{"id":1180,"date":"2024-06-24T18:11:40","date_gmt":"2024-06-24T10:11:40","guid":{"rendered":"https:\/\/ecmicrophones.com\/?p=1180"},"modified":"2026-03-05T12:38:56","modified_gmt":"2026-03-05T04:38:56","slug":"miniature-microphones-technology-and-applications","status":"publish","type":"post","link":"https:\/\/ecmicrophones.com\/ja\/miniature-microphones-technology-and-applications\/","title":{"rendered":"\u5c0f\u578b\u30de\u30a4\u30af\u30ed\u30d5\u30a9\u30f3\uff1a\u6280\u8853\u3068\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3"},"content":{"rendered":"

\u5c0f\u578b\u30de\u30a4\u30af\u306f\u3001\u4e16\u754c\u4e2d\u3067\u6700\u3082\u5e83\u304f\u751f\u7523\u3055\u308c\u3066\u3044\u308b\u30de\u30a4\u30af\u306e\u7a2e\u985e\u3067\u3001\u4e3b\u306b\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8 \u30de\u30a4\u30af\u3068 MEMS (\u5fae\u5c0f\u96fb\u6c17\u6a5f\u68b0\u30b7\u30b9\u30c6\u30e0) \u30de\u30a4\u30af\u306b\u5206\u985e\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30de\u30a4\u30af\u306f\u3001\u643a\u5e2f\u96fb\u8a71\u3084\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc\u304b\u3089 Bluetooth \u30d8\u30c3\u30c9\u30bb\u30c3\u30c8\u307e\u3067\u3001\u65e5\u5e38\u7684\u306b\u4f7f\u7528\u3055\u308c\u308b\u30c7\u30d0\u30a4\u30b9\u306b\u4e0d\u53ef\u6b20\u306a\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3067\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u3053\u308c\u3089 2 \u7a2e\u985e\u306e\u5c0f\u578b\u30de\u30a4\u30af\u306e\u52d5\u4f5c\u539f\u7406\u3068\u7528\u9014\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n\n\n

\n
\"\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30de\u30a4\u30af\u3068MEMS\uff08\u5fae\u5c0f\u96fb\u6c17\u6a5f\u68b0\u30b7\u30b9\u30c6\u30e0\uff09\u30de\u30a4\u30af\"
\u5de6\u304b\u3089<\/strong> \u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30de\u30a4\u30af\u30ed\u30db\u30f3\u3001SMD\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30de\u30a4\u30af\u30ed\u30db\u30f3\u3001\u30a2\u30ca\u30ed\u30b0\u30b7\u30ea\u30b3\u30f3\u30de\u30a4\u30af\u30ed\u30db\u30f3\u3001\u30c7\u30b8\u30bf\u30eb\u30b7\u30ea\u30b3\u30f3\u30de\u30a4\u30af\u30ed\u30db\u30f3\u3002<\/figcaption><\/figure>\n<\/div>\n\n\n

\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30de\u30a4\u30af<\/h2>\n\n\n\n

\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8 \u30de\u30a4\u30af\u306f\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8 \u30b3\u30f3\u30c7\u30f3\u30b5\u30fc (ECM) \u30de\u30a4\u30af\u3068\u3082\u547c\u3070\u308c\u3001\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u3068\u547c\u3070\u308c\u308b\u8a98\u96fb\u4f53\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u3053\u306e\u8a98\u96fb\u4f53\u306f\u672c\u8cea\u7684\u306b\u96fb\u8377\u3092\u5e2f\u3073\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u56fa\u6709\u306e\u96fb\u8377\u304c\u30c0\u30a4\u30e4\u30d5\u30e9\u30e0\u3068\u3068\u3082\u306b\u30b3\u30f3\u30c7\u30f3\u30b5\u3092\u5f62\u6210\u3057\u3001\u5b9f\u8cea\u7684\u306b\u72ec\u81ea\u306e\u30d0\u30a4\u30a2\u30b9\u96fb\u5727\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/p>\n\n\n

\n
\"\u30d4\u30f3\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30de\u30a4\u30af\"
\u30d7\u30e9\u30b0\u30a4\u30f3\u30fb\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30fb\u30de\u30a4\u30af\u30ed\u30d5\u30a9\u30f3\u3002<\/figcaption><\/figure>\n<\/div>\n\n\n

\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8 \u30de\u30a4\u30af\u306f\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u5909\u63db\u306b FET (\u96fb\u754c\u52b9\u679c\u30c8\u30e9\u30f3\u30b8\u30b9\u30bf) \u3092\u5fc5\u8981\u3068\u3057\u307e\u3059\u3002\u5916\u90e8\u30d0\u30a4\u30a2\u30b9\u96fb\u5727\u306f\u4e0d\u8981\u3067\u3001\u56de\u8def\u8a2d\u8a08\u304c\u7c21\u7d20\u5316\u3055\u308c\u3001\u901a\u5e38\u306f FET \u306e\u96fb\u6e90\u306e\u307f\u304c\u5fc5\u8981\u3067\u3059\u3002\u591a\u304f\u306e\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8 \u30de\u30a4\u30af\u306f FET \u3092\u30de\u30a4\u30af \u30ab\u30d7\u30bb\u30eb\u5185\u306b\u76f4\u63a5\u7d71\u5408\u3057\u30012 \u3064\u306e\u63a5\u7d9a\u7aef\u5b50\u306e\u307f\u3092\u9732\u51fa\u3055\u305b\u307e\u3059\u3002\u88fd\u9020\u6280\u8853\u306e\u9032\u6b69\u306b\u3088\u308a\u3001\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8 \u30de\u30a4\u30af\u306f\u975e\u5e38\u306b\u5c0f\u578b\u306b\u306a\u308a\u3001\u76f4\u5f84\u304c 3 mm \u306e\u3082\u306e\u3082\u3042\u308a\u307e\u3059\u3002\u3055\u3089\u306b\u3001PCB \u30a2\u30bb\u30f3\u30d6\u30ea\u306e\u9ad8\u6e29\u30ea\u30d5\u30ed\u30fc\u306f\u3093\u3060\u4ed8\u3051\u306b\u8010\u3048\u3089\u308c\u308b\u3088\u3046\u306b\u3001\u8868\u9762\u5b9f\u88c5\u30c7\u30d0\u30a4\u30b9 (SMD) \u30d0\u30fc\u30b8\u30e7\u30f3\u306e\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8 \u30de\u30a4\u30af\u304c\u958b\u767a\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n\n\n

\n
\"\u8868\u9762\u5b9f\u88c5\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30de\u30a4\u30af\u30ed\u30d5\u30a9\u30f3\"
SMD\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30de\u30a4\u30af\u30ed\u30db\u30f3\u3002<\/figcaption><\/figure>\n<\/div>\n\n\n

\u5229\u70b9\u3068\u7528\u9014:<\/strong><\/strong><\/p>\n\n\n\n

    \n
  • \u30b7\u30f3\u30d7\u30eb\u306a\u69cb\u9020:<\/strong> \u5916\u90e8\u30d0\u30a4\u30a2\u30b9\u96fb\u5727\u304c\u4e0d\u8981\u306a\u306e\u3067\u3001\u56de\u8def\u8a2d\u8a08\u304c\u30b7\u30f3\u30d7\u30eb\u306b\u306a\u308a\u307e\u3059\u3002<\/li>\n\n\n\n
  • \u30b3\u30f3\u30d1\u30af\u30c8\u30b5\u30a4\u30ba:<\/strong> \u30e9\u30d9\u30ea\u30a2\u30de\u30a4\u30af\u3084\u30d8\u30c3\u30c9\u30bb\u30c3\u30c8\u30de\u30a4\u30af\u306b\u6700\u9069\u3067\u3059\u3002<\/li>\n\n\n\n
  • \u5e45\u5e83\u3044\u7528\u9014:<\/strong> \u30ec\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u30b9\u30bf\u30b8\u30aa\u3001\u30e9\u30a4\u30d6\u97f3\u697d\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3001\u30b3\u30f3\u30b5\u30fc\u30c8\u30db\u30fc\u30eb\u3067\u306e\u30ec\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u3067\u5e83\u304f\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/li>\n\n\n\n
  • \u9032\u6b69:<\/strong> \u88fd\u9020\u6280\u8853\u306e\u7d99\u7d9a\u7684\u306a\u6539\u5584\u306b\u3088\u308a\u3001\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8 \u30de\u30a4\u30af\u306e\u6027\u80fd\u3068\u54c1\u8cea\u304c\u5927\u5e45\u306b\u5411\u4e0a\u3057\u307e\u3057\u305f\u3002<\/li>\n<\/ul>\n\n\n\n

    MEMS \u30de\u30a4\u30af\u30ed\u30d5\u30a9\u30f3<\/h2>\n\n\n\n

    MEMS (Micro-Electro-Mechanical Systems) \u30de\u30a4\u30af\u306f\u30b7\u30ea\u30b3\u30f3 \u30de\u30a4\u30af\u3068\u3082\u547c\u3070\u308c\u3001\u5c0f\u578b\u3067\u3001\u73fe\u4ee3\u306e\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc\u3001\u3055\u307e\u3056\u307e\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u5e83\u304f\u63a1\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n

    \n
    \"\u30a2\u30ca\u30ed\u30b0MEMS\u30de\u30a4\u30af\"
    \u30a2\u30ca\u30ed\u30b0\u30fb\u30b7\u30ea\u30b3\u30f3\u30de\u30a4\u30af\u3002<\/figcaption><\/figure>\n<\/div>\n\n
    \n
    \"\u30c7\u30b8\u30bf\u30ebMEMS\u30de\u30a4\u30af\"
    \u30c7\u30b8\u30bf\u30eb\u30fb\u30b7\u30ea\u30b3\u30f3\u30de\u30a4\u30af\u3002<\/figcaption><\/figure>\n<\/div>\n\n\n

    \u30aa\u30fc\u30c7\u30a3\u30aa\u30ad\u30e3\u30d7\u30c1\u30e3\u7528\u306b\u8a2d\u8a08\u3055\u308c\u305f\u4e00\u822c\u7684\u306a MEMS \u30de\u30a4\u30af\u306f\u3001\u8010\u4e45\u6027\u306e\u3042\u308b\u30b7\u30a7\u30eb\u306b\u53ce\u3081\u3089\u308c\u305f ASIC (\u7279\u5b9a\u7528\u9014\u5411\u3051\u96c6\u7a4d\u56de\u8def) \u30c1\u30c3\u30d7\u3068\u5727\u529b\u30bb\u30f3\u30b5\u30fc\u3067\u69cb\u6210\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u97f3\u6ce2\u306f\u958b\u53e3\u90e8\u304b\u3089\u5165\u308a\u3001\u632f\u52d5\u677f\u3068\u30d9\u30fc\u30b9\u3068\u76f8\u4e92\u4f5c\u7528\u3057\u3066\u30c1\u30e3\u30f3\u30d0\u30fc\u3092\u5f62\u6210\u3057\u307e\u3059\u3002ASIC \u30c1\u30c3\u30d7\u306f\u3001MEMS \u30de\u30a4\u30af \u30b7\u30b9\u30c6\u30e0\u306e\u4e0d\u53ef\u6b20\u306a\u90e8\u5206\u3068\u306a\u308b\u3088\u3046\u306b\u7279\u5225\u306b\u8a2d\u8a08\u304a\u3088\u3073\u30d1\u30c3\u30b1\u30fc\u30b8\u5316\u3055\u308c\u3066\u304a\u308a\u3001\u5727\u529b\u30bb\u30f3\u30b5\u30fc\u306e\u30d0\u30a4\u30a2\u30b9\u96fb\u5727\u3092\u5236\u5fa1\u3057\u3001\u9759\u96fb\u5bb9\u91cf\u306e\u5909\u5316\u3092\u6e2c\u5b9a\u3057\u3066\u51fa\u529b\u4fe1\u53f7\u3092\u751f\u6210\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

    \u52d5\u4f5c\u539f\u7406\u3068\u8a2d\u8a08:<\/strong><\/strong><\/p>\n\n\n\n

      \n
    • \u7d71\u5408\u8a2d\u8a08:<\/strong> \u5805\u7262\u306a\u7b50\u4f53\u5185\u306b ASIC \u30c1\u30c3\u30d7\u3068\u5727\u529b\u30bb\u30f3\u30b5\u30fc\u3092\u7d44\u307f\u8fbc\u3093\u3067\u3044\u307e\u3059\u3002<\/li>\n\n\n\n
    • \u52b9\u7387\u7684\u306a\u4fe1\u53f7\u51e6\u7406:<\/strong> ASIC \u30c1\u30c3\u30d7\u306f\u5727\u529b\u30bb\u30f3\u30b5\u30fc\u306e\u30d0\u30a4\u30a2\u30b9\u96fb\u5727\u3092\u7ba1\u7406\u3057\u3001\u9759\u96fb\u5bb9\u91cf\u306e\u5909\u5316\u3092\u6e2c\u5b9a\u3057\u3066\u4fe1\u53f7\u3092\u51e6\u7406\u3057\u307e\u3059\u3002ADC \u3068\u5236\u5fa1 I\/O \u3092\u7d71\u5408\u3057\u30011 \u30d3\u30c3\u30c8 PDM \u30c7\u30b8\u30bf\u30eb \u30aa\u30fc\u30c7\u30a3\u30aa\u3092\u76f4\u63a5\u51fa\u529b\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n\n\n\n

      \u7d50\u8ad6<\/h2>\n\n\n\n

      \u5c0f\u578b\u30de\u30a4\u30af\u30ed\u30d5\u30a9\u30f3\u6280\u8853\u306e\u7d99\u7d9a\u7684\u306a\u9032\u6b69\u306b\u3088\u308a\u3001\u3055\u307e\u3056\u307e\u306a\u30c7\u30d0\u30a4\u30b9\u3078\u306e\u5fdc\u7528\u304c\u5e83\u304c\u3063\u3066\u3044\u307e\u3059\u3002\u5c0f\u578b\u30de\u30a4\u30af\u30ed\u30d5\u30a9\u30f3\u6280\u8853\u306e\u6700\u5148\u7aef\u3092\u884c\u304f\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30de\u30a4\u30af\u30ed\u30d5\u30a9\u30f3\u3084MEMS\u30de\u30a4\u30af\u30ed\u30d5\u30a9\u30f3\u306f\u3001\u3055\u307e\u3056\u307e\u306a\u5206\u91ce\u3067\u6b20\u304b\u305b\u306a\u3044\u5f79\u5272\u3092\u679c\u305f\u3057\u3066\u3044\u307e\u3059\u3002\u30de\u30a4\u30af\u30ed\u30d5\u30a9\u30f3\u90e8\u54c1\u306e\u30b5\u30d7\u30e9\u30a4\u30e4\u30fc\u3068\u3057\u3066\u3001\u5f53\u793e\u306f\u591a\u69d8\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u8981\u4ef6\u3092\u6e80\u305f\u3059\u9ad8\u54c1\u8cea\u306e\u88fd\u54c1\u3092\u63d0\u4f9b\u3059\u308b\u3053\u3068\u306b\u5c3d\u529b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n

      \u5f53\u793e\u306e Web \u30b5\u30a4\u30c8\u3067\u3055\u3089\u306b\u591a\u304f\u306e\u8a18\u4e8b\u3092\u3054\u89a7\u306b\u306a\u308a\u3001\u5c0f\u578b\u30de\u30a4\u30af\u306b\u3064\u3044\u3066\u3055\u3089\u306b\u8a73\u3057\u304f\u8abf\u3079\u3001\u6700\u65b0\u306e\u6280\u8853\u30c8\u30ec\u30f3\u30c9\u3092\u628a\u63e1\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>","protected":false},"excerpt":{"rendered":"

      Miniature microphones are the most widely produced type of microphones globally, categorized primarily into electret microphones and MEMS (Micro-Electro-Mechanical Systems) microphones. These microphones are integral components found in everyday devices, ranging from mobile phones and computers to Bluetooth headsets. This article explores the operational principles and applications of these two types of miniature microphones. Electret Microphones Electret microphones, also known as electret condenser (ECM) microphones, use a dielectric material called an electret, which inherently carries a charge. This inherent charge forms a capacitor with the diaphragm, effectively providing its own bias voltage. Electret microphones require a FET (Field-Effect Transistor) to convert impedance. They do not necessitate an external bias voltage, […]<\/p>\n","protected":false},"author":1,"featured_media":1548,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[654,653,655],"class_list":["post-1180","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technical-insights","tag-compact-integration","tag-miniature-tech","tag-size-constraints"],"_links":{"self":[{"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/posts\/1180","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/comments?post=1180"}],"version-history":[{"count":0,"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/posts\/1180\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/media\/1548"}],"wp:attachment":[{"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/media?parent=1180"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/categories?post=1180"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/tags?post=1180"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}