{"id":1124,"date":"2018-09-28T03:33:09","date_gmt":"2018-09-28T03:33:09","guid":{"rendered":""},"modified":"2018-09-28T11:33:50","modified_gmt":"2018-09-28T03:33:50","slug":"%e9%ba%a6%e5%85%8b%e9%a3%8e%e7%9a%84%e6%9e%84%e9%80%a0%e5%9b%be%e8%a7%a3+%e9%ba%a6%e5%85%8b%e9%a3%8e%e5%81%8f%e7%bd%ae%e7%94%b5%e8%b7%af%e5%92%8c%e6%bb%a4%e6%b3%a2%e7%94%b5%e8%b7%af","status":"publish","type":"post","link":"http:\/\/www.szryc.com\/?p=1124","title":{"rendered":"\u9ea6\u514b\u98ce\u7684\u6784\u9020\u56fe\u89e3 \u9ea6\u514b\u98ce\u504f\u7f6e\u7535\u8def\u548c\u6ee4\u6ce2\u7535\u8def"},"content":{"rendered":"

\n\t\u3000\u672c\u6587\u4e3b\u8981\u662f\u5173\u4e8e\u9ea6\u514b\u98ce\u7684\u76f8\u5173\u4ecb\u7ecd\uff0c\u5e76\u7740\u91cd\u5bf9\u9ea6\u514b\u98ce\u6784\u9020\u53ca\u5176\u504f\u7f6e\u7535\u8def\u548c\u6ee4\u6ce2\u7535\u8def\u8fdb\u884c\u4e86\u8be6\u5c3d\u7684\u9610\u8ff0\u3002<\/p>\n

\n\t\u3000\u3000\u9ea6\u514b\u98ce<\/h2>\n

\n\t\u3000\u3000\u9ea6\u514b\u98ce\uff0c\u5b66\u540d\u4e3a\u4f20\u58f0\u5668\uff0c\u662f\u5c06\u58f0\u97f3\u4fe1\u53f7\u8f6c\u6362\u4e3a\u7535\u4fe1\u53f7\u7684\u80fd\u91cf\u8f6c\u6362\u5668\u4ef6\uff0c\u7531“Microphone”\u8fd9\u4e2a\u82f1\u6587\u5355\u8bcd\u97f3\u8bd1\u800c\u6765\u3002\u4e5f\u79f0\u8bdd\u7b52\u3001\u5fae\u97f3\u5668\u3002\u4e8c\u5341\u4e16\u7eaa\uff0c\u9ea6\u514b\u98ce\u7531\u6700\u521d\u901a\u8fc7\u7535\u963b\u8f6c\u6362\u58f0\u7535\u53d1\u5c55\u4e3a\u7535\u611f\u3001\u7535\u5bb9<\/u>\u5f0f\u8f6c\u6362\uff0c\u5927\u91cf\u65b0\u7684\u9ea6\u514b\u98ce\u6280\u672f\u9010\u6e10\u53d1\u5c55\u8d77\u6765\uff0c\u8fd9\u5176\u4e2d\u5305\u62ec\u94dd\u5e26\u3001\u52a8\u5708\u7b49\u9ea6\u514b\u98ce\uff0c\u4ee5\u53ca\u5f53\u524d\u5e7f\u6cdb\u4f7f\u7528\u7684\u7535\u5bb9\u9ea6\u514b\u98ce\u548c\u9a7b\u6781\u4f53\u9ea6\u514b\u98ce\u3002<\/p>\n

\n\t <\/div>\n

\n\t\u3000\u3000\u5de5\u4f5c\u539f\u7406<\/p>\n

\n\t\u3000\u3000\u9ea6\u514b\u98ce\u662f\u7531\u58f0\u97f3\u7684\u632f\u52a8\u4f20\u5230\u9ea6\u514b\u98ce\u7684\u632f\u819c\u4e0a\uff0c\u63a8\u52a8\u91cc\u8fb9\u7684\u78c1\u94c1\u5f62\u6210\u53d8\u5316\u7684\u7535\u6d41<\/u>\uff0c\u8fd9\u6837\u53d8\u5316\u7684\u7535\u6d41\u9001\u5230\u540e\u9762\u7684\u58f0\u97f3\u5904\u7406\u7535\u8def\u8fdb\u884c\u653e\u5927\u5904\u7406\u3002\u58f0\u97f3\u662f\u5947\u5999\u7684\u4e1c\u897f\u3002\u6211\u4eec\u542c\u5230\u7684\u5404\u79cd\u4e0d\u540c\u58f0\u97f3\uff0c\u90fd\u662f\u7531\u6211\u4eec\u5468\u56f4\u7a7a\u6c14\u7684\u5fae\u5c0f\u538b\u5dee\u4ea7\u751f\u7684\u3002\u5947\u5999\u4e4b\u5904\u5728\u4e8e\uff0c\u7a7a\u6c14\u80fd\u5c06\u8fd9\u4e9b\u538b\u5dee\u5982\u6b64\u5b8c\u597d\u3001\u5982\u6b64\u771f\u5b9e\u5730\u4f20\u8f93\u76f8\u5f53\u957f\u7684\u8ddd\u79bb\u3002\u5b83\u662f\u7531\u91d1\u5c5e\u9694\u819c\u8fde\u63a5\u5230\u9488\u4e0a\uff0c\u8fd9\u6839\u9488\u5728\u4e00\u5757\u91d1\u5c5e\u7b94\u4e0a\u522e\u64e6\u56fe\u6848\u3002 \u5f53\u60a8\u671d\u7740\u9694\u819c\u8bb2\u8bdd\u65f6\uff0c\u4ea7\u751f\u7684\u7a7a\u6c14\u538b\u5dee\u4f7f\u9694\u819c\u8fd0\u52a8\uff0c\u4ece\u800c\u4f7f\u9488\u8fd0\u52a8\uff0c\u9488\u7684\u8fd0\u52a8\u88ab\u8bb0\u5f55\u5728\u91d1\u5c5e\u7b94\u4e0a\u3002\u968f\u540e\uff0c\u5f53\u60a8\u5728\u91d1\u5c5e\u7b94\u4e0a\u5411\u56de\u8fd0\u884c\u9488\u65f6\uff0c\u5728\u91d1\u5c5e\u7b94\u4e0a\u522e\u64e6\u4ea7\u751f\u7684\u632f\u52a8\u4f1a\u4f7f\u9694\u819c\u8fd0\u52a8\uff0c\u5c06\u58f0\u97f3\u91cd\u73b0\u3002\u8fd9\u79cd\u7eaf\u7cb9\u7684\u673a\u68b0\u7cfb\u7edf\u8fd0\u884c\u663e\u793a\u4e86\u7a7a\u6c14\u4e2d\u7684\u632f\u52a8\u80fd\u4ea7\u751f\u591a\u4e48\u5927\u7684\u80fd\u91cf\uff01\u6240\u6709\u73b0\u4ee3\u7684\u9ea6\u514b\u98ce\u4e0e\u6700\u521d\u7684\u9ea6\u514b\u98ce\u9700\u8981\u5b8c\u6210\u7684\u4e8b\u60c5\u90fd\u5e76\u65e0\u4e8c\u81f4\u3002\u53ea\u4e0d\u8fc7\u5c31\u662f\u4ee5\u7535\u7684\u65b9\u5f0f\uff0c\u4ee3\u66ff\u4e86\u673a\u68b0\u65b9\u5f0f\u3002\u9ea6\u514b\u98ce\u5c06\u7a7a\u6c14\u4e2d\u7684\u53d8\u52a8\u538b\u529b\u6ce2\u8f6c\u5316\u6210\u53d8\u52a8\u7535\u4fe1\u53f7\u3002\u6709\u4e94\u79cd\u5e38\u7528\u6280\u672f\u7528\u6765\u5b8c\u6210\u6b64\u9879\u8f6c\u5316\uff1a<\/p>\n

\n\t\u3000\u3000\u78b3\u6700\u53e4\u8001\u6700\u7b80\u5355\u7684\u9ea6\u514b\u98ce\uff0c\u4f7f\u7528\u78b3\u5c18\u3002\u5386\u53f2\u4e0a\u7b2c\u4e00\u90e8\u7535\u8bdd\u5c31\u4f7f\u7528\u6b64\u9879\u6280\u672f\uff0c\u5982\u4eca\u5728\u67d0\u4e9b\u7535\u8bdd\u4e2d\u4ecd\u5728\u4f7f\u7528\u3002\u5728\u78b3\u5c18\u7684\u4e00\u4fa7\u6709\u5f88\u8584\u7684\u91d1\u5c5e\u6216\u5851\u6599\u9694\u819c\u3002\u5f53\u58f0\u6ce2\u51fb\u6253\u9694\u819c\u65f6\uff0c\u5b83\u4eec\u538b\u7f29\u78b3\u5c18\uff0c\u6539\u53d8\u7535\u963b\u3002\u901a\u8fc7\u7ed9\u78b3\u901a\u7535\uff0c\u6539\u53d8\u4e86\u7684\u7535\u963b\u4f1a\u6539\u53d8\u7535\u6d41\u5927\u5c0f\u3002\u6709\u5173\u66f4\u591a\u4fe1\u606f\uff0c\u8bf7\u53c2\u89c1\u7535\u8bdd\u5de5\u4f5c\u539f\u7406\u3002<\/p>\n

\n\t\u3000\u3000\u52a8\u6001\u52a8\u6001\u9ea6\u514b\u98ce\u5229\u7528\u7535\u78c1\u6548\u5e94\u3002\u5f53\u78c1\u4f53\u901a\u8fc7\u7535\u7ebf\uff08\u6216\u7ebf\u5708\uff09\u65f6\uff0c\u78c1\u4f53\u5728\u7535\u7ebf\u4e2d\u611f\u5e94\u51fa\u7535\u6d41\u3002\u5728\u52a8\u6001\u9ea6\u514b\u98ce\u4e2d\uff0c\u5f53\u58f0\u6ce2\u51fb\u6253\u9694\u819c\u65f6\uff0c\u9694\u819c\u4f1a\u79fb\u52a8\u78c1\u4f53\uff0c\u6b64\u8fd0\u52a8\u4ea7\u751f\u5f88\u5c0f\u7684\u7535\u6d41\u3002<\/p>\n

\n\t\u3000\u3000\u5e26\u72b6\u5728\u5e26\u72b6\u9ea6\u514b\u98ce\u4e2d\uff0c\u4e00\u4e2a\u8584\u7684\u5e26\u72b6\u7269\u60ac\u6302\u5728\u78c1\u573a\u4e2d\u3002\u58f0\u6ce2\u4f1a\u79fb\u52a8\u5e26\u72b6\u7269\uff0c\u4ece\u800c\u6539\u53d8\u6d41\u7ecf\u5b83\u7684\u7535\u6d41\u3002<\/p>\n

\n\t\u3000\u3000\u7535\u5bb9\u5668<\/u>\u7535\u5bb9\u5668\u9ea6\u514b\u98ce\u5b9e\u9645\u4e0a\u662f\u4e00\u4e2a\u7535\u5bb9\u5668\uff0c\u5176\u4e2d\u7535\u5bb9\u5668\u7684\u4e00\u6781\u54cd\u5e94\u58f0\u6ce2\u800c\u8fd0\u52a8\u3002\u8fd0\u52a8\u6539\u53d8\u4e86\u7535\u5bb9\u5668\u7684\u7535\u5bb9\uff0c\u8fd9\u4e9b\u6539\u53d8\u88ab\u653e\u5927\uff0c\u4ece\u800c\u4ea7\u751f\u53ef\u6d4b\u91cf\u7684\u4fe1\u53f7\u3002\u7535\u5bb9\u5668\u9ea6\u514b\u98ce\u901a\u5e38\u4f7f\u7528\u4e00\u4e2a\u5c0f\u7684\u7535\u6c60\uff0c\u4e3a\u7535\u5bb9\u5668\u63d0\u4f9b\u7535\u538b\u3002<\/p>\n

\n\t\u3000\u3000\u6676\u4f53\u67d0\u4e9b\u6676\u4f53\u6539\u53d8\u5f62\u72b6\u65f6\u4f1a\u6539\u53d8\u5b83\u4eec\u7684\u7535\u5c5e\u6027\uff08\u8981\u4e86\u89e3\u6b64\u73b0\u8c61\u7684\u4e00\u4e2a\u4f8b\u5b50\uff0c\u8bf7\u53c2\u89c1\u77f3\u82f1\u8868\u5de5\u4f5c\u539f\u7406\uff09\u3002\u901a\u8fc7\u5c06\u9694\u819c\u8fde\u63a5\u5230\u6676\u4f53\uff0c\u5f53\u58f0\u6ce2\u51fb\u6253\u9694\u819c\u65f6\uff0c\u6676\u4f53\u5c06\u4ea7\u751f\u4fe1\u53f7\u3002<\/p>\n

\n\t\u3000\u3000\u9ea6\u514b\u98ce\u7684\u6784\u9020\u56fe\u89e3<\/h2>\n

\n\t\u3000\u3000\u7269\u7406\u4e2d\u5f88\u591a\u4e8b\u7269\u662f\u76f8\u5bf9\u53ef\u9006\u7684\uff0c\u6bd4\u5982\u8bdd\u7b52\u548c\u626c\u58f0\u5668\uff0c\u540c\u6837\u7684\u6784\u9020\u7531\u4e8e\u56e0\u679c\u5173\u7cfb\u7684\u4e92\u6362\uff0c\u5b9e\u73b0\u4e86\u5f62\u5f0f\u4e0a\u76f8\u5bf9\u3001\u672c\u8d28\u539f\u7406\u5374\u7edf\u4e00\u7684\u529f\u80fd\u3002<\/p>\n

\n\t\u3000\u3000\"\u9ea6\u514b\u98ce\u7684\u6784\u9020\u56fe\u89e3<\/p>\n

\n\t\u3000\u3000\u7532\u56fe\u662f\u8bdd\u7b52\u548c\u626c\u58f0\u5668\u7684\u539f\u7406\u56fe\uff1a\u5f53\u4eba\u4eec\u5bf9\u7740\u8bdd\u7b52\u8bb2\u8bdd\u65f6\uff0c\u58f0\u6ce2\u7684\u632f\u52a8\u4f7f\u5f97\u91d1\u5c5e\u819c\u7247\u632f\u52a8\uff0c\u4ece\u800c\u5728\u97f3\u5708\u4e2d\u4ea7\u751f\u611f\u5e94\u7535\u6d41\uff0c\u5b9e\u73b0\u4e86\u628a\u58f0\u97f3\u4fe1\u53f7\u8f6c\u5316\u6210\u7535\u4fe1\u53f7\uff1b\u800c\u626c\u58f0\u5668\u521a\u597d\u76f8\u53cd\uff0c\u5f53\u53d8\u5316\u7684\u7535\u6d41\u901a\u8fc7\u97f3\u5708\u65f6\uff0c\u97f3\u5708\u5728\u78c1\u573a\u7684\u4f5c\u7528\u4e0b\u4ea7\u751f\u632f\u52a8\uff0c\u4ece\u800c\u628a\u7535\u4fe1\u53f7\u8f6c\u5316\u6210\u58f0\u97f3\u4fe1\u53f7\u3002\u524d\u8005\u662f\u7535\u78c1\u611f\u5e94\u73b0\u8c61\uff0c\u540e\u8005\u662f\u7535\u6d41\u7684\u78c1\u6548\u5e94\u3002\u5f53\u7136\u4e8c\u8005\u901a\u5e38\u662f\u5171\u540c\u4f7f\u7528\u7684\uff0c\u58f0\u97f3\u901a\u8fc7\u8bdd\u7b52\u8f6c\u6362\u540e\uff0c\u7ecf\u653e\u5927\u7535\u8def\u5904\u7406\u7531\u626c\u58f0\u5668\u64ad\u653e\u51fa\u6765\u3002<\/p>\n

\n\t\u3000\u3000\u4e59\u56fe\u662f\u78c1\u5e26\u5f55\u97f3\u673a\u7684\u539f\u7406\u56fe\uff1a\u5f55\u97f3\u65f6\uff0c\u5df2\u7ecf\u88ab\u8f6c\u5316\u6210\u7535\u4fe1\u53f7\u7684\u58f0\u97f3\uff0c\u5728\u7ecf\u8fc7\u78c1\u5e26\u4e0d\u540c\u533a\u57df\u7684\u65f6\u5019\uff0c\u5c06\u78c1\u5e26\u4e0a\u7684\u78c1\u7c89\u78c1\u5316\uff0c\u4e0d\u7531\u6b64\uff0c\u78c1\u5e26\u8bb0\u5f55\u4e86\u58f0\u97f3\u7684\u53d8\u5316\uff0c\u8fd9\u4e00\u6b65\u9aa4\u5c5e\u4e8e\u7535\u6d41\u7684\u78c1\u6548\u5e94\uff1b\u653e\u97f3\u65f6\uff0c\u78c1\u5e26\u7ecf\u8fc7\u78c1\u5934\uff0c\u5728\u7ebf\u5708\u4e2d\u4ea7\u751f\u53d8\u5316\u7684\u611f\u5e94\u7535\u6d41\uff0c\u8fd9\u4e00\u6b65\u9aa4\u662f\u7535\u78c1\u611f\u5e94\u73b0\u8c61\u3002<\/p>\n

\n\t\u3000\u3000\u5f53\u7136\u5728\u5f55\u97f3\u3001\u653e\u97f3\u8fc7\u7a0b\u4e2d\uff0c\u5408\u5e76\u4e86\u8bdd\u7b52\u3001\u626c\u58f0\u5668\uff0c\u6574\u4e2a\u5f55\u97f3\u3001\u653e\u97f3\u8fc7\u7a0b\u4e2d\u90fd\u4f34\u968f\u7740\u7535\u6d41\u7684\u78c1\u6548\u5e94\u3001\u7535\u78c1\u611f\u5e94\u73b0\u8c61\u3002<\/p>\n

\n\t\u3000\u3000\u5728\u73b0\u4ee3\u793e\u4f1a\uff0c\u60f3\u8981\u627e\u5230\u78c1\u5e26\u5f55\u97f3\u673a\uff0c\u4f30\u8ba1\u8981\u5230\u65e7\u8d27\u5e02\u573a\u4e0a\u4e86\uff0c\u8fd9\u4e5f\u6210\u4e3a\u4e86\u5bb6\u7528\u7535\u5b50\u8bbe\u5907\u53d1\u5c55\u5386\u53f2\u4e0a\u7684\u4e00\u7b14\uff0c\u4f30\u8ba1\u5728\u672a\u6765\u5f88\u591a\u5e74\uff0c\u80fd\u591f\u5728\u535a\u7269\u9986\u4e2d\u770b\u5230\u5b83\u3002<\/p>\n

\n\t\u3000\u3000\u9ea6\u514b\u98ce\u504f\u7f6e\u7535\u8def\u548c\u6ee4\u6ce2\u7535\u8def<\/h2>\n

\n\t\u3000\u3000\u97f3\u9891\u7535\u8def\u7684ECM\u8fde\u63a5<\/p>\n

\n\t\u3000\u3000ECM\u6709\u4e24\u6839\u4fe1\u53f7\u5f15\u7ebf\uff1a\u8f93\u51fa\u548c\u63a5\u5730\u3002\u9ea6\u514b\u98ce\u901a\u8fc7\u8f93\u51fa\u5f15\u811a\u4e0a\u7684\u76f4\u6d41\u504f\u7f6e\u5b9e\u73b0\u504f\u7f6e\u3002\u8fd9\u79cd\u504f\u7f6e\u901a\u5e38\u901a\u8fc7\u504f\u7f6e\u7535\u963b\u63d0\u4f9b\uff0c\u800c\u4e14\u9ea6\u514b\u98ce\u8f93\u51fa\u548c\u524d\u7f6e\u653e\u5927\u5668<\/u>\u8f93\u5165\u4e4b\u95f4\u7684\u4fe1\u53f7\u4f1a\u7ecf\u8fc7\u4ea4\u6d41\u8026\u5408<\/u>\u3002<\/p>\n

\n\t\u3000\u3000ECM\u7684\u5e38\u89c1\u7528\u4f8b\u662f\u5728\u624b\u673a\u4e0a\u8fde\u63a5\u7684\u8033\u673a\u4e2d\u7528\u4f5c\u5185\u8054\u5f0f\u8bed\u97f3\u9ea6\u514b\u98ce\u3002\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u8033\u673a\u548c\u624b\u673a\u4e4b\u95f4\u7684\u8fde\u63a5\u5668\u6709\u56db\u4e2a\u5f15\u811a\uff1a\u5de6\u4fa7\u97f3\u9891\u8f93\u51fa\u3001\u53f3\u4fa7\u97f3\u9891\u8f93\u51fa\u3001\u9ea6\u514b\u98ce\u4fe1\u53f7\u4ee5\u53ca\u63a5\u5730\u3002\u5728\u8fd9\u79cd\u8bbe\u8ba1\u4e2d\uff0cECM\u7684\u8f93\u51fa\u4fe1\u53f7\u548c\u76f4\u6d41\u504f\u7f6e\u7535\u538b\u5728\u540c\u4e00\u4fe1\u53f7\u7ebf\u8def\u4e2d\u4f20\u8f93\u3002\u504f\u7f6e\u7535\u538b\u6e90\u901a\u5e38\u7ea6\u4e3a2.2 V\u3002<\/p>\n

\n\t\u3000\u3000MEMS\u9ea6\u514b\u98ce\u533a\u522b<\/p>\n

\n\t\u3000\u3000\u6a21\u62dfMEMS\u9ea6\u514b\u98ce\u7684\u4fe1\u53f7\u5f15\u811a\u4e0a\u4e0d\u4f7f\u7528\u8f93\u5165\u504f\u7f6e\u7535\u538b\u3002\u4f46\u662f\uff0c\u5b83\u662f\u4e00\u79cd\u4e09\u7aef\u5668\u4ef6\uff0c\u6709\u4e0d\u540c\u7684\u5f15\u811a\u5206\u522b\u7528\u4e8e\u7535\u6e90\u3001\u63a5\u5730\u548c\u8f93\u51fa\u3002VDD\u5f15\u811a\u7684\u4f9b\u7535\u7535\u538b\u4e00\u822c\u4e3a 1.8\u81f33.3 V\u3002MEMS\u9ea6\u514b\u98ce\u7684\u4fe1\u53f7\u8f93\u51fa\u901a\u8fc7\u76f4\u6d41\u7535\u538b\u5b9e\u73b0\u504f\u7f6e\uff0c\u4e00\u822c\u7b49\u4e8e\u6216\u63a5\u8fd10.8 V\u3002\u5728\u8bbe\u8ba1\u4e2d\uff0c\u8be5\u8f93\u51fa\u4fe1\u53f7\u901a\u5e38\u4f1a\u7ecf\u8fc7\u4ea4\u6d41\u8026\u5408\u3002<\/p>\n

\n\t\u3000\u3000\"\u9ea6\u514b\u98ce\u7684\u6784\u9020\u56fe\u89e3<\/p>\n

\n\t\u3000\u3000\u56fe1. ECM\u7535\u8def\u8fde\u63a5<\/p>\n

\n\t\u3000\u3000\u76f8\u5bf9\u4e8eECM\uff0c\u4f7f\u7528MEMS\u9ea6\u514b\u98ce\u7684\u5173\u952e\u4f18\u52bf\u5728\u4e8e\u5b83\u7684\u7535\u6e90\u6291\u5236\uff08PSR\uff09\u6027\u80fd\u66f4\u5f3a\u3002MEMS\u9ea6\u514b\u98ce\u7684PSR\u901a\u5e38\u81f3\u5c11\u4e3a70 dBV\uff0cECM\u5374\u6839\u672c\u6ca1\u6709\u7535\u6e90\u6291\u5236\u80fd\u529b\uff0c\u56e0\u4e3a\u504f\u7f6e\u7535\u538b\u76f4\u63a5\u901a\u8fc7\u7535\u963b\u8fde\u63a5\u81f3\u9ea6\u514b\u98ce\u3002<\/p>\n

\n\t\u3000\u3000\u7528MEMS\u9ea6\u514b\u98ce\u53d6\u4ee3ECM\u65f6\u9700\u8981\u8fdb\u884c\u7684\u7535\u8def\u66f4\u6539<\/p>\n

\n\t\u3000\u3000\u5bf9\u4e8e\u539f\u672c\u56f4\u7ed5ECM\u8bbe\u8ba1\u7684\u7cfb\u7edf\uff0c\u6539\u7528MEMS\u9ea6\u514b\u98ce\u65f6\u9762\u4e34\u7684\u57fa\u672c\u96be\u9898\u662f\uff0c\u7535\u6e90\u548c\u9ea6\u514b\u98ce\u8f93\u51fa\u6ca1\u6709\u5355\u72ec\u7684\u4fe1\u53f7\uff0c\u4f8b\u5982\u4f7f\u7528\u8033\u673a\u5f0f\u9ea6\u514b\u98ce\u65f6\u3002\u5982\u679c\u5bf9\u7535\u8def\u8fdb\u884c\u4e00\u4e9b\u5c0f\u7684\u66f4\u6539\uff0c\u5c31\u53ef\u4ee5\u5728\u6b64\u7c7b\u8bbe\u8ba1\u4e2d\u4f7f\u7528MEMS\u9ea6\u514b\u98ce\u3002\u9996\u5148\uff0c\u5fc5\u987b\u5c06\u4fe1\u53f7\u94fe\u4e2d\u76f4\u6d41\u504f\u7f6e\u63d0\u4f9b\u7684\u4e0b\u6e38\u4fe1\u53f7\u4e0e\u9ea6\u514b\u98ce\u7684\u8f93\u51fa\u4fe1\u53f7\u9694\u79bb\u3002\u5176\u6b21\uff0c\u5fc5\u987b\u5c06\u6b64\u76f4\u6d41\u504f\u7f6e\u7528\u4e8e\u4e3a MEMS\u9ea6\u514b\u98ce\u4f9b\u7535\uff0c\u800c\u4e14\u4e0d\u80fd\u8ba9\u9ea6\u514b\u98ce\u7684\u8f93\u51fa\u4fe1\u53f7\u5e72\u6270\u7535\u6e90\u3002\u76f4\u6d41\u504f\u7f6e\u7684\u9694\u79bb\u53ef\u901a\u8fc7\u4ea4\u6d41\u8026\u5408\u7535\u5bb9\u5b9e\u73b0\uff0cMEMS\u9ea6\u514b\u98ce\u7684\u7535\u6e90\u53ef\u901a\u8fc7\u4ed4\u7ec6\u8bbe\u8ba1\u7684\u7535\u8def\u63d0\u4f9b\uff0c\u8be5\u7535\u8def\u5145\u5f53\u5206\u538b\u5668\u548c\u4f4e\u901a\u6ee4\u6ce2\u5668<\/u>\u3002\u4ee5\u4e0b\u8bbe\u8ba1\u4e2d\u4f7f\u7528\u4e86ADMP504 MEMS\u9ea6\u514b\u98ce\u4f5c\u4e3a\u793a\u4f8b\u3002\u5176\u4e2d\u7528\u5230\u4e86\u4e00\u4e2a2.2 k \u504f\u7f6e\u7535\u963b\u3002<\/p>\n

\n\t\u3000\u3000\"\u9ea6\u514b\u98ce\u7684\u6784\u9020\u56fe\u89e3<\/p>\n

\n\t\u3000\u3000\u56fe2. \u5c06\u4e00\u6839\u7ebf\u7528\u4e8e\u7535\u6e90\u548c\u8f93\u51fa\u4fe1\u53f7\u7684MEMS\u9ea6\u514b\u98ce<\/p>\n

\n\t\u3000\u3000\u56fe2\u663e\u793a\u4e86\u4e00\u4e2a\u5b9e\u73b0\u4e0a\u8ff0\u529f\u80fd\u7684\u8bbe\u8ba1\u793a\u4f8b\u3002\u5728\u8033\u673a\u7684\u8bbe\u8ba1\u4e2d\uff0c\u8033\u673a\u8fde\u63a5\u5668\u5de6\u4fa7\u7684\u7535\u8def\u90e8\u5206\u5c06\u4f1a\u5728\u5b9e\u9645\u8033\u673a\u4e2d\uff0c2.2 k\u504f\u7f6e\u7535\u963b\u548c1 F\u4ea4\u6d41\u8026\u5408\u7535\u5bb9\u5219\u5728\u6e90\u8bbe\u5907\uff08\u4f8b\u5982\u667a\u80fd\u624b\u673a\uff09\u4e2d\u3002\u7535\u963bR1\u548cR\u504f\u7f6e\u5f62\u6210\u5206\u538b\u5668\uff0cMEMS\u9ea6\u514b\u98ce\u5c06V\u504f\u7f6e\u7535\u538b\u964d\u81f3VDD\u5f15\u811a\u7684\u4f9b\u7535\u7535\u538b\u3002\u6839\u636eV\u504f\u7f6e\u3001R\u504f\u7f6e\u548c\u6240\u9700VDD\u7535\u538b\u7684\u503c\uff0c\u7535\u963bR1\u53ef\u80fd\u9700\u8981\u975e\u5e38\u5c0f\uff0c\u5982\u4e0b\u4f8b\u6240\u793a\u3002\u8981\u8ba1\u7b97\u6240\u9700\u7684\u4e32\u8054\u7535\u963b\uff08R\u504f\u7f6e + R1\uff09\uff0c\u53ef\u5c06\u9ea6\u514b\u98ce\u5efa\u6a21\u4e3a\u4e00\u4e2a\u7535\u963b\uff0c\u5c06\u6709\u56fa\u5b9a\u7535\u6d41\u4ece\u4e2d\u6d41\u8fc7\u3002VDD = 1.8 V\u65f6\uff0cADMP504\u7684\u5178\u578b\u4f9b\u7535\u7535\u6d41\u4e3a180 A\u3002\u6839\u636e\u6b27\u59c6\u5b9a\u5f8b\uff0cVDD\u4e0a\u7684\u7535\u538b\u4e3a1.8 V\u65f6\uff0c\u8be5\u9ea6\u514b\u98ce\u53ef\u5efa\u6a21\u4e3a\u4e00\u4e2a10 k \u7684\u7535\u963b\u3002\u8981\u6c42\u89e3\u5408\u9002\u7684\u7535\u963bR1\u503c\uff0c\u6240\u7528\u7684\u5206\u538b\u5668\u516c\u5f0f\u4e3a\uff1a<\/p>\n

\n\t\u3000\u3000\uff3b\u9ea6\u514b\u98ceVDD\uff3d = \uff3b\u504f\u7f6e\u7535\u538b\uff3d &TI<\/u>mes;\uff0810 k \/\uff0810 k + R1 + R\u504f\u7f6e<\/p>\n

\n\t\u3000\u3000\u6839\u636e\u6b64\u516c\u5f0f\u53ef\u4ee5\u7b97\u51fa\uff0c\u4e00\u4e2a2.2 k \u7684R\u504f\u7f6e\u7535\u963b\u548c\u4e00\u4e2a499\u7684R1\u7535\u963b\u4f1a\u4ece2.2 V\u504f\u7f6e\u7535\u538b\u5206\u51fa1.73 V\u5230\u9ea6\u514b\u98ce\u7684VDD\u4e0a\u3002\u5728\u9009\u62e9R1\u503c\u65f6\uff0c\u9700\u8981\u8fdb\u884c\u6743\u8861\u53d6\u820d;\u5982\u4e0b\u6240\u793a\uff0c\u6b64\u503c\u592a\u5927\u4f1a\u5bfc\u81f4VDD\u8fc7\u5c0f\uff0c\u4f46\u4e3a\u4e86\u9632\u6b62C2\u8fc7\u5927\uff0c\u53c8\u4e0d\u80fd\u8ba9\u6b64\u503c\u592a\u5c0f\u3002 \u5982\u4ecaMEMS\u9ea6\u514b\u98ce\u6b63\u9010\u6e10\u53d6\u4ee3\u97f3\u9891\u7535\u8def\u4e2d\u7684\u9a7b\u6781\u4f53\u7535\u5bb9\u9ea6\u514b\u98ce\uff08ECM\uff09\u3002ECM\u548cMEMS\u8fd9\u4e24\u79cd\u9ea6\u514b\u98ce\u7684\u529f\u80fd\u76f8\u540c\uff0c\u4f46\u5404\u81ea\u548c\u7cfb\u7edf\u5176\u4f59\u90e8\u5206\u4e4b\u95f4\u7684\u8fde\u63a5\u5374\u4e0d\u4e00\u6837\u3002\u672c\u5e94\u7528\u7b14\u8bb0\u5c06\u4f1a\u4ecb\u7ecd\u8fd9\u4e9b\u533a\u522b\uff0c\u5e76\u6839\u636e\u4e00\u4e2a\u7b80\u5355\u7684\u57fa\u4e8eMEMS\u9ea6\u514b\u98ce\u7684\u66ff\u6362\u7535\u8def\u63d0\u4f9b\u8bbe\u8ba1\u8be6\u60c5\u3002<\/p>\n

\n\t\u3000\u3000\"\u9ea6\u514b\u98ce\u7684\u6784\u9020\u56fe\u89e3<\/p>\n

\n\t\u3000\u3000\u56fe3. \u5206\u538b\u5668\u6a21\u578b<\/p>\n

\n\t\u3000\u3000\u56fe3\u663e\u793a\u4e86\u8be5\u5206\u538b\u5668\u7684\u4e24\u79cd\u4e0d\u540c\u6a21\u578b\u3002\u5de6\u4fa7\uff0cADMP504\u9ea6\u514b\u98ce\u5efa\u6a21\u4e3a180 A\u7535\u6d41\u6e90;\u53f3\u4fa7\uff0c\u9ea6\u514b\u98ce\u5219\u5efa\u6a21\u4e3a\u5177\u67091.8 V VDD\u768410 k \u7535\u963b\u3002<\/p>\n

\n\t\u3000\u3000\u7535\u5bb9C2\u548c\u7535\u963bR1\u5f62\u6210\u4f4e\u901a\u6ee4\u6ce2\u5668\uff0c\u7528\u4e8e\u5bf9\u7535\u538b\u4f9b\u7535\u4fe1\u53f7\u4e2d\u8f93\u51fa\u7684\u9ea6\u514b\u98ce\u97f3\u9891\u8fdb\u884c\u6ee4\u6ce2\u3002\u8fd9\u79cd\u6ee4\u6ce2\u5668\u8f6c\u6298\u9891\u7387\u5e94\u8be5\u8fdc\u4f4e\u4e8e\u9ea6\u514b\u98ce\u672c\u8eab\u7684\u6ee4\u6ce2\u5668\u8f83\u4f4e\u8f6c\u6298\u9891\u7387\u3002\u5c06\u4f4e\u901a\u6ee4\u6ce2\u5668\u8bbe\u8ba1\u4e3a\u81f3\u5c11\u4f4e\u4e8e\u9ea6\u514b\u98ce\u8f83\u4f4e\u8f6c\u6298\u9891\u7387\u7684\u4e24\u4e2a\u500d\u9891\u7a0b\uff0c\u8fd9\u4f1a\u662f\u4e00\u4e2a\u597d\u7684\u5f00\u7aef\u3002\u5bf9\u4e8eADMP504\uff0c\u6b64\u8f6c\u6298\u9891\u7387\u4e3a100 Hz\u300210 F\u7684\u7535\u5bb9\u548c499 \u7684R1\u7535\u963b\u53ef\u5b9e\u73b0\u8f6c\u6298\u9891\u7387\u4e3a31 Hz\u7684\u6ee4\u6ce2\u5668\u3002\u8f83\u5927\u7684\u7535\u5bb9\u6216\u7535\u963b\u4f1a\u8fdb\u4e00\u6b65\u964d\u4f4e\u6b64\u8f6c\u6298\u9891\u7387\uff0c\u4f46\u662f\u8be5\u6ee4\u6ce2\u5668\u7684\u7535\u963b\u5927\u5c0f\u5fc5\u987b\u4e0e\u5b83\u5bf9\u5206\u538b\u5668\u7684\u8d21\u732e\u4fdd\u6301\u5e73\u8861\uff0c\u5176\u4e2d\uff0c\u5206\u538b\u5668\u4f1a\u5411\u9ea6\u514b\u98ce\u63d0\u4f9bVDD\u3002\u4f4e\u901a\u6ee4\u6ce2\u5668\u7684−3 dB\u70b9\u7684\u8ba1\u7b97\u516c\u5f0f\u5982\u4e0b\uff1a<\/p>\n

\n\t\u3000\u3000f−3 dB = 1\/\uff082π &TImes; R1 &TImes; C2\uff09<\/p>\n

\n\t\u3000\u3000\u5176\u4e2d\uff1a<\/p>\n

\n\t\u3000\u3000R1\u4e3a\u5206\u538b\u5668\u4e2d\u7684\u7535\u963b\u3002<\/p>\n

\n\t\u3000\u3000C2\u4e3a\u4f4e\u901a\u6ee4\u6ce2\u5668\u7535\u5bb9\u3002<\/p>\n

\n\t\u3000\u3000\u7535\u5bb9C1\u5bf9\u9ea6\u514b\u98ce\u8f93\u51fa\u8fdb\u884c\u4ea4\u6d41\u8026\u5408\uff0c\u8fd9\u6837\u5b83\u7684\u504f\u7f6e\u8f93\u51fa\u5c31\u4f1a\u4e0e\u901a\u8fc7\u624b\u673a\u63d0\u4f9b\u7684\u9ea6\u514b\u98ce\u504f\u7f6e\u7535\u538b\u9694\u79bb\u3002\u5728\u7ed9\u5b9a\u7684VDD\u6761\u4ef6\u4e0b\uff0c\u51ed\u501fR\u504f\u7f6e\u3001R1\u548c\u9ea6\u514b\u98ce\u7684\u7b49\u6548\u7535\u963b\uff0c\u8be5\u7535\u5bb9\u8fd8\u4f1a\u5f62\u6210\u9ad8\u901a<\/u>\u6ee4\u6ce2\u5668\u3002\u8ba1\u7b97\u9ad8\u901a\u6ee4\u6ce2\u5668\u8f6c\u6298\u9891\u7387\u65f6\u8981\u8003\u8651\u7684\u603b\u7535\u963b\u4e3a\u4e0eR\u504f\u7f6e\u5e76\u8054\u7684RMIC\u548cR1\u7684\u4e32\u8054\u7535\u963b\u3002\u6b64\u7535\u963b\u7684\u8ba1\u7b97\u516c\u5f0f\u4e3a<\/p>\n

\n\t\u3000\u3000R\u603b =\uff08\uff08RMIC + R1\uff09 &TImes; R\u504f\u7f6e\uff09\/\uff08RMIC + R1 + R\u504f\u7f6e\uff09<\/p>\n

\n\t\u3000\u3000\u5bf9\u4e8e\u6b64\u5904\u7684\u793a\u4f8b\uff0cR\u603b = 1810 \u3002\u9ad8\u901a\u6ee4\u6ce2\u5668\u8f6c\u6298\u9891\u7387\u4e3a\uff1a<\/p>\n

\n\t\u3000\u3000f−3 dB = 1\/\uff082π\uff08R\u603b × C1\uff09<\/p>\n

\n\t\u3000\u3000\u8981\u8ba9\u6ee4\u6ce2\u5668\u8f6c\u6298\u9891\u7387\u81f3\u5c11\u4f4e\u4e8eADMP504\u4f4e\u9891\u6eda\u964d\u9891\u7387100 Hz\u4e00\u4e2a\u500d\u9891\u7a0b\u7684\u6ee4\u6ce2\u5668\u8f6c\u6298\u9891\u7387\u4e3a100 Hz\uff0cC1\u81f3\u5c11\u5e94\u8be5\u4e3a1.8 F\u3002<\/p>\n

\n\t\u3000\u3000\"\u9ea6\u514b\u98ce\u7684\u6784\u9020\u56fe\u89e3<\/p>\n

\n\t\u3000\u3000\u56fe4. \u91c7\u7528ADMP504 MEMS\u9ea6\u514b\u98ce\u7684\u7535\u8def<\/p>\n

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