u7684\u4f9d\u6200\u95dc\u4fc2\u4e2d\uff0c\u4ee5\u53ca\u6d88\u9664\u58d3\u529b\u4e0a\u3002\u50ac\u7522\u7d20\u751a\u81f3\u56e0\u70ba\u9019\u500b\u7406\u7531\u800c\u88ab\u7a31\u70ba\u300c\u611b\u60c5\u6fc0\u7d20\u300d\u3002\u6b64\u5916\uff0c\u9084\u6709\u6211\u5011\u9ad4\u5167\u5206\u6ccc\u7684\u76ae\u8cea\u9187(<\/span>cortisol<\/span>)\uff0c\u9019\u662f\u4e00\u7a2e\u53d7\u5230\u58d3\u529b\u5c31\u6703\u589e\u52a0\u7684\u8377\u723e\u8499\u3002\u300d<\/span>*<\/span><\/p>\n

<\/span><\/p>\n

\u6240\u4ee5\uff0c\u6bcd\u8a9e\u7684\u6559\u80b2\u8981\u65e9\uff0c\u96d9\u6bcd\u8a9e\u540c\u6642\u9032\u884c\u4e5f\u662f\u53ef\u4ee5\u7684\u3002\u4e00\u65e6\u904e\u4e86\u9ec3\u91d1\u671f\uff0c\u8a9e\u8a00\u7684\u5b78\u7fd2\uff0c\u7528\u7684\u662f\u8166\u888b\u7684\u53e6\u4e00\u500b\u5340\u57df\uff0c\u5c31\u4e0d\u518d\u662f\u672c\u80fd\u7684\u6bcd\u8a9e\u5340\u4e86\u3002<\/span><\/p>\n

<\/span><\/p>\n

\u800c\u6bcd\u89aa\u548c\u5b69\u5b50\u5982\u679c\u6709\u89aa\u5bc6\u7684\u5171\u540c\u8a9e\u8a00\uff0c\u53ef\u4fc3\u9032\u89aa\u5b50\u4e4b\u9593\u7684\u4f9d\u6200\u95dc\u4fc2(\u4f9d\u983c\u95dc\u4fc2)\uff0c\u5c0d\u5b69\u5b50\u672a\u4f86\u7684\u81ea\u4fe1\u5fc3\uff0c\u5c0d\u4ed6\u4eba\u7684\u4fe1\u4efb\u611f\uff0c\u4ee5\u53ca\u5efa\u7acb\u89aa\u5bc6\u7684\u95dc\u4fc2\u7b49\u7b49\uff0c\u90fd\u6709\u6240\u5e6b\u52a9\u3002<\/span><\/p>\n

<\/span><\/p>\n

\u300c<\/span>……<\/span>\u6210\u5e74\u6642\uff0c\u8377\u723e\u8499\u7684\u4efb\u52d9\u5b8c\u6210\u5f8c\uff0c\u5973\u6027\u7684\u8072\u5e36\u9577\u5341\u4e03\u81f3\u4e8c\u5341\u516c\u91d0\uff0c\u7537\u6027\u7684\u8072\u5e36\u9577\u5ea6\u5f9e\u4e8c\u5341\u4e8c\u81f3\u4e8c\u5341\u4e03\u516c\u91d0\u4e0d\u7b49\u3002<\/span><\/p>\n

<\/span><\/p>\n

\u8072\u5e36\u5171\u6709\u5169\u689d\u3002\u8072\u5e36\u8207\u6c23\u7ba1\u5782\u76f4\uff0c\u5728\u5589\u56a8\u5448\u73fe\u51fa\u4e00\u500b\u5e73\u8eba\u7684<\/span>V<\/span>\u5b57\u578b\uff0c\u5c16\u7aef\u671d\u524d\uff0c\u6b63\u597d\u5728\u5589\u7d50\u7684\u4f4d\u7f6e\u3002<\/span>……<\/span>\u300d<\/span>*<\/span><\/p>\n

<\/span><\/p>\n

\u300c\u8072\u5e36\u7684\u9577\u5ea6\u6c7a\u5b9a\u4e86\u983b\u7387\u3002\u8072\u5e36\u7684\u5f35\u529b\u6c7a\u5b9a\u4e86\u8072\u97f3\u7684\u9ad8\u4f4e\u53ca\u5f37\u5ea6\u3002<\/span><\/p>\n

<\/span><\/p>\n

\u7136\u800c\u8072\u5e36\u7684\u5c3a\u5bf8\u4e26\u4e0d\u662f\u4eba\u8072\u5dee\u7570\u7684\u552f\u4e00\u539f\u56e0\uff1a\u57fa\u56e0\u7279\u5fb5\u4e5f\u6519\u4e86\u4e00\u8173\uff0c\u9084\u6709\u5176\u4ed6\u751f\u7406\u56e0\u7d20\uff0c\u50cf\u662f\u6c23\u7ba1\u3001\u5171\u9cf4\u8154\u3001\u54bd\u90e8\u548c\u5634\u5df4\u7684\u5c3a\u5bf8\u3002\u5171\u9cf4\u8154\u6108\u5bdb\u95ca\uff0c\u767c\u51fa\u7684\u8072\u97f3\u6108\u4f4e\u6c88\uff0c\u6cdb\u97f3\u4e5f\u66f4\u8c50\u5bcc\u3002<\/span><\/p>\n

<\/span><\/p>\n

\u56e0\u6b64\uff0c\u4eba\u8072\u53d7\u5230\u4e86\u5168\u8eab\u689d\u4ef6\u7684\u9650\u5236\u3002\u6bcf\u4e00\u526f\u55d3\u97f3\u90fd\u662f\u7368\u4e00\u7121\u4e8c\uff0c\u7368\u6a39\u4e00\u683c\uff0c\u7d55\u7121\u50c5\u6709\u3002<\/span><\/p>\n

<\/span><\/p>\n

\u5b83\u662f\u8072\u97f3\u548c\u5168\u8eab<\/span>——<\/span>\u7576\u7136\u662f\u8207\u9aa8\u982d\uff0c\u4ee5\u53ca\u76ae\u819a\u3001\u9ecf\u819c\u548c\u4e0d\u540c\u5668\u5b98<\/span>——<\/span>\u5171\u632f\u7684\u7d50\u679c\u3002<\/span><\/p>\n

<\/span><\/p>\n

\u8eab\u9ad4\u597d\u6bd4\u4e00\u5ea7\u6559\u5802\uff0c\u800c\u5589\u982d\u662f\u6559\u5802\u7684\u7ba1\u98a8\u7434\u3002\u300d<\/span>*<\/span><\/p>\n

<\/span><\/p>\n

\u300c<\/span>…….<\/span>\u8981\u597d\u597d\u7167\u9867\u81ea\u5df1\u7684\u80ba\uff0c\u8072\u97f3\u5c31\u6703\u597d\u597d\u7167\u9867\u81ea\u5df1\u3002<\/span>……<\/span>\u300d<\/span>*<\/span><\/p>\n

<\/span><\/p>\n

\u8072\u97f3\u7684\u6e2c\u5ea6\u6709\u4e09\u500b\u9762\u5411\uff1a<\/span><\/p>\n

<\/span><\/p>\n

1. <\/span>\u9ad8\u5ea6\uff0c\u4ee5\u8d6b\u8332<\/span>Hz<\/span>\u70ba\u55ae\u4f4d\uff0c\u5c31\u662f\u6bcf\u79d2\u9707\u52d5\u7684\u9031\u671f\u3002\u7537\u8072\u662f<\/span>150Hz<\/span>\uff0c\u5973\u8072\u662f<\/span>210Hz<\/span>\u3002\u70ba\u4e86\u767c\u51fa\u8072\u97f3\uff0c\u8072\u5e36\u6bcf\u79d2\u8981\u5f80\u5fa9\u632f\u52d5<\/span>150\/210<\/span>\u6b21\uff0c\u4e5f\u662f\u6709\u5920\u7d2f\u4e86\u3002<\/span><\/p>\n

<\/span><\/p>\n

2. <\/span>\u5f37\u5ea6\uff0c\u4ee5\u5206\u8c9d(<\/span>dB<\/span>)\u70ba\u55ae\u4f4d\uff0c\u8072\u97f3\u7684\u5f37\u5ea6\u548c\u76f8\u5c0d\u8072\u58d3\u7684\u5c0d\u6578\u503c\u6210\u6b63\u6bd4\u3002<\/span><\/p>\n

<\/span><\/p>\n

Lp = 20*log10<\/span>(<\/span>Prms\/Pref<\/span>)<\/span> dB **<\/span><\/p>\n

<\/span><\/p>\n

3. <\/span>\u7bc0\u594f\uff1a\u6bcf\u79d2\u5e7e\u62cd\uff0c\u6709\u4e8c\u62cd\u6216\u4e09\u62cd\u7684\u7bc0\u594f\u3002<\/span><\/p>\n

<\/span><\/p>\n

\u4eba\u7684\u8166\u795e\u7d93\u4e2d\u7684\u7b2c\u5341\u5c0d\uff0c\u662f\u552f\u4e00\u4e0d\u5de6\u53f3\u5c0d\u7a31\u7684\u795e\u7d93\u3002<\/span><\/p>\n

<\/span><\/p>\n

\u300e<\/span>……<\/span>\u5f9e\u4e3b\u52d5\u8108\u5f13\u4e0b\u65b9\u901a\u904e\uff0c\u518d\u4e0a\u884c\u81f3\u8116\u5b50\uff0c\u800c\u4e3b\u4e3b\u8981\u90a3\u689d\u5206\u652f\u7e7c\u7e8c\u5411\u4e0b\u5ef6\u4f38\u81f3\u90e8\uff0c\u4e00\u8def\u652f\u914d\u98df\u9053\u3001\u80c3\u3001\u809d\u7b49\u5167\u81df\uff0c\u4ee5\u53ca\u5fc3\u81df\u548c\u80ba\u90e8\uff0c\u56e0\u6b64\u7b2c\u5341\u5c0d\u8166\u795e\u7d93\u6bd4\u5176\u4ed6\u8166\u795e\u7d93\u9084\u8981\u9577\u5f97\u591a\uff0c\u96d6\u7136\u90fd\u662f\u540c\u985e\u7684\u7d30\u80de\u3002<\/span><\/p>\n

<\/span><\/p>\n

\u56e0\u70ba\u4ed6\u662f\u9019\u9ebc\u300c\u6f2b\u7121\u76ee\u7684\u5730\u8db4\u8db4\u8d70\u300d\uff0c\u8981\u70ba\u5b83\u547d\u540d\u4e26\u4e0d\u5bb9\u6613\uff0c\u6240\u4ee5\u5927\u5bb6\u5c31\u7a31\u5b83\u70ba\u300c\u8ff7\u8d70\u795e\u7d93\u300d\u6216\u300c\u80ba\u80c3\u795e\u7d93\u300d\u3002<\/span><\/p>\n

<\/span><\/p>\n

……<\/span>\u64cd\u63a7\u5589\u982d\u3001\u60c5\u7dd2\u53ca\u80c3\u9178\u5012\u6d41\u7684\u4e3b\u5bb0\uff0c\u662f\u8ff7\u8d70\u795e\u7d93\u3002\u540c\u4e00\u689d\u795e\u7d93\u50b3\u5c0e\u4e00\u500b\u77db\u76fe(\u4e3b\u52d5\u808c\u548c\u62ee\u6297\u808c)\u53c8\u727d\u6d89\u5230\u611f\u89ba\u7684\u4fe1\u606f\uff0c\u5728\u4eba\u9ad4\u4e2d\u662f\u7368\u4e00\u7121\u4e8c\u7684\uff0c\u5982\u679c\u9019\u689d\u795e\u7d93\u751f\u4e86\u75c5\u6216\u662f\u65b7\u88c2\uff0c\u8072\u5e36\u5c31\u6703\u9ebb\u75fa\uff0c\u8072\u97f3\u5c31\u6703\u6539\u8b8a\u3002<\/span><\/p>\n

<\/span><\/p>\n

\u8ff7\u8d70\u795e\u7d93\u8b93\u8072\u5e36\u5f97\u4ee5\u6536\u653e\uff0c\u5b83\u63a7\u5236\u8072\u5e36\u7684\u5f35\u529b\u548c\u9577\u5ea6\uff0c\u4e26\u8b93\u8072\u5e36\u5728\u547c\u5438\u671f\u9593\u5f35\u958b\uff0c\u6216\u662f\u5728\u543c\u53eb\u3001\u54b3\u55fd\u3001\u7b11\u3001\u54ed\u3001\u5614\u5410\u3001\u541e\u56a5\u548c\u767c\u8072\u6642\u7dad\u6301\u9589\u5408\u3002<\/span><\/p>\n

<\/span><\/p>\n

\u8ff7\u8d70\u795e\u7d93\u662f\u58d3\u529b\u795e\u7d93\uff0c\u4e3b\u7ba1\u80c3\u6db2\u7684\u5206\u6ccc\uff0c\u4e26\u53ef\u80fd\u52a0\u5287\u80c3\u98df\u9053\u9006\u6d41\uff0c\u6703\u5c0d\u8072\u5e36\u9020\u6210\u4e0d\u5c0f\u7684\u5f71\u97ff\u3002<\/span><\/p>\n

<\/span><\/p>\n

\u5065\u5eb7\u7684\u98f2\u98df\u7fd2\u6163\u3001\u5f9e\u767e\u91cc\u9999\u548c\u8ff7\u8fed\u9999\u820c\u7b49\u690d\u7269\u8403\u53d6\u800c\u6210\u7684\u5438\u5165\u7269\u8cea\u3001\u7de9\u548c\u6108\u4f86\u6108\u6d3b\u8e8d\u7684\u904e\u654f\u72c0\u6cc1\u7b49\uff0c\u9019\u4e9b\u7c21\u55ae\u7684\u7642\u6cd5\u53ef\u4ee5\u8b93\u8072\u5e36\u6709\u66f4\u597d\u7684\u6f64\u6ed1\u5ea6\uff0c\u907f\u514d\u8072\u97f3\u5c08\u696d\u4eba\u58eb\u7684\u5931\u8072\u72c0\u6cc1\u5fa9\u767c\u3002\u300f<\/span>*<\/span><\/p>\n

<\/span><\/p>\n

\u8981\u64c1\u6709\u5065\u5eb7\u7684\u55d3\u97f3\uff0c\u4f5c\u8005\u6574\u7406\u4e86\u4ee5\u4e0b\u5341\u4e8c\u500b\u65b9\u6cd5\uff1a<\/span><\/p>\n

<\/span><\/p>\n

1. <\/span>\u624b\u6a5f\u6703\u8b93\u4eba\u4e0d\u7531\u81ea\u4e3b\u5730\u5927\u8072\u8aaa\u8a71\uff0c\u8981\u907f\u514d\u9577\u6642\u9593\u8b1b\u624b\u6a5f\u3002<\/span><\/p>\n

<\/span><\/p>\n

2. <\/span>\u7a7a\u6c23\u592a\u71b1\u3001\u592a\u4e7e\u71e5\u6216\u592a\u6f6e\u6ebc\uff0c\u6216\u6162\u8dd1\uff0c\u6703\u4f7f\u5f97\u8072\u5e36\u8b8a\u5f97\u4e7e\u71e5\uff0c\u8981\u907f\u514d\u3002<\/span><\/p>\n

<\/span><\/p>\n

3. <\/span>\u98f2\u98df\u7fd2\u6163\u8981\u5065\u5eb7\u3001\u6e05\u6de1\u3002\u4e0d\u8981\u5728\u7761\u524d\u98fd\u98df\uff0c\u514d\u5f97\u8eba\u81e5\u4e0b\u4f86\u80c3\u98df\u9053\u9006\u6d41(\u5e7d\u9580\u6613\u9b06\u5f1b\u7684\u4eba\uff0c\u5c24\u5176\u662f\u4e0a\u4e86\u5e74\u7d00\u7684\u4eba\uff0c\u8981\u7279\u5225\u7559\u610f)\u3002<\/span><\/p>\n

<\/span><\/p>\n

4. <\/span>\u907f\u514d\u9577\u6642\u9593\u63d0\u9ad8\u97f3\u91cf\u8aaa\u8a71\uff0c\u5c24\u5176\u5728\u8072\u97f3\u5435\u96dc\u7684\u5834\u6240\u3002\u9152\u7cbe\u6703\u8b93\u8072\u5e36\u4e7e\u71e5\uff0c\u8981\u907f\u514d\u3002<\/span><\/p>\n

<\/span><\/p>\n

5. <\/span>\u642d\u98db\u6a5f\u6216\u9ad8\u901f\u706b\u8eca\uff0c\u5fc5\u9808\u9ad8\u5206\u8c9d\u8aaa\u8a71\u624d\u807d\u5f97\u5230\uff0c\u6700\u597d\u5664\u8072\u3002\u8259\u5167\u6fd5\u5ea6\u4f4e\u4e5f\u6613\u9020\u6210\u8072\u5e36\u4e7e\u71e5\uff0c\u8981\u591a\u88dc\u5145\u6c34\u4efd\u3002<\/span><\/p>\n

<\/span><\/p>\n

6. <\/span>\u907f\u514d\u5728\u6f6e\u6fd5\u3001\u592a\u71b1\u6216\u904e\u65bc\u4e7e\u71e5\u7684\u623f\u9593\u7761\u89ba\u6216\u4e45\u5f85\u3002<\/span><\/p>\n

<\/span><\/p>\n

7. <\/span>\u8863\u8457\u4e0d\u8981\u592a\u7dca\uff0c\u76ae\u5e36\u4e5f\u4e0d\u8981\u7e4b\u592a\u7dca\uff0c\u4ee5\u514d\u58d3\u8feb\u5230\u80ba\u81d3\u3002<\/span><\/p>\n

<\/span><\/p>\n

8. <\/span>\u63d0\u65e9\u5728\u505a\u8072\u97f3\u8868\u6f14\u524d\u4e8c\u81f3\u4e09\u5c0f\u6642\u524d\u5403\u98df\u7269\uff0c\u4e26\u6e05\u6de1\u70ba\u4e3b\u3002\u4e00\u5c0f\u53e3\u4e00\u5c0f\u53e3\u88dc\u5145\u6c34\u5206\uff0c\u4ee5\u4fdd\u6301\u8072\u5e36\u6fd5\u6f64\u3002<\/span><\/p>\n

<\/span><\/p>\n

9. <\/span>\u4e73\u88fd\u54c1\u3001\u6fc3\u91ac\u548c\u4e73\u916a\u6703\u8b93\u8eab\u9ad4\u7522\u751f\u9ecf\u6db2\uff0c\u8b93\u4eba\u5fc5\u9808\u4e0d\u65b7\u6e05\u5589\u56a8\uff0c\u4e5f\u8981\u907f\u514d\u3002<\/span><\/p>\n

<\/span><\/p>\n

10. <\/span>\u5e7e\u4e4e\u6240\u6709\u7684\u9152\u985e\u90fd\u6709\u4e9e\u786b\u9178\u9e7d\uff0c\u800c\u4e14\u9152\u7cbe\u4ee3\u8b1d\u5229\u5c3f\uff0c\u9019\u4e9b\u6703\u8b93\u8072\u5e36\u8b8a\u4e7e\u71e5\uff0c\u4e5f\u8981\u907f\u514d\u3002<\/span><\/p>\n

<\/span><\/p>\n

11. <\/span>\u8981\u4fdd\u6301\u904b\u52d5\u7684\u7fd2\u6163\uff0c\u589e\u52a0\u808c\u529b\uff0c\u80fd\u8a13\u7df4\u8179\u808c\u6216\u547c\u5438\u7bc0\u594f\u7684\u904b\u52d5\u6700\u597d\uff0c\u8b6c\u5982\u6e38\u6cf3\u3002<\/span><\/p>\n

<\/span><\/p>\n

12. <\/span>\u9069\u5ea6\u935b\u934a\u81ea\u5df1\u7684\u8072\u97f3\uff0c\u907f\u514d\u8072\u5e36\u7684\u808c\u8089\u840e\u7e2e\u3002<\/span><\/p>\n

<\/span><\/p>\n

\u97f3\u6a02\u6703\u5fb7\u5e03\u897f(<\/span>Claude Debussy<\/span>)<\/span> <\/span>\u8aaa\uff0c\u97f3\u6a02\u662f\u97f3\u7b26\u9593\u7684\u4f11\u6b62\u7b26\u3002<\/span><\/p>\n

<\/span><\/p>\n

\u5c0d\u8072\u5e36\u800c\u8a00\uff0c\u5664\u8072\u5c31\u662f\u8072\u97f3\u7684\u4f11\u6b62\u7b26\uff0c\u6709\u6642\u5019\u6bd4\u767c\u51fa\u8072\u97f3\u9084\u91cd\u8981\u3002<\/span><\/p>\n

<\/span><\/p>\n

\u4e16\u754c\u4e0a\u77e5\u540d\u7684\u6b4c\u5531\u5bb6\u90fd\u77e5\u9053\uff0c\u5728\u6f14\u5531\u6703\u4e0a\u53f0\u4e4b\u524d\uff0c\u7d55\u5c0d\u8981\u5664\u8072\u8b93\u8072\u5e36\u5145\u5206\u4f11\u606f\u4e26\u4e14\u907f\u514d\u53d7\u50b7\u3002<\/span><\/p>\n

<\/span><\/p>\n

\u800c\u5982\u679c\u60a8\u7684\u5de5\u4f5c\uff0c\u8981\u7528\u5230\u5f88\u591a\u7684\u55d3\u5b50\uff0c\u90a3\u9ebc\u5e73\u5e38\u5c31\u8981\u8b93\u8072\u5e36\u591a\u4f11\u606f\u3002\u5531\u5361\u62c9<\/span>OK<\/span>\u6216\u5927\u8072\u99e1\u5c0f\u5b69\uff0c\u662f\u7d76\u5c0d\u4e0d\u5b9c\u4e86\u3002<\/span><\/p>\n

<\/span><\/p>\n

*<\/span>\uff1a\u300a\u597d\u8072\u97f3\u7684\u79d1\u5b78\u300b\uff0c<\/span>Jean Abitbol <\/span>\u5c1a·\u4e9e\u7562\u4f2f<\/span> <\/span>\u8457\uff0c\u5f35\u55ac\u739f<\/span> <\/span>\u8b6f<\/span><\/p>\n

<\/span><\/p>\n

**<\/span>\uff1a\u4f9d\u7dad\u57fa\u767e\u79d1\uff1a\u95dc\u65bc\u7528<\/span>dB<\/span>\u4f86\u8861\u91cf\u97f3\u91cf<\/span><\/p>\n

<\/span><\/p>\n

\u4f7f\u7528\u8072\u58d3\u8a08\u7b97\u5206\u8c9d\u6642\u4f7f\u7528\u4e0b\u8ff0\u7248\u672c\u7684\u516c\u5f0f<\/span><\/p>\n

<\/span><\/p>\n

Lp = 20*log10<\/span>(<\/span>Prms\/Pref<\/span>)<\/span> dB <\/span><\/span><\/p>\n

<\/span><\/p>\n

\u5176\u4e2d\u7684<\/span>Pref<\/span>\u662f\u6a19\u6e96\u53c3\u8003\u8072\u58d3\u503c<\/span>20<\/span>\u5fae\u5e15\u3002<\/span>Prms<\/span>\u5c31\u662f\u8981\u8861\u91cf\u7684\u8072\u97f3\u7684\u58d3\u529b\u3002<\/span><\/p>\n

<\/span><\/p>\n

\u5728\u7a7a\u6c23\u4e2d<\/span>1<\/span>\u5e15\u65af\u5361(\u6bcf\u5e73\u65b9\u7c73\u627f\u53d7<\/span>1<\/span>\u725b\u9813\u7684\u529b\uff0c<\/span>1<\/span>\u725b\u9813\u7b49\u65bc\u4e00\u516c\u65a4\u8cea\u91cf\u4e4b\u7269\u9ad4\u7522\u751f\u4e00\u516c\u5c3a\u5e73\u65b9\u79d2\u4e4b\u52a0\u901f\u5ea6\u6642\u627f\u53d7\u4e4b\u529b)\uff0c\u7b49\u65bc<\/span>94<\/span>\u5206\u8c9d\u8072\u58d3\u7d1a\u3002<\/span><\/p>\n

<\/span><\/p>\n

\u4eba\u8033\u5c0d\u8072\u97f3\u611f\u77e5\u5177\u6709\u5f88\u5927\u7684\u52d5\u614b\u7bc4\u570d\u3002\u5f9e\u77ed\u671f\u66b4\u9732\u5373\u6703\u6c38\u4e45\u640d\u5bb3\u807d\u529b\u7684\u8072\u5f37\u5230\u6700\u975c\u7684\u4eba\u8033\u80fd\u807d\u5230\u7684\u8072\u5f37\uff0c\u5176\u6bd4\u503c\u662f<\/span>1<\/span>\u842c\u5104\uff08<\/span>10<\/span>\u7684<\/span>12<\/span>\u6b21\u65b9\uff09\u3002\u9019\u9ebc\u5927\u7684\u6bd4\u503c\u7bc4\u570d\u8868\u793a\u70ba\u5c0d\u6578\u5ea6\u91cf\uff1a<\/span>1<\/span>\u842c\u5104\uff08<\/span>10<\/span>\u7684<\/span>12<\/span>\u6b21\u65b9\uff09\u57fa\u65bc<\/span>10<\/span>\u7684\u5c0d\u6578\u70ba<\/span>12<\/span>\uff0c\u7528\u5206\u8c9d\u8868\u793a\u662f<\/span>240<\/span>\u3002<\/span><\/p>\n

<\/span><\/p>\n

\u7528<\/span>dB<\/span>\u4f86\u8861\u91cf\u8072\u97f3\u7684\u5927\u5c0f\uff0c\u662f\u56e0\u70ba\u4eba\u5c0d\u8072\u97f3\u7684\u611f\u53d7\uff0c\u662f\u8ddf\u8072\u58d3\u7684\u5c0d\u6578\u503c\u6210\u6b63\u6bd4\u3002\u800c\u4e14\uff0c\u7576\u8861\u91cf\u591a\u7a2e\u97f3\u6e90\uff0c\u7531\u65bc\u5c0d\u6578\u7684\u6027\u8cea\uff0c\u53ea\u8981\u628a\u5176\u5206\u5225\u7684<\/span>dB<\/span>\u503c\u52a0\u8d77\u4f86\u5c31\u53ef\u4ee5\u4e86\uff5e<\/span>Log<\/span>(<\/span>A*B*C<\/span>)<\/span> = Log<\/span>(<\/span>A<\/span>)<\/span> + Log<\/span>(<\/span>B<\/span>)<\/span> + Log<\/span>(<\/span>C<\/span>)\u3002<\/span><\/p>\n

<\/span><\/p>\n

2018\/12\/28 <\/span>\u597d\u8072\u97f3\u7684\u79d1\u5b78<\/span> Damakey<\/span><\/p>\n

<\/span><\/p>\n

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<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

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