{"id":3604,"date":"2025-10-24T10:35:44","date_gmt":"2025-10-24T02:35:44","guid":{"rendered":"https:\/\/ecmicrophones.com\/?p=3604"},"modified":"2026-01-27T15:48:34","modified_gmt":"2026-01-27T07:48:34","slug":"industrial-fault-detection-with-electret-microphones","status":"publish","type":"post","link":"https:\/\/ecmicrophones.com\/ko\/industrial-fault-detection-with-electret-microphones\/","title":{"rendered":"\uc77c\ub809\ud2b8\ub9bf \ub9c8\uc774\ud06c\ub97c \uc0ac\uc6a9\ud55c \uc0b0\uc5c5\uc6a9 \uacb0\ud568 \uac10\uc9c0"},"content":{"rendered":"<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"925\" height=\"540\" src=\"https:\/\/ecmicrophones.com\/wp-content\/uploads\/2025\/10\/ecm-b9745al30rc-industrial-main.png\" alt=\"\uc800\uc8fc\ud30c \uc624\ub958 \uac10\uc9c0\ub97c \uc704\ud574 \uc0b0\uc5c5\uc6a9 \uc7a5\ube44\uc5d0 \uc7a5\ucc29\ub41c ECM-B9745AL30RC \uc77c\ub809\ud2b8\ub9bf \ub9c8\uc774\ud06c\" class=\"wp-image-3606\" srcset=\"https:\/\/ecmicrophones.com\/wp-content\/uploads\/2025\/10\/ecm-b9745al30rc-industrial-main.png 925w, https:\/\/ecmicrophones.com\/wp-content\/uploads\/2025\/10\/ecm-b9745al30rc-industrial-main-300x175.png 300w, https:\/\/ecmicrophones.com\/wp-content\/uploads\/2025\/10\/ecm-b9745al30rc-industrial-main-768x448.png 768w, https:\/\/ecmicrophones.com\/wp-content\/uploads\/2025\/10\/ecm-b9745al30rc-industrial-main-18x12.png 18w, https:\/\/ecmicrophones.com\/wp-content\/uploads\/2025\/10\/ecm-b9745al30rc-industrial-main-600x350.png 600w\" sizes=\"auto, (max-width: 925px) 100vw, 925px\" \/><figcaption class=\"wp-element-caption\">\uc0b0\uc5c5\uc6a9 \uc800\uc8fc\ud30c \uc624\ub958 \uac10\uc9c0 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \uc704\ud55c ECM-B9745AL30RC \uc77c\ub809\ud2b8\ub9bf \ub9c8\uc774\ud06c<\/figcaption><\/figure>\n<\/div>\n\n\n<p>\uc800\uc8fc\ud30c \ucda9\uaca9 \ubc0f \uc9c4\ub3d9 \uac10\uc9c0\ub294 \uc0b0\uc5c5 \uc720\uc9c0\ubcf4\uc218 \ubc0f \uc778\ud504\ub77c \uac80\uc0ac\uc5d0\uc11c \uc810\uc810 \ub354 \uc911\uc694\ud574\uc9c0\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc9c0\ud558 \ucf00\uc774\ube14, \ud30c\uc774\ud504\ub77c\uc778, \uc911\uc7a5\ube44 \ubc0f \uae30\ud0c0 \ub300\uaddc\ubaa8 \uc7a5\ube44\ub294 \uacb0\ud568\uc744 \uc815\ud655\ud558\uac8c \ucc3e\uc544\ub0b4\uace0 \uc6b4\uc601 \uc548\uc804\uc744 \ubcf4\uc7a5\ud558\uae30 \uc704\ud574 \uc800\uc8fc\ud30c \uc2e0\ud638\ub97c \uc548\uc815\uc801\uc73c\ub85c \uac10\uc9c0\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\uae30\uc874 \ubc29\uc2dd\uc740 \uc811\ucd09 \uc13c\uc11c\ub098 \uc9c0\uc624\ud3f0\uc5d0 \uc758\uc874\ud558\ub294 \uacbd\uc6b0\uac00 \ub9ce\uc2b5\ub2c8\ub2e4. \ud558\uc9c0\ub9cc \uc77c\ub809\ud2b8\ub9bf \ub9c8\uc774\ud06c\uc640 \uac19\uc740 \uacf5\uae30 \uc911 \uc0ac\uc6b4\ub4dc \uc13c\uc11c\ub97c \uc0ac\uc6a9\ud558\uba74 \ud6a8\uacfc\uc801\uc73c\ub85c&nbsp;<strong>\ubcf4\uc870 \ub3c4\uad6c<\/strong>&nbsp;\ub97c \uc0ac\uc6a9\ud558\uc5ec \uc800\uc8fc\ud30c \uc74c\ud5a5 \uc131\ubd84\uc744 \ucea1\ucc98\ud558\uace0 \uac10\uc9c0 \uc815\ud655\ub3c4\ub97c \uac1c\uc120\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\uc0b0\uc5c5\uc6a9 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc5d0\uc11c \ub9c8\uc774\ud06c\uc758 \uc5ed\ud560<\/h2>\n\n\n\n<p>\uc77c\ub809\ud2b8\ub9bf \ub9c8\uc774\ud06c\ub294 \uc791\uace0 \uac00\ubccd\uace0 \ubbfc\uac10\ud558\uba70 \uace0\uc720 \ub178\uc774\uc988\uac00 \uc801\uc2b5\ub2c8\ub2e4. \uc6d0\ub798 \uc624\ub514\uc624 \ub179\uc74c\uc6a9\uc73c\ub85c \uc124\uacc4\ub41c \ub9c8\uc774\ud06c\uc774\uc9c0\ub9cc \uc800\uc8fc\ud30c \uacf5\uae30 \uc911 \uc9c4\ub3d9\uc744 \ud3ec\ucc29\ud560 \uc218 \uc788\uc5b4 \uc0b0\uc5c5 \ubaa8\ub2c8\ud130\ub9c1\uc758 \ubcf4\uc870 \uc13c\uc11c\ub85c \uc801\ud569\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\uc77c\ub809\ud2b8\ub9bf \ub9c8\uc774\ud06c\ub294 \uc555\uc804 \uc811\ucd09 \uc13c\uc11c \ub610\ub294 \uc9c0\uc624\ud3f0\uacfc \ud568\uaed8 \uc0ac\uc6a9\ud558\uba74 \uc800\uc8fc\ud30c \ud658\uacbd\uc5d0 \ub300\ud55c \ubcf4\ub2e4 \ud3ec\uad04\uc801\uc778 \uadf8\ub9bc\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \uc774\ub97c \ud1b5\ud574 \uc5d4\uc9c0\ub2c8\uc5b4\ub294 \uacb0\ud568 \uc704\uce58\ub97c \ubcf4\ub2e4 \ud6a8\uc728\uc801\uc73c\ub85c \ubd84\uc11d\ud558\uace0 \uc815\ubcf4\uc5d0 \uc785\uac01\ud55c \uc720\uc9c0\ubcf4\uc218 \uacb0\uc815\uc744 \ub0b4\ub9b4 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\uc81c\ud488 \uc8fc\uc694 \ub0b4\uc6a9: ECM-B9745AL30RC<\/h2>\n\n\n\n<p>ECM-B9745AL30RC \uc77c\ub809\ud2b8\ub9bf \ub9c8\uc774\ud06c\ub294 \ucef4\ud329\ud2b8\ud55c 9.7 \u00d7 4.5mm \ud3fc \ud329\ud130, -30dB \u00b12 \uac10\ub3c4, 50Hz ~ 20kHz\uc758 \uc8fc\ud30c\uc218 \uc751\ub2f5\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. 74dB\uc758 \uc2e0\ud638 \ub300 \uc7a1\uc74c\ube44\ub294 \uae68\ub057\ud55c \uc2e0\ud638 \ud3ec\ucc29\uc744 \ubcf4\uc7a5\ud558\uba70, \ubb34\uc9c0\ud5a5\uc131 \uc124\uacc4\ub85c \ub2e4\uc591\ud55c \uac01\ub3c4\uc5d0\uc11c \uac10\uc9c0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\uc8fc\uc694 \uc774\uc810\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\uc815\ud655\ud55c \ucda9\uaca9 \uac10\uc9c0\ub97c \uc704\ud55c \uc800\uc8fc\ud30c \ubc94\uc704\uc758 \ud3c9\ud0c4\ud55c \uc751\ub2f5<\/li>\n\n\n\n<li>\uc74c\uc131 \ubc0f \ud658\uacbd \uc18c\uc74c\uc744 \uc5b5\uc81c\ud558\ub294 5kHz \uc774\uc0c1\uc758 \uace0\uc8fc\ud30c \ub864\uc624\ud504<\/li>\n\n\n\n<li>\uc881\uc740 \uc0b0\uc5c5 \ud658\uacbd\uc5d0\uc11c\ub3c4 \uc720\uc5f0\ud558\uac8c \ubc30\uce58\ud560 \uc218 \uc788\ub294 \ucef4\ud329\ud2b8\ud55c \ud06c\uae30<\/li>\n\n\n\n<li>\ub2e4\uc591\ud55c \uc0b0\uc5c5 \ud658\uacbd\uc5d0 \uc801\ud569\ud55c \uacac\uace0\ud558\uace0 \uc548\uc815\uc801\uc778 \uc194\ub8e8\uc158<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\uc77c\ubc18\uc801\uc778 \uc560\ud50c\ub9ac\ucf00\uc774\uc158<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\uc9c0\ud558 \ucf00\uc774\ube14 \uc624\ub958 \uac10\uc9c0:<\/strong>\u00a0\uc11c\uc9c0\ud30c(\u201c\uc12c\ud37c\u201d) \uc2dc\uc2a4\ud15c\uc5d0\uc11c \ubc1c\uc0dd\ud558\ub294 \uc800\uc8fc\ud30c \uc74c\ud5a5 \uc2e0\ud638\ub97c \uac10\uc9c0\ud558\uc5ec \ucf00\uc774\ube14 \uacb0\ud568\uc744 \ud6a8\uc728\uc801\uc73c\ub85c \ucc3e\uc544\ub0c5\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\ud30c\uc774\ud504\ub77c\uc778 \ubc0f \uc0b0\uc5c5 \uae30\uacc4:<\/strong>\u00a0\ud38c\ud504, \ucef4\ud504\ub808\uc11c \ubc0f \uae30\ud0c0 \ub300\ud615 \uc7a5\ube44\uc5d0\uc11c \ubc1c\uc0dd\ud558\ub294 \uc9c4\ub3d9\uc774\ub098 \ucda9\uaca9\uc74c\uc744 \ubaa8\ub2c8\ud130\ub9c1\ud558\uc138\uc694.<\/li>\n\n\n\n<li><strong>\ucca0\ub3c4 \ubc0f \uc120\ub85c \uc720\uc9c0\ubcf4\uc218:<\/strong>\u00a0\uad6c\uc870\uc801 \uc9c4\ub3d9\uacfc \ube44\uc815\uc0c1\uc801\uc778 \uc800\uc8fc\ud30c \uc774\ubca4\ud2b8\ub97c \uac10\uc9c0\ud558\uc5ec \uc608\ubc29\uc801 \uc720\uc9c0\ubcf4\uc218\ub97c \uc218\ud589\ud569\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\ubc30\ud3ec \uc804\ub7b5:<\/strong>\u00a0\ud558\uc774\ube0c\ub9ac\ub4dc \ubaa8\ub2c8\ud130\ub9c1 \uc2dc\uc2a4\ud15c\uc744 \uc704\ud574 \uc9c0\uc624\ud3f0 \ub610\ub294 \ud53c\uc5d0\uc870 \uc13c\uc11c\uc640 \uacb0\ud569\ud558\uc5ec \uc804\ubc18\uc801\uc778 \uc624\ub958 \uac10\uc9c0 \uc815\ud655\ub3c4\ub97c \ub192\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">ECM-B9745AL30RC \uc0ac\uc591<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th>\ub9e4\uac1c\ubcc0\uc218<\/th><th>\uac00\uce58<\/th><\/tr><tr><td>\uce58\uc218<\/td><td>9.7\u00d74.5mm<\/td><\/tr><tr><td>\uac10\uad11\ub3c4<\/td><td>-30dB \u00b1 2<\/td><\/tr><tr><td>\uc784\ud53c\ub358\uc2a4<\/td><td>2.2k\u03a9<\/td><\/tr><tr><td>\uc2e0\ud638 \ub300 \uc7a1\uc74c\ube44(SNR)<\/td><td>74dB<\/td><\/tr><tr><td>\ucd5c\ub300 SPL<\/td><td>110 dB<\/td><\/tr><tr><td>\uc791\ub3d9 \uc804\uc555<\/td><td>2 Vdc<\/td><\/tr><tr><td>\uc8fc\ud30c\uc218 \uc751\ub2f5<\/td><td>50Hz ~ 20kHz<\/td><\/tr><tr><td>\uc9c0\ud5a5\uc131<\/td><td>\uc804\ubc29\ud5a5<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\uc8fc\ud30c\uc218 \uc751\ub2f5<\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"750\" height=\"400\" src=\"https:\/\/ecmicrophones.com\/wp-content\/uploads\/2024\/07\/typical-frequency-response_ecm-b9745al30rc.jpg\" alt=\"\ud3c9\ud0c4\ud55c \uc800\uc8fc\ud30c \uc751\ub2f5\uacfc 5kHz \uc774\uc0c1\uc758 \ub864\uc624\ud504\ub97c \ubcf4\uc5ec\uc8fc\ub294 ECM-B9745AL30RC \uc77c\ub809\ud2b8\ub9bf \ub9c8\uc774\ud06c\uc758 \uc8fc\ud30c\uc218 \uc751\ub2f5\" class=\"wp-image-1766\" srcset=\"https:\/\/ecmicrophones.com\/wp-content\/uploads\/2024\/07\/typical-frequency-response_ecm-b9745al30rc.jpg 750w, https:\/\/ecmicrophones.com\/wp-content\/uploads\/2024\/07\/typical-frequency-response_ecm-b9745al30rc-300x160.jpg 300w, https:\/\/ecmicrophones.com\/wp-content\/uploads\/2024\/07\/typical-frequency-response_ecm-b9745al30rc-18x10.jpg 18w, https:\/\/ecmicrophones.com\/wp-content\/uploads\/2024\/07\/typical-frequency-response_ecm-b9745al30rc-600x320.jpg 600w\" sizes=\"auto, (max-width: 750px) 100vw, 750px\" \/><figcaption class=\"wp-element-caption\">\n        \ud3c9\ud0c4\ud55c \uc800\uc8fc\ud30c \uc751\ub2f5\uc744 \uc81c\uacf5\ud558\ub294 ECM-B9745AL30RC\ub294 \uc0b0\uc5c5\uc6a9 \uc800\uc8fc\ud30c \uc624\ub958 \uac10\uc9c0\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4.\n    <\/figcaption><\/figure>\n<\/div>\n\n\n<p>\uc8fc\ud30c\uc218 \uc751\ub2f5 \uc608\uc2dc: \uc800\uc8fc\ud30c \ubc94\uc704\uc5d0\uc11c\ub294 \ud3c9\ud0c4\ud558\uace0, \uace0\uc8fc\ud30c \uc7a1\uc74c\uacfc \uac04\uc12d\uc744 \uc5b5\uc81c\ud558\uae30 \uc704\ud574 5kHz \uc774\uc0c1\uc5d0\uc11c\ub294 \ub864\uc624\ud504\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\ucd08\uae30 \ubb38\uc758\ub294 \ud2b9\uc815 \uc9c0\uc5ed\uc5d0\uc11c \uc774\ub8e8\uc5b4\uc9c8 \uc218 \uc788\uc9c0\ub9cc \uc800\uc8fc\ud30c \uc624\ub958 \uac10\uc9c0\uc5d0 \ub300\ud55c \uc218\uc694\ub294 \uc804 \uc138\uacc4\uc801\uc73c\ub85c \uc874\uc7ac\ud569\ub2c8\ub2e4. \uc804 \uc138\uacc4\uc758 \uc804\ub825\ub9dd, \uc0b0\uc5c5 \ud50c\ub79c\ud2b8, \ucca0\ub3c4 \uc2dc\uc2a4\ud15c, \ud30c\uc774\ud504\ub77c\uc778 \ub124\ud2b8\uc6cc\ud06c\ub294 \ubcf4\uc870 \uc77c\ub809\ud2b8\ub9bf \ub9c8\uc774\ud06c\ub97c \ud1b5\ud574 \uac10\uc9c0 \uae30\ub2a5\uc744 \ud5a5\uc0c1\ud558\uace0 \uc720\uc9c0\ubcf4\uc218 \ud6a8\uc728\uc131\uc744 \uac1c\uc120\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\uc77c\ub809\ud2b8\ub9bf \ub9c8\uc774\ud06c\ub294 \uc791\uc740 \ud06c\uae30\uc640 \uc720\uc5f0\uc131, \ubcf5\uc7a1\ud55c \ud658\uacbd\uc5d0\uc11c\ub3c4 \uc74c\ud5a5 \uc2e0\ud638\ub97c \ud3ec\ucc29\ud558\ub294 \ub2a5\ub825\uc73c\ub85c \uae30\uc874\uc758 \uc811\ucd09\uc2dd \uc13c\uc11c\ub97c \ubcf4\uc644\ud560 \uc218 \uc788\ub2e4\ub294 \uc810\uc5d0\uc11c \ub192\uc740 \ud3c9\uac00\ub97c \ubc1b\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p>ECM-B9745AL30RC\uc640 \uac19\uc740 \uc77c\ub809\ud2b8\ub9bf \ub9c8\uc774\ud06c\ub294 \uc624\ub514\uc624 \ubd84\uc57c\uc5d0 \uad6d\ud55c\ub418\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uc800\uc8fc\ud30c \uac10\ub3c4, \ub178\uc774\uc988 \uc5b5\uc81c, \ucef4\ud329\ud2b8\ud55c \ub514\uc790\uc778\uc73c\ub85c \uc0b0\uc5c5\uc6a9 \uace0\uc7a5 \uac10\uc9c0 \ubc0f \ubaa8\ub2c8\ud130\ub9c1\uc5d0 \uc774\uc0c1\uc801\uc778 \ubcf4\uc870 \uc13c\uc11c\uc785\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ub9c8\uc774\ud06c\ub97c \ud558\uc774\ube0c\ub9ac\ub4dc \uac10\uc9c0 \uc124\uc815\uc5d0 \ud1b5\ud569\ud558\uba74 \uc5d4\uc9c0\ub2c8\uc5b4\ub294 \uc7a5\ube44 \ubc0f \uc778\ud504\ub77c \uc0c1\ud0dc\uc5d0 \ub300\ud55c \ubcf4\ub2e4 \uc815\ud655\ud558\uace0 \uc2e0\ub8b0\ud560 \uc218 \uc788\ub294 \uc778\uc0ac\uc774\ud2b8\ub97c \uc5bb\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\uc0b0\uc5c5 \ud504\ub85c\uc81d\ud2b8\ub97c \uc704\ud55c \uc774 \ub9c8\uc774\ud06c\ub97c \uc0b4\ud3b4\ubcf4\ub824\uba74 \uc81c\ud488 \ud398\uc774\uc9c0\ub97c \ubc29\ubb38\ud558\uc138\uc694:&nbsp;<a href=\"https:\/\/ecmicrophones.com\/ko\/9-7mm-omnidirectional-microphone-element-for-long-distance-audio-pickup\/\" target=\"_blank\" rel=\"noreferrer noopener\">ECM-B9745AL30RC 9.7mm \ubb34\uc9c0\ud5a5\uc131 \ub9c8\uc774\ud06c \uc5d8\ub9ac\uba3c\ud2b8<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>Low-frequency impact and vibration detection is increasingly critical in industrial maintenance and infrastructure inspection. Underground cables, pipelines, heavy machinery, and other large-scale equipment require reliable sensing of low-frequency signals to accurately locate faults and ensure operational safety. Traditional methods often rely on contact sensors or geophones. However, airborne sound sensors, such as electret microphones, can [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3606,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[537,538,520,521],"class_list":["post-3604","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technical-insights","tag-far-field","tag-high-sensitivity","tag-high-snr","tag-o9-7mm"],"_links":{"self":[{"href":"https:\/\/ecmicrophones.com\/ko\/wp-json\/wp\/v2\/posts\/3604","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ecmicrophones.com\/ko\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ecmicrophones.com\/ko\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ecmicrophones.com\/ko\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ecmicrophones.com\/ko\/wp-json\/wp\/v2\/comments?post=3604"}],"version-history":[{"count":0,"href":"https:\/\/ecmicrophones.com\/ko\/wp-json\/wp\/v2\/posts\/3604\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ecmicrophones.com\/ko\/wp-json\/wp\/v2\/media\/3606"}],"wp:attachment":[{"href":"https:\/\/ecmicrophones.com\/ko\/wp-json\/wp\/v2\/media?parent=3604"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ecmicrophones.com\/ko\/wp-json\/wp\/v2\/categories?post=3604"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ecmicrophones.com\/ko\/wp-json\/wp\/v2\/tags?post=3604"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}