{"id":52940,"date":"2023-04-21T12:21:57","date_gmt":"2023-04-21T17:21:57","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/can-ultrasonic-sound-damage-hearing\/"},"modified":"2025-01-21T07:06:36","modified_gmt":"2025-01-21T12:06:36","slug":"can-ultrasonic-sound-damage-hearing","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/vi\/can-ultrasonic-sound-damage-hearing\/","title":{"rendered":"Si\u00eau \u00e2m c\u00f3 th\u1ec3 g\u00e2y h\u1ea1i th\u00ednh gi\u00e1c?"},"content":{"rendered":"<p>\u00c2m thanh si\u00eau \u00e2m, v\u1edbi t\u1ea7n s\u1ed1 v\u01b0\u1ee3t qu\u00e1 ng\u01b0\u1ee1ng nghe c\u1ee7a con ng\u01b0\u1eddi (tr\u00ean 20kHz), \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u l\u0129nh v\u1ef1c, t\u1eeb y t\u1ebf, c\u00f4ng nghi\u1ec7p \u0111\u1ebfn \u0111\u1eddi s\u1ed1ng h\u00e0ng ng\u00e0y. \u0110i\u1ec1u n\u00e0y d\u1ea5y l\u00ean c\u00e2u h\u1ecfi v\u1ec1 t\u00e1c \u0111\u1ed9ng c\u1ee7a n\u00f3 \u0111\u1ebfn s\u1ee9c kh\u1ecfe, \u0111\u1eb7c bi\u1ec7t l\u00e0 kh\u1ea3 n\u0103ng g\u00e2y t\u1ed5n th\u01b0\u01a1ng th\u00ednh gi\u00e1c.  Li\u1ec7u \u00e2m thanh si\u00eau \u00e2m c\u00f3 th\u1ef1c s\u1ef1 g\u00e2y h\u1ea1i cho tai hay kh\u00f4ng? B\u00e0i vi\u1ebft n\u00e0y s\u1ebd \u0111i s\u00e2u ph\u00e2n t\u00edch v\u1ea5n \u0111\u1ec1 n\u00e0y d\u1ef1a tr\u00ean c\u00e1c nghi\u00ean c\u1ee9u khoa h\u1ecdc.<\/p>\n<h3>C\u01a1 ch\u1ebf t\u00e1c \u0111\u1ed9ng c\u1ee7a \u00e2m thanh si\u00eau \u00e2m l\u00ean th\u00ednh gi\u00e1c<\/h3>\n<p>Tai ng\u01b0\u1eddi ch\u1ec9 c\u00f3 th\u1ec3 nghe \u0111\u01b0\u1ee3c \u00e2m thanh trong d\u1ea3i t\u1ea7n s\u1ed1 nh\u1ea5t \u0111\u1ecbnh. \u00c2m thanh si\u00eau \u00e2m, v\u1edbi t\u1ea7n s\u1ed1 cao h\u01a1n, v\u1ec1 m\u1eb7t l\u00fd thuy\u1ebft kh\u00f4ng th\u1ec3 \u0111\u01b0\u1ee3c tai ch\u00fang ta c\u1ea3m nh\u1eadn. Tuy nhi\u00ean, \u1edf c\u01b0\u1eddng \u0111\u1ed9 cao, s\u00f3ng si\u00eau \u00e2m c\u00f3 th\u1ec3 t\u01b0\u01a1ng t\u00e1c v\u1edbi c\u00e1c m\u00f4 trong c\u01a1 th\u1ec3, bao g\u1ed3m c\u1ea3 tai, g\u00e2y ra c\u00e1c hi\u1ec7u \u1ee9ng kh\u00e1c nhau.  M\u1ed9t trong s\u1ed1 \u0111\u00f3 l\u00e0 hi\u1ec7u \u1ee9ng nhi\u1ec7t, khi n\u0103ng l\u01b0\u1ee3ng si\u00eau \u00e2m b\u1ecb h\u1ea5p th\u1ee5 b\u1edfi m\u00f4 v\u00e0 chuy\u1ec3n h\u00f3a th\u00e0nh nhi\u1ec7t.<\/p>\n<h3>C\u00e1c nghi\u00ean c\u1ee9u v\u1ec1 t\u00e1c \u0111\u1ed9ng c\u1ee7a \u00e2m thanh si\u00eau \u00e2m l\u00ean th\u00ednh gi\u00e1c<\/h3>\n<p>Nhi\u1ec1u nghi\u00ean c\u1ee9u \u0111\u00e3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 t\u00e1c \u0111\u1ed9ng c\u1ee7a \u00e2m thanh si\u00eau \u00e2m l\u00ean th\u00ednh gi\u00e1c. K\u1ebft qu\u1ea3 cho th\u1ea5y, \u1edf c\u01b0\u1eddng \u0111\u1ed9 th\u1ea5p, \u00e2m thanh si\u00eau \u00e2m th\u01b0\u1eddng kh\u00f4ng g\u00e2y ra t\u1ed5n th\u01b0\u01a1ng \u0111\u00e1ng k\u1ec3. Tuy nhi\u00ean, ti\u1ebfp x\u00fac k\u00e9o d\u00e0i v\u1edbi \u00e2m thanh si\u00eau \u00e2m c\u01b0\u1eddng \u0111\u1ed9 cao c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn c\u00e1c v\u1ea5n \u0111\u1ec1 nh\u01b0 \u00f9 tai, ch\u00f3ng m\u1eb7t, th\u1eadm ch\u00ed l\u00e0 m\u1ea5t th\u00ednh l\u1ef1c t\u1ea1m th\u1eddi ho\u1eb7c v\u0129nh vi\u1ec5n.<\/p>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>C\u01b0\u1eddng \u0111\u1ed9 \u00e2m thanh si\u00eau \u00e2m<\/th>\n<th>Th\u1eddi gian ti\u1ebfp x\u00fac<\/th>\n<th>T\u00e1c \u0111\u1ed9ng ti\u1ec1m \u1ea9n<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Th\u1ea5p<\/td>\n<td>Ng\u1eafn<\/td>\n<td>Kh\u00f4ng \u0111\u00e1ng k\u1ec3<\/td>\n<\/tr>\n<tr>\n<td>Th\u1ea5p<\/td>\n<td>K\u00e9o d\u00e0i<\/td>\n<td>C\u00f3 th\u1ec3 g\u00e2y kh\u00f3 ch\u1ecbu, m\u1ec7t m\u1ecfi<\/td>\n<\/tr>\n<tr>\n<td>Cao<\/td>\n<td>Ng\u1eafn<\/td>\n<td>\u00d9 tai, ch\u00f3ng m\u1eb7t t\u1ea1m th\u1eddi<\/td>\n<\/tr>\n<tr>\n<td>Cao<\/td>\n<td>K\u00e9o d\u00e0i<\/td>\n<td>M\u1ea5t th\u00ednh l\u1ef1c, t\u1ed5n th\u01b0\u01a1ng tai v\u0129nh vi\u1ec5n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u1ee8ng d\u1ee5ng si\u00eau \u00e2m v\u00e0 nguy c\u01a1 ti\u1ec1m \u1ea9n<\/h3>\n<p>Si\u00eau \u00e2m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c thi\u1ebft b\u1ecb y t\u1ebf nh\u01b0 m\u00e1y si\u00eau \u00e2m ch\u1ea9n \u0111o\u00e1n, m\u00e1y \u0111i\u1ec1u tr\u1ecb v\u1eadt l\u00fd tr\u1ecb li\u1ec7u. Trong c\u00f4ng nghi\u1ec7p, si\u00eau \u00e2m \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng trong c\u00e1c quy tr\u00ecnh l\u00e0m s\u1ea1ch, h\u00e0n, ki\u1ec3m tra v\u1eadt li\u1ec7u.  M\u1eb7c d\u00f9 h\u1ea7u h\u1ebft c\u00e1c \u1ee9ng d\u1ee5ng n\u00e0y s\u1eed d\u1ee5ng \u00e2m thanh si\u00eau \u00e2m \u1edf c\u01b0\u1eddng \u0111\u1ed9 an to\u00e0n, nh\u01b0ng v\u1eabn t\u1ed3n t\u1ea1i nguy c\u01a1 ti\u1ec1m \u1ea9n n\u1ebfu kh\u00f4ng tu\u00e2n th\u1ee7 c\u00e1c quy \u0111\u1ecbnh v\u1ec1 an to\u00e0n.  V\u00ed d\u1ee5, vi\u1ec7c s\u1eed d\u1ee5ng m\u00e1y l\u00e0m s\u1ea1ch si\u00eau \u00e2m c\u00f4ng su\u1ea5t l\u1edbn trong th\u1eddi gian d\u00e0i m\u00e0 kh\u00f4ng c\u00f3 bi\u1ec7n ph\u00e1p b\u1ea3o v\u1ec7 th\u00edch h\u1ee3p c\u00f3 th\u1ec3 g\u00e2y h\u1ea1i cho th\u00ednh gi\u00e1c.<\/p>\n<h3>Bi\u1ec7n ph\u00e1p ph\u00f2ng ng\u1eeba khi ti\u1ebfp x\u00fac v\u1edbi \u00e2m thanh si\u00eau \u00e2m<\/h3>\n<p>\u0110\u1ec3 gi\u1ea3m thi\u1ec3u nguy c\u01a1 t\u1ed5n th\u01b0\u01a1ng th\u00ednh gi\u00e1c khi ti\u1ebfp x\u00fac v\u1edbi \u00e2m thanh si\u00eau \u00e2m, c\u1ea7n tu\u00e2n th\u1ee7 c\u00e1c bi\u1ec7n ph\u00e1p ph\u00f2ng ng\u1eeba sau:<\/p>\n<ul>\n<li>H\u1ea1n ch\u1ebf th\u1eddi gian ti\u1ebfp x\u00fac v\u1edbi ngu\u1ed3n ph\u00e1t si\u00eau \u00e2m, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u1edf c\u01b0\u1eddng \u0111\u1ed9 cao.<\/li>\n<li>S\u1eed d\u1ee5ng thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 tai khi l\u00e0m vi\u1ec7c trong m\u00f4i tr\u01b0\u1eddng c\u00f3 \u00e2m thanh si\u00eau \u00e2m c\u01b0\u1eddng \u0111\u1ed9 cao.<\/li>\n<li>\u0110\u1ea3m b\u1ea3o c\u00e1c thi\u1ebft b\u1ecb si\u00eau \u00e2m \u0111\u01b0\u1ee3c v\u1eadn h\u00e0nh \u0111\u00fang c\u00e1ch v\u00e0 tu\u00e2n th\u1ee7 c\u00e1c quy \u0111\u1ecbnh v\u1ec1 an to\u00e0n.<\/li>\n<\/ul>\n<p>T\u00f3m l\u1ea1i, m\u1eb7c d\u00f9 \u00e2m thanh si\u00eau \u00e2m kh\u00f4ng tr\u1ef1c ti\u1ebfp n\u1eb1m trong d\u1ea3i t\u1ea7n s\u1ed1 nghe \u0111\u01b0\u1ee3c c\u1ee7a con ng\u01b0\u1eddi, nh\u01b0ng \u1edf c\u01b0\u1eddng \u0111\u1ed9 cao v\u00e0 th\u1eddi gian ti\u1ebfp x\u00fac k\u00e9o d\u00e0i, n\u00f3 c\u00f3 th\u1ec3 g\u00e2y ra nh\u1eefng t\u00e1c \u0111\u1ed9ng ti\u00eau c\u1ef1c \u0111\u1ebfn th\u00ednh gi\u00e1c.  Vi\u1ec7c hi\u1ec3u r\u00f5 v\u1ec1 t\u00e1c \u0111\u1ed9ng n\u00e0y v\u00e0 tu\u00e2n th\u1ee7 c\u00e1c bi\u1ec7n ph\u00e1p ph\u00f2ng ng\u1eeba l\u00e0 c\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n cho s\u1ee9c kh\u1ecfe.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u00c2m thanh si\u00eau \u00e2m, v\u1edbi t\u1ea7n s\u1ed1 v\u01b0\u1ee3t qu\u00e1 ng\u01b0\u1ee1ng nghe c\u1ee7a con ng\u01b0\u1eddi (tr\u00ean 20kHz), \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u l\u0129nh v\u1ef1c, t\u1eeb y t\u1ebf, c\u00f4ng nghi\u1ec7p \u0111\u1ebfn \u0111\u1eddi s\u1ed1ng h\u00e0ng ng\u00e0y. \u0110i\u1ec1u n\u00e0y d\u1ea5y l\u00ean c\u00e2u h\u1ecfi v\u1ec1 t\u00e1c \u0111\u1ed9ng c\u1ee7a n\u00f3 \u0111\u1ebfn s\u1ee9c kh\u1ecfe, \u0111\u1eb7c bi\u1ec7t l\u00e0 kh\u1ea3 n\u0103ng g\u00e2y<\/p>\n","protected":false},"author":1,"featured_media":26472,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6406],"tags":[],"class_list":["post-52940","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","prodpage-classic"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts\/52940","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/comments?post=52940"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts\/52940\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media\/26472"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media?parent=52940"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/categories?post=52940"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/tags?post=52940"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}