{"id":45404,"date":"2023-04-22T02:56:21","date_gmt":"2023-04-22T07:56:21","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/which-animals-produce-ultrasonic-sound\/"},"modified":"2025-01-21T07:30:31","modified_gmt":"2025-01-21T12:30:31","slug":"which-animals-produce-ultrasonic-sound","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/vi\/which-animals-produce-ultrasonic-sound\/","title":{"rendered":"Kh\u00e1m ph\u00e1 th\u1ebf gi\u1edbi \u00e2m thanh si\u00eau \u00e2m c\u1ee7a \u0111\u1ed9ng v\u1eadt"},"content":{"rendered":"

\u00c2m thanh si\u00eau \u00e2m, n\u1eb1m ngo\u00e0i ng\u01b0\u1ee1ng nghe c\u1ee7a con ng\u01b0\u1eddi, \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong \u0111\u1eddi s\u1ed1ng c\u1ee7a nhi\u1ec1u lo\u00e0i \u0111\u1ed9ng v\u1eadt. Ch\u00fang s\u1eed d\u1ee5ng kh\u1ea3 n\u0103ng ph\u00e1t v\u00e0 nh\u1eadn bi\u1ebft \u00e2m thanh t\u1ea7n s\u1ed1 cao n\u00e0y cho nhi\u1ec1u m\u1ee5c \u0111\u00edch kh\u00e1c nhau, t\u1eeb s\u0103n m\u1ed3i, \u0111\u1ecbnh v\u1ecb, giao ti\u1ebfp \u0111\u1ebfn c\u1ea3 vi\u1ec7c t\u1ef1 v\u1ec7. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd kh\u00e1m ph\u00e1 th\u1ebf gi\u1edbi \u00e2m thanh si\u00eau \u00e2m v\u00e0 t\u00ecm hi\u1ec3u nh\u1eefng lo\u00e0i \u0111\u1ed9ng v\u1eadt n\u00e0o s\u1edf h\u1eefu kh\u1ea3 n\u0103ng \u0111\u1eb7c bi\u1ec7t n\u00e0y.<\/p>\n

D\u01a1i – Chuy\u00ean gia \u0111\u1ecbnh v\u1ecb b\u1eb1ng si\u00eau \u00e2m<\/h3>\n

D\u01a1i l\u00e0 lo\u00e0i \u0111\u1ed9ng v\u1eadt \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn nhi\u1ec1u nh\u1ea5t v\u1edbi kh\u1ea3 n\u0103ng s\u1eed d\u1ee5ng si\u00eau \u00e2m. Ch\u00fang ph\u00e1t ra c\u00e1c xung si\u00eau \u00e2m ng\u1eafn v\u00e0 l\u1eafng nghe ti\u1ebfng v\u1ecdng ph\u1ea3n h\u1ed3i l\u1ea1i t\u1eeb m\u00f4i tr\u01b0\u1eddng xung quanh. Ph\u01b0\u01a1ng ph\u00e1p \u0111\u1ecbnh v\u1ecb b\u1eb1ng ti\u1ebfng vang n\u00e0y, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 echolocation, cho ph\u00e9p d\u01a1i "nh\u00ecn" trong b\u00f3ng t\u1ed1i, x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed con m\u1ed3i, tr\u00e1nh ch\u01b0\u1edbng ng\u1ea1i v\u1eadt v\u00e0 th\u1eadm ch\u00ed ph\u00e2n bi\u1ec7t \u0111\u01b0\u1ee3c c\u00e1c lo\u1ea1i c\u00f4n tr\u00f9ng kh\u00e1c nhau.<\/p>\n

C\u00e1 voi v\u00e0 C\u00e1 heo – Giao ti\u1ebfp d\u01b0\u1edbi \u0111\u1ea1i d\u01b0\u01a1ng<\/h3>\n

C\u00e1 voi v\u00e0 c\u00e1 heo c\u0169ng s\u1eed d\u1ee5ng si\u00eau \u00e2m \u0111\u1ec3 giao ti\u1ebfp v\u00e0 \u0111\u1ecbnh v\u1ecb trong m\u00f4i tr\u01b0\u1eddng n\u01b0\u1edbc. C\u00e1 voi c\u00f3 r\u0103ng, nh\u01b0 c\u00e1 heo, s\u1eed d\u1ee5ng echolocation t\u01b0\u01a1ng t\u1ef1 nh\u01b0 d\u01a1i \u0111\u1ec3 t\u00ecm ki\u1ebfm th\u1ee9c \u0103n v\u00e0 di chuy\u1ec3n trong v\u00f9ng n\u01b0\u1edbc t\u1ed1i. C\u00e1 voi t\u1ea5m s\u1eebng h\u00e0m, m\u1eb7t kh\u00e1c, s\u1eed d\u1ee5ng \u00e2m thanh t\u1ea7n s\u1ed1 th\u1ea5p h\u01a1n, m\u1ed9t s\u1ed1 n\u1eb1m trong ph\u1ea1m vi si\u00eau \u00e2m, \u0111\u1ec3 giao ti\u1ebfp tr\u00ean kho\u1ea3ng c\u00e1ch r\u1ea5t xa.<\/p>\n

Chu\u1ed9t ch\u00f9 – K\u1ebb s\u0103n m\u1ed3i t\u00ed hon<\/h3>\n

Gi\u1ed1ng nh\u01b0 d\u01a1i, chu\u1ed9t ch\u00f9 c\u0169ng s\u1eed d\u1ee5ng echolocation \u0111\u1ec3 \u0111\u1ecbnh h\u01b0\u1edbng v\u00e0 s\u0103n m\u1ed3i. Tuy nhi\u00ean, kh\u1ea3 n\u0103ng \u0111\u1ecbnh v\u1ecb b\u1eb1ng si\u00eau \u00e2m c\u1ee7a chu\u1ed9t ch\u00f9 kh\u00f4ng tinh vi b\u1eb1ng d\u01a1i. Ch\u00fang ch\u1ee7 y\u1ebfu s\u1eed d\u1ee5ng si\u00eau \u00e2m \u0111\u1ec3 ph\u00e1t hi\u1ec7n con m\u1ed3i nh\u1ecf nh\u01b0 c\u00f4n tr\u00f9ng v\u00e0 giun \u0111\u1ea5t trong m\u00f4i tr\u01b0\u1eddng t\u1ed1i t\u0103m ho\u1eb7c r\u1eadm r\u1ea1p.<\/p>\n

M\u1ed9t s\u1ed1 lo\u00e0i c\u00f4n tr\u00f9ng – Nghe \u0111\u1ec3 tr\u1ed1n tr\u00e1nh<\/h3>\n

Kh\u00f4ng ch\u1ec9 \u0111\u1ed9ng v\u1eadt c\u00f3 v\u00fa m\u1edbi c\u00f3 kh\u1ea3 n\u0103ng li\u00ean quan \u0111\u1ebfn si\u00eau \u00e2m. M\u1ed9t s\u1ed1 lo\u00e0i c\u00f4n tr\u00f9ng, ch\u1eb3ng h\u1ea1n nh\u01b0 b\u01b0\u1edbm \u0111\u00eam, \u0111\u00e3 ph\u00e1t tri\u1ec3n kh\u1ea3 n\u0103ng nghe si\u00eau \u00e2m \u0111\u1ec3 ph\u00e1t hi\u1ec7n k\u1ebb th\u00f9, \u0111\u1eb7c bi\u1ec7t l\u00e0 d\u01a1i. Khi nghe th\u1ea5y ti\u1ebfng k\u00eau si\u00eau \u00e2m c\u1ee7a d\u01a1i, b\u01b0\u1edbm \u0111\u00eam c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c \u0111\u1ed9ng t\u00e1c n\u00e9 tr\u00e1nh \u0111\u1ec3 tho\u00e1t kh\u1ecfi s\u1ef1 s\u0103n \u0111u\u1ed5i.<\/p>\n\n\n\n\n\n\n\n\n\n
Lo\u00e0i v\u1eadt<\/th>\nM\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng si\u00eau \u00e2m<\/th>\nT\u1ea7n s\u1ed1 si\u00eau \u00e2m (kHz)<\/th>\n<\/tr>\n<\/thead>\n
D\u01a1i<\/td>\n\u0110\u1ecbnh v\u1ecb, s\u0103n m\u1ed3i<\/td>\n20 – 200<\/td>\n<\/tr>\n
C\u00e1 heo<\/td>\n\u0110\u1ecbnh v\u1ecb, giao ti\u1ebfp<\/td>\n20 – 150<\/td>\n<\/tr>\n
C\u00e1 voi t\u1ea5m s\u1eebng h\u00e0m<\/td>\nGiao ti\u1ebfp<\/td>\n10 – 20<\/td>\n<\/tr>\n
Chu\u1ed9t ch\u00f9<\/td>\n\u0110\u1ecbnh v\u1ecb, s\u0103n m\u1ed3i<\/td>\n20 – 100<\/td>\n<\/tr>\n
B\u01b0\u1edbm \u0111\u00eam<\/td>\nPh\u00e1t hi\u1ec7n k\u1ebb th\u00f9<\/td>\n20 – 150<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Vi\u1ec7c nghi\u00ean c\u1ee9u kh\u1ea3 n\u0103ng s\u1eed d\u1ee5ng si\u00eau \u00e2m c\u1ee7a \u0111\u1ed9ng v\u1eadt kh\u00f4ng ch\u1ec9 gi\u00fap ch\u00fang ta hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 th\u1ebf gi\u1edbi t\u1ef1 nhi\u00ean m\u00e0 c\u00f2n c\u00f3 th\u1ec3 \u1ee9ng d\u1ee5ng v\u00e0o nhi\u1ec1u l\u0129nh v\u1ef1c kh\u00e1c nhau. V\u00ed d\u1ee5, nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a sonar, m\u1ed9t c\u00f4ng ngh\u1ec7 s\u1eed d\u1ee5ng s\u00f3ng \u00e2m \u0111\u1ec3 \u0111\u1ecbnh v\u1ecb d\u01b0\u1edbi n\u01b0\u1edbc, \u0111\u01b0\u1ee3c l\u1ea5y c\u1ea3m h\u1ee9ng t\u1eeb kh\u1ea3 n\u0103ng echolocation c\u1ee7a c\u00e1 voi v\u00e0 d\u01a1i. S\u1ef1 hi\u1ec3u bi\u1ebft s\u00e2u s\u1eafc v\u1ec1 si\u00eau \u00e2m trong th\u1ebf gi\u1edbi \u0111\u1ed9ng v\u1eadt h\u1ee9a h\u1eb9n m\u1edf ra nhi\u1ec1u ti\u1ec1m n\u0103ng \u1ee9ng d\u1ee5ng trong t\u01b0\u01a1ng lai.<\/p>\n","protected":false},"excerpt":{"rendered":"

\u00c2m thanh si\u00eau \u00e2m, n\u1eb1m ngo\u00e0i ng\u01b0\u1ee1ng nghe c\u1ee7a con ng\u01b0\u1eddi, \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong \u0111\u1eddi s\u1ed1ng c\u1ee7a nhi\u1ec1u lo\u00e0i \u0111\u1ed9ng v\u1eadt. Ch\u00fang s\u1eed d\u1ee5ng kh\u1ea3 n\u0103ng ph\u00e1t v\u00e0 nh\u1eadn bi\u1ebft \u00e2m thanh t\u1ea7n s\u1ed1 cao n\u00e0y cho nhi\u1ec1u m\u1ee5c \u0111\u00edch kh\u00e1c nhau, t\u1eeb s\u0103n m\u1ed3i, \u0111\u1ecbnh v\u1ecb, giao ti\u1ebfp \u0111\u1ebfn c\u1ea3 vi\u1ec7c<\/p>\n","protected":false},"author":1,"featured_media":26469,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6406],"tags":[],"class_list":["post-45404","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\/45404","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=45404"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts\/45404\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media\/26469"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media?parent=45404"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/categories?post=45404"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/tags?post=45404"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}