{"id":15252,"date":"2025-05-29T12:47:11","date_gmt":"2025-05-29T12:47:11","guid":{"rendered":"https:\/\/sistc.com\/?p=15252"},"modified":"2025-05-29T12:54:12","modified_gmt":"2025-05-29T12:54:12","slug":"two-poly-differential-mems-microphone-snr-enhancement","status":"publish","type":"post","link":"https:\/\/sistc.com\/zh\/two-poly-differential-mems-microphone-snr-enhancement\/","title":{"rendered":"\u53cc\u805a\u5408\u7269\u5dee\u5206 MEMS \u9ea6\u514b\u98ce\uff1a\u901a\u8fc7\u7ed3\u6784\u521b\u65b0\u63d0\u9ad8\u4fe1\u566a\u6bd4\u548c\u4f20\u611f\u8303\u56f4"},"content":{"rendered":"<p>\u968f\u7740 MEMS \u9ea6\u514b\u98ce\u4e0d\u65ad\u53d1\u5c55\u4ee5\u6ee1\u8db3\u4e0b\u4e00\u4ee3\u97f3\u9891\u5e94\u7528\u65e5\u76ca\u589e\u957f\u7684\u9700\u6c42\uff0c\u5bf9\u66f4\u9ad8\u4fe1\u566a\u6bd4 (SNR)\u3001\u6269\u5c55\u5e26\u5bbd\u548c\u589e\u5f3a\u7075\u654f\u5ea6\u7684\u9700\u6c42\u6bd4\u4ee5\u5f80\u4efb\u4f55\u65f6\u5019\u90fd\u66f4\u52a0\u8feb\u5207\u3002\u4e3a\u6ee1\u8db3\u8fd9\u4e9b\u9700\u6c42\uff0c\u672c\u7814\u7a76\u63a2\u8ba8\u4e86\u5982\u4f55\u5f00\u53d1\u548c\u5b9e\u65bd\u4e00\u79cd\u65b0\u578b MEMS \u9ea6\u514b\u98ce\u3002 <strong>\u4e24\u6781\u5dee\u5206 MEMS \u9ea6\u514b\u98ce<\/strong> \u5229\u7528 <strong>\u7845\u57fa\u5143\u4ef6\u5fae\u673a\u68b0\u52a0\u5de5\uff08MOSBE\uff09<\/strong> \u8fc7\u7a0b\u3002<\/p><h3 class=\"wp-block-heading\"><strong>\u5dee\u5206 MEMS \u9ea6\u514b\u98ce\u67b6\u6784<\/strong><\/h3><p>\u8fd9\u4e00\u8fdb\u6b65\u7684\u6838\u5fc3\u662f\u4e00\u79cd\u65b0\u9896\u7684 <strong>\u5dee\u5206\u5fae\u673a\u7535\u7cfb\u7edf\u8bbe\u8ba1<\/strong>\uff0c\u7279\u70b9\u662f<\/p><ul class=\"wp-block-list\"><li><strong>\u9876\u90e8\/\u5e95\u90e8\u9694\u819c\u548c\u9876\u90e8\/\u5e95\u90e8\u80cc\u677f<\/strong>\u4f7f\u7528 <strong>\u4e24\u5c42\u591a\u6676\u7845<\/strong>\u4ece\u800c\u5b9e\u73b0\u771f\u6b63\u7684\u5dee\u5206\u7535\u5bb9\u8bfb\u6570\uff0c\u5e76\u589e\u5f3a\u6297\u566a\u80fd\u529b\u3002<\/li>\n\n<li>\u5fae\u673a\u7535\u7cfb\u7edf <strong>\u5bf9\u79f0\u673a\u68b0\u7ed3\u6784<\/strong>\u8fd9\u81ea\u7136\u4f1a\u6d88\u9664\u5171\u6a21\u566a\u58f0\uff0c\u63d0\u9ad8\u6d4b\u91cf\u7ebf\u6027\u5ea6\u3002<\/li><\/ul><p>\u8fd9\u79cd\u67b6\u6784\u53ef\u4ee5 <strong>\u5e73\u884c\u677f\u95f4\u9699\u95ed\u5408\u7535\u5bb9\u5f0f\u4f20\u611f<\/strong>\u8be5\u7cfb\u7edf\u5bf9\u58f0\u538b\u5f15\u8d77\u7684\u5fae\u5c0f\u819c\u7247\u504f\u79fb\u9ad8\u5ea6\u654f\u611f\uff0c\u8fd9\u662f\u4ee5\u4e0b\u5e94\u7528\u7684\u57fa\u672c\u8981\u6c42 <strong>\u8fdc\u573a\u8bed\u97f3\u6355\u6349<\/strong>, <strong>\u53ef\u7a7f\u6234\u8bbe\u5907<\/strong>\u4ee5\u53ca <strong>\u8f85\u52a9\u542c\u529b\u8bbe\u5907<\/strong>.<\/p><h3 class=\"wp-block-heading\"><strong>\u4e3b\u8981\u8bbe\u8ba1\u521b\u65b0<\/strong><\/h3><ol class=\"wp-block-list\"><li><strong>\u65e0\u91ca\u653e\u5b54\u7684 Mesa \u9694\u79bb\u819c\u7247<\/strong><br>\u4f20\u7edf\u7684 MEMS \u9ea6\u514b\u98ce\u901a\u5e38\u5b58\u5728\u4ee5\u4e0b\u95ee\u9898 <strong>\u4f4e\u9891\u58f0\u635f\u8017<\/strong> \u7531\u4e8e\u91ca\u653e\u5b54\u4f1a\u5bfc\u81f4\u7a7a\u6c14\u6cc4\u6f0f\u3002\u8fd9\u79cd\u8bbe\u8ba1\u6d88\u9664\u4e86\u8fd9\u4e9b\u5b54\uff0c\u800c\u662f\u91c7\u7528\u4e86\u4e00\u4e2a <strong>\u4e2d\u7f51\u683c\u7ed3\u6784\u9694\u819c<\/strong>\u5728\u5173\u952e\u7684\u4f4e\u9891\u8303\u56f4\uff0850 \u8d6b\u5179-1 \u5343\u8d6b\u5179\uff09\u5185\uff0c\u6700\u5927\u9650\u5ea6\u5730\u51cf\u5c11\u58f0\u5b66\u963b\u5c3c\u5e76\u63d0\u9ad8\u6027\u80fd\u3002<\/li>\n\n<li><strong>U \u5f62\u5f39\u7c27\u60ac\u6302\u88c5\u7f6e\uff0c\u5177\u6709\u987a\u5e94\u6027\u548c\u521a\u5ea6<\/strong><br>\u9694\u819c\u7531\u4ee5\u4e0b\u90e8\u4ef6\u652f\u6491 <strong>\u67d4\u6027 U \u578b\u7845\u5f39\u7c27<\/strong>\uff0c\u5c06\u7ed3\u6784\u521a\u6027\u4e0e\u5c40\u90e8\u7075\u6d3b\u6027\u76f8\u7ed3\u5408\u3002\u8fd9\u79cd\u6df7\u5408\u65b9\u6cd5\u5728\u589e\u52a0\u6709\u6548\u4f20\u611f\u9762\u79ef\u7684\u540c\u65f6\uff0c\u8fd8\u80fd\u4fdd\u6301 <strong>\u673a\u68b0\u575a\u56fa\u6027<\/strong>\u8fd9\u5bf9\u6076\u52a3\u7684\u73af\u5883\u6761\u4ef6\u81f3\u5173\u91cd\u8981\u3002<\/li>\n\n<li><strong>\u5355\u727a\u7272\u5c42\u5de5\u827a<\/strong><br>\u901a\u8fc7 <strong>\u5355\u5c42\u727a\u7272\u8131\u6a21\u5de5\u827a<\/strong>\u4ece\u800c\u6700\u5927\u9650\u5ea6\u5730\u51cf\u5c11\u7531\u5236\u9020\u5f15\u8d77\u7684\u4f20\u611f\u95f4\u9699\u539a\u5ea6\u53d8\u5316--\u8fd9\u662f\u4ea7\u91cf\u548c\u7535\u5bb9\u7075\u654f\u5ea6\u4e00\u81f4\u6027\u7684\u5173\u952e\u56e0\u7d20\u3002<\/li><\/ol><h3 class=\"wp-block-heading\"><strong>\u6027\u80fd\u57fa\u51c6<\/strong><\/h3><p>\u8be5\u9ea6\u514b\u98ce\u539f\u578b\u57fa\u4e8e\u4e00\u4e2a <strong>800 \u03bcm \u76f4\u5f84\u9694\u819c<\/strong>\u6d4b\u91cf\u7ed3\u679c\u5982\u4e0b<\/p><ul class=\"wp-block-list\"><li>\ud83c\udfa7 <strong>\u5dee\u5206\u7075\u654f\u5ea6<\/strong>:-40.5 dB @ 1 kHz\uff08\u53c2\u8003\uff1a1V\/Pa\uff09<\/li>\n\n<li>\ud83d\udd0a <strong>\u5e26\u5bbd<\/strong>\uff1a50 \u8d6b\u5179\u81f3 20 \u5343\u8d6b\u5179 \u00b13 \u5206\u8d1d<\/li>\n\n<li>\ud83d\udcc8 <strong>\u4fe1\u566a\u6bd4<\/strong>:57.8 dB\uff08\u4e0e\u5546\u7528\u7ea7 MEMS \u9ea6\u514b\u98ce\u76f8\u5f53\uff09<\/li>\n\n<li>\ud83e\udde9 <strong>\u5916\u5f62\u7d27\u51d1<\/strong>:\u9002\u5408\u96c6\u6210\u5230\u591a\u9ea6\u514b\u98ce\u9635\u5217\u4e2d<\/li><\/ul><h3 class=\"wp-block-heading\"><strong>\u5e94\u7528\u4e0e\u96c6\u6210\u6f5c\u529b<\/strong><\/h3><p>\u7531\u4e8e\u6269\u5c55\u4e86\u5e26\u5bbd\u5e76\u63d0\u9ad8\u4e86\u4fe1\u566a\u6bd4\uff0c\u8fd9\u79cd\u9ea6\u514b\u98ce\u8bbe\u8ba1\u975e\u5e38\u9002\u5408\u7528\u4e8e\uff1a<\/p><ul class=\"wp-block-list\"><li><strong>\u8fdc\u573a\u8bed\u97f3\u8bc6\u522b\u7cfb\u7edf<\/strong><\/li>\n\n<li><strong>\u667a\u80fd\u626c\u58f0\u5668\u9635\u5217\u548c\u4f1a\u8bae\u9ea6\u514b\u98ce<\/strong><\/li>\n\n<li><strong>\u6c7d\u8f66\u8bed\u97f3\u547d\u4ee4\u6a21\u5757<\/strong><\/li>\n\n<li><strong>\u533b\u5b66\u542c\u8bca\u6216\u751f\u7269\u58f0\u5b66\u76d1\u6d4b<\/strong><\/li><\/ul><p>\u5bf9\u4e8e\u9700\u8981\u9ad8\u7075\u654f\u5ea6 MEMS \u9ea6\u514b\u98ce\u548c\u575a\u56fa\u8010\u7528\u7684 MEMS \u67b6\u6784\u7684\u5e94\u7528\uff0cSiSTC \u53ef\u63d0\u4f9b\u4e00\u7cfb\u5217\u4f18\u5316\u4ea7\u54c1\u3002\u70b9\u51fb\u6b64\u5904\u4e86\u89e3\u66f4\u591a\u4fe1\u606f\uff1a<br>\ud83d\udd17 <a class=\"\" href=\"https:\/\/sistc.com\/zh\/product-category\/mems-microphone\/\">MEMS \u9ea6\u514b\u98ce\u4ea7\u54c1\u7cfb\u5217 - SiSTC<\/a><\/p><figure class=\"wp-block-image aligncenter size-large is-resized\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"588\" src=\"https:\/\/sistc.com\/wp-content\/uploads\/2025\/05\/\u578b\u53f7\u56fe\u72471-1-1024x588.png\" alt=\"\" class=\"wp-image-15253\" style=\"width:457px;height:auto\" srcset=\"https:\/\/sistc.com\/wp-content\/uploads\/2025\/05\/\u578b\u53f7\u56fe\u72471-1-1024x588.png 1024w, https:\/\/sistc.com\/wp-content\/uploads\/2025\/05\/\u578b\u53f7\u56fe\u72471-1-300x172.png 300w, https:\/\/sistc.com\/wp-content\/uploads\/2025\/05\/\u578b\u53f7\u56fe\u72471-1-768x441.png 768w, https:\/\/sistc.com\/wp-content\/uploads\/2025\/05\/\u578b\u53f7\u56fe\u72471-1-18x10.png 18w, https:\/\/sistc.com\/wp-content\/uploads\/2025\/05\/\u578b\u53f7\u56fe\u72471-1-600x345.png 600w, https:\/\/sistc.com\/wp-content\/uploads\/2025\/05\/\u578b\u53f7\u56fe\u72471-1.png 1464w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure><h3 class=\"wp-block-heading\"><strong>\u4e3a\u4f55\u91cd\u8981<\/strong><\/h3><p>\u5dee\u5206\u5fae\u673a\u7535\u7cfb\u7edf\u9ea6\u514b\u98ce\u8bbe\u8ba1\u4ee3\u8868\u7740\u58f0\u5b66\u4f20\u611f\u6280\u672f\u7684\u672a\u6765<strong>\u5c06 MEMS \u7684\u4f4e\u529f\u8017\u548c\u5fae\u578b\u5316\u4e0e\u4e13\u4e1a\u7ea7\u9ea6\u514b\u98ce\u7684\u4fdd\u771f\u5ea6\u548c\u8303\u56f4\u76f8\u7ed3\u5408<\/strong>.\u901a\u8fc7\u6d88\u9664\u91ca\u653e\u5b54\u548c\u5f15\u5165\u5bf9\u79f0\u53cc\u805a\u5408\u7269\u7ed3\u6784\uff0c\u8fd9\u6b3e\u9ea6\u514b\u98ce\u5728\u4ee5\u4e0b\u65b9\u9762\u8fc8\u51fa\u4e86\u5173\u952e\u4e00\u6b65 <strong>\u7f29\u5c0f\u5fae\u578b\u5316\u4e0e\u6027\u80fd\u4e4b\u95f4\u7684\u5dee\u8ddd<\/strong>.<\/p><h3 class=\"wp-block-heading\"><strong>\u63a8\u8350\u9605\u8bfb\uff08\u5185\u90e8\u94fe\u63a5\uff09<\/strong><\/h3><ul class=\"wp-block-list\"><li><a href=\"https:\/\/sistc.com\/zh\/directional-mems-microphone-automotive-voice-snr\/\">\u7528\u4e8e\u6c7d\u8f66\u8bed\u97f3\u7cfb\u7edf\u7684\u5b9a\u5411 MEMS \u9ea6\u514b\u98ce<\/a><\/li>\n\n<li><a href=\"https:\/\/sistc.com\/zh\/product\/digital-mems-microphone\/\">\u5e26\u68b3\u72b6\u8bfb\u6570\u7684\u9ad8\u4fe1\u566a\u6bd4 MEMS \u9ea6\u514b\u98ce<\/a><\/li><\/ul><p><\/p>","protected":false},"excerpt":{"rendered":"<p>\u968f\u7740 MEMS \u9ea6\u514b\u98ce\u4e0d\u65ad\u53d1\u5c55\u4ee5\u6ee1\u8db3\u4e0b\u4e00\u4ee3\u97f3\u9891\u5e94\u7528\u65e5\u76ca\u589e\u957f\u7684\u9700\u6c42\uff0c\u5bf9\u66f4\u9ad8\u4fe1\u566a\u6bd4 (SNR)\u3001\u66f4\u5bbd\u5e26\u5bbd\u548c\u66f4\u9ad8\u7075\u654f\u5ea6\u7684\u9700\u6c42\u6bd4\u4ee5\u5f80\u4efb\u4f55\u65f6\u5019\u90fd\u66f4\u52a0\u5f3a\u70c8\u3002\u89e3\u51b3 [...]<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","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":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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