{"id":38783,"date":"2023-04-21T13:35:44","date_gmt":"2023-04-21T18:35:44","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/diy-ultrasonic-directional-speaker\/"},"modified":"2025-01-21T03:29:49","modified_gmt":"2025-01-21T08:29:49","slug":"diy-ultrasonic-directional-speaker","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/ko\/diy-ultrasonic-directional-speaker\/","title":{"rendered":"\ucd08\uc74c\ud30c \uc9c0\ud5a5\uc131 \uc2a4\ud53c\ucee4, \uc9d1\uc5d0\uc11c \ub9cc\ub4e4\uc5b4 \ubcf4\uc790!"},"content":{"rendered":"

\ucd08\uc74c\ud30c\ub294 \uc6b0\ub9ac \uc8fc\ubcc0\uc5d0\uc11c \ub2e4\uc591\ud55c \uc6a9\ub3c4\ub85c \ud65c\uc6a9\ub418\uace0 \uc788\uc9c0\ub9cc, \uc77c\ubc18\uc801\uc778 \uc2a4\ud53c\ucee4\uc640 \ub2ec\ub9ac \ubc29\ud5a5\uc131\uc744 \uac00\uc9c4 \ucd08\uc74c\ud30c \uc2a4\ud53c\ucee4\ub97c DIY\ub85c \uc81c\uc791\ud558\ub294 \uac83\uc740 \ud765\ubbf8\ub85c\uc6b4 \ub3c4\uc804\uc785\ub2c8\ub2e4. \uc774 \uae00\uc5d0\uc11c\ub294 \uc9d1\uc5d0\uc11c \uac04\ub2e8\ud55c \ub3c4\uad6c\uc640 \uc7ac\ub8cc\ub97c \uc0ac\uc6a9\ud558\uc5ec \ucd08\uc74c\ud30c \uc9c0\ud5a5\uc131 \uc2a4\ud53c\ucee4\ub97c \ub9cc\ub4dc\ub294 \ubc29\ubc95\uc744 \uc790\uc138\ud788 \uc54c\uc544\ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \ucd08\uc74c\ud30c\uc758 \ud2b9\uc131\uacfc \uc6d0\ub9ac\ub97c \uc774\ud574\ud558\uace0, \uc2e4\uc81c \uc81c\uc791 \uacfc\uc815\uc744 \ub2e8\uacc4\ubcc4\ub85c \ub530\ub77c \ud558\uba74 \ub204\uad6c\ub098 \uc790\uc2e0\ub9cc\uc758 \ucd08\uc74c\ud30c \uc9c0\ud5a5\uc131 \uc2a4\ud53c\ucee4\ub97c \ub9cc\ub4e4 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

\ucd08\uc74c\ud30c \uc9c0\ud5a5\uc131 \uc2a4\ud53c\ucee4\uc758 \uc6d0\ub9ac<\/h3>\n

\ucd08\uc74c\ud30c \uc9c0\ud5a5\uc131 \uc2a4\ud53c\ucee4\ub294 \uc77c\ubc18 \uc2a4\ud53c\ucee4\uc640 \ub2ec\ub9ac \ud2b9\uc815 \ubc29\ud5a5\uc73c\ub85c \uc18c\ub9ac\ub97c \uc9d1\uc911\uc2dc\ud0a4\ub294 \uae30\ub2a5\uc744 \ud569\ub2c8\ub2e4. \uc774\ub294 \ucd08\uc74c\ud30c\uc758 \ud30c\uc7a5\uc774 \uc9e7\uc544 \ud68c\uc808\uc774 \uc801\uac8c \uc77c\uc5b4\ub098\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4. \ucd08\uc74c\ud30c \ud2b8\ub79c\uc2a4\ub4c0\uc11c\ub97c \ud1b5\ud574 \uc0dd\uc131\ub41c \ucd08\uc74c\ud30c\ub294 \uacf5\uae30 \uc911\uc5d0\uc11c \ube44\uc120\ud615 \ud6a8\uacfc\ub97c \ubc1c\uc0dd\uc2dc\ucf1c \uac00\uccad \uc8fc\ud30c\uc218 \ub300\uc5ed\uc758 \uc18c\ub9ac\ub97c \uc0dd\uc131\ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc6d0\ub9ac\ub97c \uc774\uc6a9\ud558\uc5ec \ud2b9\uc815 \uc601\uc5ed\uc5d0\ub9cc \uc18c\ub9ac\ub97c \uc804\ub2ec\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

\ud544\uc694\ud55c \uc7ac\ub8cc \ubc0f \ub3c4\uad6c<\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\uc7ac\ub8cc<\/th>\n\uc124\uba85<\/th>\n<\/tr>\n<\/thead>\n
\ucd08\uc74c\ud30c \ud2b8\ub79c\uc2a4\ub4c0\uc11c (40kHz)<\/td>\n\ucd08\uc74c\ud30c\ub97c \ubc1c\uc0dd\uc2dc\ud0a4\ub294 \ud575\uc2ec \ubd80\ud488<\/td>\n<\/tr>\n
NPN \ud2b8\ub79c\uc9c0\uc2a4\ud130 (\uc608: 2N2222)<\/td>\n\ud2b8\ub79c\uc2a4\ub4c0\uc11c\ub97c \uad6c\ub3d9\ud558\uae30 \uc704\ud55c \uc99d\ud3ed \uc7a5\uce58<\/td>\n<\/tr>\n
\uc800\ud56d (10k\u03a9, 1k\u03a9)<\/td>\n\ud68c\ub85c \uc548\uc815\ud654 \ubc0f \uc804\ub958 \uc81c\ud55c<\/td>\n<\/tr>\n
\ucf58\ub374\uc11c (100nF)<\/td>\n\ub178\uc774\uc988 \uc81c\uac70<\/td>\n<\/tr>\n
\uc804\uc6d0 \uacf5\uae09 \uc7a5\uce58 (12V DC)<\/td>\n\ud2b8\ub79c\uc2a4\ub4c0\uc11c \uad6c\ub3d9 \uc804\uc6d0<\/td>\n<\/tr>\n
\ube0c\ub808\ub4dc\ubcf4\ub4dc \ub610\ub294 PCB<\/td>\n\ud68c\ub85c \uad6c\uc131<\/td>\n<\/tr>\n
\uc810\ud37c \uc640\uc774\uc5b4<\/td>\n\ud68c\ub85c \uc5f0\uacb0<\/td>\n<\/tr>\n
\ucf00\uc774\uc2a4 (\uc120\ud0dd)<\/td>\n\uc644\uc131\ub41c \uc2a4\ud53c\ucee4 \ubcf4\ud638 \ubc0f \uc678\uad00 \uac1c\uc120<\/td>\n<\/tr>\n
\ubc29\uc5f4\ud310 (\uc120\ud0dd)<\/td>\n\ud2b8\ub79c\uc9c0\uc2a4\ud130 \uacfc\uc5f4 \ubc29\uc9c0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\ud68c\ub85c \uad6c\uc131 \ubc0f \uc5f0\uacb0<\/h3>\n

\ube0c\ub808\ub4dc\ubcf4\ub4dc \ub610\ub294 PCB\ub97c \uc0ac\uc6a9\ud558\uc5ec \uc704\uc758 \ubd80\ud488\ub4e4\uc744 \uc5f0\uacb0\ud569\ub2c8\ub2e4. \ud2b8\ub79c\uc9c0\uc2a4\ud130\uc758 \ubca0\uc774\uc2a4\uc5d0\ub294 10k\u03a9 \uc800\ud56d\uc744 \uc5f0\uacb0\ud558\uace0, \uceec\ub809\ud130\uc5d0\ub294 \ucd08\uc74c\ud30c \ud2b8\ub79c\uc2a4\ub4c0\uc11c\ub97c \uc5f0\uacb0\ud569\ub2c8\ub2e4. \uc5d0\ubbf8\ud130\ub294 \uc811\uc9c0\uc5d0 \uc5f0\uacb0\ud558\uace0, \uc804\uc6d0 \uacf5\uae09 \uc7a5\uce58\uc758 \uc591\uadf9(+)\uc740 \ud2b8\ub79c\uc2a4\ub4c0\uc11c\uc5d0, \uc74c\uadf9(-)\uc740 \uc811\uc9c0\uc5d0 \uc5f0\uacb0\ud569\ub2c8\ub2e4. 1k\u03a9 \uc800\ud56d\uacfc 100nF \ucf58\ub374\uc11c\ub294 \ub178\uc774\uc988\ub97c \uc81c\uac70\ud558\uae30 \uc704\ud574 \uc804\uc6d0 \ub77c\uc778\uc5d0 \ubcd1\ub82c\ub85c \uc5f0\uacb0\ud569\ub2c8\ub2e4. \ud68c\ub85c \uad6c\uc131 \uc2dc \ub370\uc774\ud130\uc2dc\ud2b8\ub97c \ucc38\uace0\ud558\uc5ec \uc815\ud655\ud55c \uc5f0\uacb0\uc744 \ud655\uc778\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n

\ucd08\uc74c\ud30c \ud2b8\ub79c\uc2a4\ub4c0\uc11c \ubc30\uce58 \ubc0f \ud14c\uc2a4\ud2b8<\/h3>\n

\ucd08\uc74c\ud30c \ud2b8\ub79c\uc2a4\ub4c0\uc11c\ub97c \uc6d0\ud558\ub294 \ubc29\ud5a5\uc73c\ub85c \ud5a5\ud558\uac8c \ubc30\uce58\ud569\ub2c8\ub2e4. \uc804\uc6d0\uc744 \uc5f0\uacb0\ud558\uace0, \ud2b8\ub79c\uc2a4\ub4c0\uc11c\uc5d0\uc11c \ubc1c\uc0dd\ud558\ub294 \uc18c\ub9ac\ub97c \ud655\uc778\ud569\ub2c8\ub2e4. \uc18c\ub9ac\uac00 \ub108\ubb34 \uc791\uac70\ub098 \ub4e4\ub9ac\uc9c0 \uc54a\uc744 \uacbd\uc6b0, \ud68c\ub85c \uc5f0\uacb0\uc744 \ub2e4\uc2dc \ud655\uc778\ud558\uac70\ub098 \ud2b8\ub79c\uc2a4\ub4c0\uc11c\uc758 \ubd88\ub7c9 \uc5ec\ubd80\ub97c \ud655\uc778\ud569\ub2c8\ub2e4. \ub9cc\uc57d \ud2b9\uc815 \ube0c\ub79c\ub4dc\uc758 \ucd08\uc74c\ud30c \ud2b8\ub79c\uc2a4\ub4c0\uc11c\uc5d0 \ub300\ud55c \uc815\ubcf4\uac00 \ud544\uc694\ud558\ub2e4\uba74 Beijing Ultrasonic \uc81c\ud488\uc744 \ucc38\uace0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ud558\uc9c0\ub9cc \ub300\ubd80\ubd84\uc758 40kHz \ud2b8\ub79c\uc2a4\ub4c0\uc11c\ub294 \ud638\ud658 \uac00\ub2a5\ud569\ub2c8\ub2e4.<\/p>\n

\ucf00\uc774\uc2a4 \uc81c\uc791 \ubc0f \ub9c8\ubb34\ub9ac (\uc120\ud0dd)<\/h3>\n

\uc644\uc131\ub41c \ud68c\ub85c\ub97c \ucf00\uc774\uc2a4\uc5d0 \ub123\uc5b4 \uae54\ub054\ud558\uac8c \ub9c8\ubb34\ub9ac\ud558\uace0, \ud544\uc694\uc5d0 \ub530\ub77c \ubc29\uc5f4\ud310\uc744 \ubd80\ucc29\ud558\uc5ec \ud2b8\ub79c\uc9c0\uc2a4\ud130\uc758 \uacfc\uc5f4\uc744 \ubc29\uc9c0\ud569\ub2c8\ub2e4. \ucf00\uc774\uc2a4\ub294 \uc2a4\ud53c\ucee4\uc758 \uc678\uad00\uc744 \uac1c\uc120\ud558\uace0 \ub0b4\ubd80 \ubd80\ud488\uc744 \ubcf4\ud638\ud558\ub294 \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4.<\/p>\n

\ucd08\uc74c\ud30c \uc9c0\ud5a5\uc131 \uc2a4\ud53c\ucee4\ub294 \ub2e4\uc591\ud55c \ubd84\uc57c\uc5d0\uc11c \ud65c\uc6a9\ub420 \uc218 \uc788\ub294 \ud765\ubbf8\ub85c\uc6b4 \uae30\uc220\uc785\ub2c8\ub2e4. \uc9c1\uc811 \uc81c\uc791\ud574 \ubd04\uc73c\ub85c\uc368 \ucd08\uc74c\ud30c\uc758 \uc6d0\ub9ac\ub97c \uc774\ud574\ud558\uace0, \uc804\uc790 \uacf5\ud559\uc5d0 \ub300\ud55c \uae30\ucd08 \uc9c0\uc2dd\uc744 \uc2b5\ub4dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \uae00\uc5d0\uc11c \uc81c\uc2dc\ub41c \ubc29\ubc95\uc744 \ub530\ub77c\ud558\uba74 \ub204\uad6c\ub098 \uc790\uc2e0\ub9cc\uc758 \ucd08\uc74c\ud30c \uc9c0\ud5a5\uc131 \uc2a4\ud53c\ucee4\ub97c \ub9cc\ub4e4\uace0, \uadf8 \uac00\ub2a5\uc131\uc744 \ud0d0\uad6c\ud560 \uc218 \uc788\uc744 \uac83\uc785\ub2c8\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"

\ucd08\uc74c\ud30c\ub294 \uc6b0\ub9ac \uc8fc\ubcc0\uc5d0\uc11c \ub2e4\uc591\ud55c \uc6a9\ub3c4\ub85c \ud65c\uc6a9\ub418\uace0 \uc788\uc9c0\ub9cc, \uc77c\ubc18\uc801\uc778 \uc2a4\ud53c\ucee4\uc640 \ub2ec\ub9ac \ubc29\ud5a5\uc131\uc744 \uac00\uc9c4 \ucd08\uc74c\ud30c \uc2a4\ud53c\ucee4\ub97c DIY\ub85c \uc81c\uc791\ud558\ub294 \uac83\uc740 \ud765\ubbf8\ub85c\uc6b4 \ub3c4\uc804\uc785\ub2c8\ub2e4. \uc774 \uae00\uc5d0\uc11c\ub294 \uc9d1\uc5d0\uc11c \uac04\ub2e8\ud55c \ub3c4\uad6c\uc640 \uc7ac\ub8cc\ub97c \uc0ac\uc6a9\ud558\uc5ec \ucd08\uc74c\ud30c \uc9c0\ud5a5\uc131 \uc2a4\ud53c\ucee4\ub97c \ub9cc\ub4dc\ub294 \ubc29\ubc95\uc744 \uc790\uc138\ud788 \uc54c\uc544\ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \ucd08\uc74c\ud30c\uc758 \ud2b9\uc131\uacfc \uc6d0\ub9ac\ub97c \uc774\ud574\ud558\uace0, \uc2e4\uc81c \uc81c\uc791 \uacfc\uc815\uc744 \ub2e8\uacc4\ubcc4\ub85c \ub530\ub77c \ud558\uba74 \ub204\uad6c\ub098 \uc790\uc2e0\ub9cc\uc758 \ucd08\uc74c\ud30c \uc9c0\ud5a5\uc131 \uc2a4\ud53c\ucee4\ub97c \ub9cc\ub4e4 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ucd08\uc74c\ud30c \uc9c0\ud5a5\uc131 \uc2a4\ud53c\ucee4\uc758 \uc6d0\ub9ac<\/p>\n","protected":false},"author":1,"featured_media":26478,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6409],"tags":[],"class_list":["post-38783","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","prodpage-classic"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.bjultrasonic.com\/ko\/wp-json\/wp\/v2\/posts\/38783","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bjultrasonic.com\/ko\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bjultrasonic.com\/ko\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/ko\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/ko\/wp-json\/wp\/v2\/comments?post=38783"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/ko\/wp-json\/wp\/v2\/posts\/38783\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/ko\/wp-json\/wp\/v2\/media\/26478"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/ko\/wp-json\/wp\/v2\/media?parent=38783"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/ko\/wp-json\/wp\/v2\/categories?post=38783"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/ko\/wp-json\/wp\/v2\/tags?post=38783"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}