{"id":43844,"date":"2023-04-25T16:48:51","date_gmt":"2023-04-25T21:48:51","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/what-are-ultrasonic-waves-used-for\/"},"modified":"2025-01-21T07:27:09","modified_gmt":"2025-01-21T12:27:09","slug":"what-are-ultrasonic-waves-used-for","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/vi\/what-are-ultrasonic-waves-used-for\/","title":{"rendered":"\u1ee8ng d\u1ee5ng \u0111a d\u1ea1ng c\u1ee7a s\u00f3ng si\u00eau \u00e2m trong \u0111\u1eddi s\u1ed1ng"},"content":{"rendered":"<p>S\u00f3ng 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\u00e3 tr\u1edf th\u00e0nh m\u1ed9t c\u00f4ng c\u1ee5 v\u00f4 c\u00f9ng h\u1eefu \u00edch trong nhi\u1ec1u l\u0129nh v\u1ef1c, t\u1eeb y t\u1ebf v\u00e0 c\u00f4ng nghi\u1ec7p \u0111\u1ebfn \u0111\u1eddi s\u1ed1ng h\u00e0ng ng\u00e0y. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd \u0111i s\u00e2u v\u00e0o t\u00ecm hi\u1ec3u nh\u1eefng \u1ee9ng d\u1ee5ng \u0111a d\u1ea1ng c\u1ee7a s\u00f3ng si\u00eau \u00e2m, minh h\u1ecda t\u1ea7m quan tr\u1ecdng c\u1ee7a c\u00f4ng ngh\u1ec7 n\u00e0y trong cu\u1ed9c s\u1ed1ng hi\u1ec7n \u0111\u1ea1i.<\/p>\n<h3>\u1ee8ng d\u1ee5ng trong Y t\u1ebf<\/h3>\n<p>S\u00f3ng si\u00eau \u00e2m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong ch\u1ea9n \u0111o\u00e1n h\u00ecnh \u1ea3nh y t\u1ebf. K\u1ef9 thu\u1eadt si\u00eau \u00e2m cho ph\u00e9p t\u1ea1o ra h\u00ecnh \u1ea3nh c\u1ee7a c\u00e1c c\u01a1 quan n\u1ed9i t\u1ea1ng, m\u1ea1ch m\u00e1u v\u00e0 m\u00f4 m\u1ec1m m\u00e0 kh\u00f4ng c\u1ea7n s\u1eed d\u1ee5ng tia X g\u00e2y h\u1ea1i.  M\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng ph\u1ed5 bi\u1ebfn bao g\u1ed3m:<\/p>\n<ul>\n<li>Si\u00eau \u00e2m thai nhi: Theo d\u00f5i s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a thai nhi, ph\u00e1t hi\u1ec7n d\u1ecb t\u1eadt b\u1ea9m sinh.<\/li>\n<li>Si\u00eau \u00e2m tim: \u0110\u00e1nh gi\u00e1 ch\u1ee9c n\u0103ng tim, ph\u00e1t hi\u1ec7n c\u00e1c b\u1ec7nh l\u00fd van tim, c\u01a1 tim.<\/li>\n<li>Si\u00eau \u00e2m b\u1ee5ng: Ki\u1ec3m tra gan, th\u1eadn, t\u1ee5y, t\u00fai m\u1eadt v\u00e0 c\u00e1c c\u01a1 quan kh\u00e1c trong \u1ed5 b\u1ee5ng.<\/li>\n<\/ul>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>\u1ee8ng d\u1ee5ng<\/th>\n<th>M\u00f4 t\u1ea3<\/th>\n<th>L\u1ee3i \u00edch<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Si\u00eau \u00e2m thai<\/td>\n<td>Theo d\u00f5i s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a thai nhi<\/td>\n<td>An to\u00e0n, kh\u00f4ng x\u00e2m l\u1ea5n<\/td>\n<\/tr>\n<tr>\n<td>Si\u00eau \u00e2m tim<\/td>\n<td>\u0110\u00e1nh gi\u00e1 ch\u1ee9c n\u0103ng tim<\/td>\n<td>Nhanh ch\u00f3ng, ch\u00ednh x\u00e1c<\/td>\n<\/tr>\n<tr>\n<td>Si\u00eau \u00e2m b\u1ee5ng<\/td>\n<td>Ki\u1ec3m tra c\u00e1c c\u01a1 quan trong \u1ed5 b\u1ee5ng<\/td>\n<td>Ph\u00e1t hi\u1ec7n s\u1edbm b\u1ec7nh l\u00fd<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u1ee8ng d\u1ee5ng trong C\u00f4ng nghi\u1ec7p<\/h3>\n<p>Trong c\u00f4ng nghi\u1ec7p, s\u00f3ng si\u00eau \u00e2m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho nhi\u1ec1u m\u1ee5c \u0111\u00edch kh\u00e1c nhau, bao g\u1ed3m:<\/p>\n<ul>\n<li>Ki\u1ec3m tra kh\u00f4ng ph\u00e1 h\u1ee7y: Ph\u00e1t hi\u1ec7n c\u00e1c khuy\u1ebft t\u1eadt b\u00ean trong v\u1eadt li\u1ec7u m\u00e0 kh\u00f4ng c\u1ea7n ph\u00e1 h\u1ee7y ch\u00fang.<\/li>\n<li>H\u00e0n si\u00eau \u00e2m: N\u1ed1i c\u00e1c v\u1eadt li\u1ec7u b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng n\u0103ng l\u01b0\u1ee3ng rung \u0111\u1ed9ng si\u00eau \u00e2m.<\/li>\n<li>L\u00e0m s\u1ea1ch si\u00eau \u00e2m: Lo\u1ea1i b\u1ecf b\u1ee5i b\u1ea9n v\u00e0 t\u1ea1p ch\u1ea5t kh\u1ecfi c\u00e1c b\u1ec1 m\u1eb7t ph\u1ee9c t\u1ea1p.<\/li>\n<\/ul>\n<h3>\u1ee8ng d\u1ee5ng trong \u0110\u1eddi s\u1ed1ng<\/h3>\n<p>S\u00f3ng si\u00eau \u00e2m c\u0169ng c\u00f3 nhi\u1ec1u \u1ee9ng d\u1ee5ng trong \u0111\u1eddi s\u1ed1ng h\u00e0ng ng\u00e0y, ch\u1eb3ng h\u1ea1n nh\u01b0:<\/p>\n<ul>\n<li>\u0110o kho\u1ea3ng c\u00e1ch: S\u1eed d\u1ee5ng trong c\u00e1c thi\u1ebft b\u1ecb \u0111o kho\u1ea3ng c\u00e1ch, c\u1ea3m bi\u1ebfn \u0111\u1ed7 xe.<\/li>\n<li>Xua \u0111u\u1ed5i c\u00f4n tr\u00f9ng: M\u1ed9t s\u1ed1 thi\u1ebft b\u1ecb s\u1eed d\u1ee5ng s\u00f3ng si\u00eau \u00e2m \u0111\u1ec3 xua \u0111u\u1ed5i c\u00f4n tr\u00f9ng g\u00e2y h\u1ea1i.<\/li>\n<li>L\u00e0m s\u1ea1ch \u0111\u1ed3 trang s\u1ee9c: M\u00e1y l\u00e0m s\u1ea1ch si\u00eau \u00e2m gi\u00fap lo\u1ea1i b\u1ecf b\u1ee5i b\u1ea9n v\u00e0 m\u1ea3ng b\u00e1m tr\u00ean \u0111\u1ed3 trang s\u1ee9c.<\/li>\n<\/ul>\n<h3>\u1ee8ng d\u1ee5ng trong Nghi\u00ean c\u1ee9u Khoa h\u1ecdc<\/h3>\n<p>S\u00f3ng si\u00eau \u00e2m c\u00f2n \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng trong nghi\u00ean c\u1ee9u khoa h\u1ecdc, v\u00ed d\u1ee5 nh\u01b0:<\/p>\n<ul>\n<li>Nghi\u00ean c\u1ee9u v\u1eadt li\u1ec7u:  Ph\u00e2n t\u00edch c\u1ea5u tr\u00fac v\u00e0 t\u00ednh ch\u1ea5t c\u1ee7a v\u1eadt li\u1ec7u.<\/li>\n<li>Nghi\u00ean c\u1ee9u sinh h\u1ecdc: Nghi\u00ean c\u1ee9u t\u1ebf b\u00e0o v\u00e0 m\u00f4 sinh h\u1ecdc.<\/li>\n<\/ul>\n<p>T\u00f3m l\u1ea1i, s\u00f3ng si\u00eau \u00e2m l\u00e0 m\u1ed9t c\u00f4ng ngh\u1ec7 \u0111a n\u0103ng v\u1edbi v\u00f4 s\u1ed1 \u1ee9ng d\u1ee5ng trong nhi\u1ec1u l\u0129nh v\u1ef1c kh\u00e1c nhau. T\u1eeb ch\u1ea9n \u0111o\u00e1n y t\u1ebf \u0111\u1ebfn c\u00f4ng nghi\u1ec7p v\u00e0 \u0111\u1eddi s\u1ed1ng h\u00e0ng ng\u00e0y, s\u00f3ng si\u00eau \u00e2m \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c c\u1ea3i thi\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng cu\u1ed9c s\u1ed1ng v\u00e0 th\u00fac \u0111\u1ea9y s\u1ef1 ph\u00e1t tri\u1ec3n khoa h\u1ecdc c\u00f4ng ngh\u1ec7.  S\u1ef1 ph\u00e1t tri\u1ec3n kh\u00f4ng ng\u1eebng c\u1ee7a c\u00f4ng ngh\u1ec7 si\u00eau \u00e2m h\u1ee9a h\u1eb9n s\u1ebd mang l\u1ea1i nhi\u1ec1u \u1ee9ng d\u1ee5ng ti\u1ec1m n\u0103ng h\u01a1n n\u1eefa trong t\u01b0\u01a1ng lai.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>S\u00f3ng 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\u00e3 tr\u1edf th\u00e0nh m\u1ed9t c\u00f4ng c\u1ee5 v\u00f4 c\u00f9ng h\u1eefu \u00edch trong nhi\u1ec1u l\u0129nh v\u1ef1c, t\u1eeb y t\u1ebf v\u00e0 c\u00f4ng nghi\u1ec7p \u0111\u1ebfn \u0111\u1eddi s\u1ed1ng h\u00e0ng ng\u00e0y. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd \u0111i s\u00e2u v\u00e0o t\u00ecm hi\u1ec3u nh\u1eefng \u1ee9ng d\u1ee5ng \u0111a d\u1ea1ng c\u1ee7a<\/p>\n","protected":false},"author":1,"featured_media":26470,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6406],"tags":[],"class_list":["post-43844","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\/43844","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=43844"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts\/43844\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media\/26470"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media?parent=43844"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/categories?post=43844"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/tags?post=43844"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}