{"id":44972,"date":"2023-04-22T03:07:08","date_gmt":"2023-04-22T08:07:08","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/how-does-transducer-work\/"},"modified":"2025-01-21T07:12:48","modified_gmt":"2025-01-21T12:12:48","slug":"how-does-transducer-work","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/vi\/how-does-transducer-work\/","title":{"rendered":"Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a transducer"},"content":{"rendered":"

B\u1ed9 chuy\u1ec3n \u0111\u1ed5i (transducer), m\u1ed9t thi\u1ebft b\u1ecb quan tr\u1ecdng trong nhi\u1ec1u \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p v\u00e0 \u0111\u1eddi s\u1ed1ng, c\u00f3 ch\u1ee9c n\u0103ng bi\u1ebfn \u0111\u1ed5i m\u1ed9t d\u1ea1ng n\u0103ng l\u01b0\u1ee3ng sang m\u1ed9t d\u1ea1ng n\u0103ng l\u01b0\u1ee3ng kh\u00e1c. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd \u0111i s\u00e2u v\u00e0o nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a b\u1ed9 chuy\u1ec3n \u0111\u1ed5i, t\u1eeb c\u00e1c kh\u00e1i ni\u1ec7m c\u01a1 b\u1ea3n \u0111\u1ebfn c\u00e1c lo\u1ea1i b\u1ed9 chuy\u1ec3n \u0111\u1ed5i ph\u1ed5 bi\u1ebfn.<\/p>\n

Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng chung c\u1ee7a b\u1ed9 chuy\u1ec3n \u0111\u1ed5i<\/h3>\n

B\u1ed9 chuy\u1ec3n \u0111\u1ed5i ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean c\u00e1c hi\u1ec7u \u1ee9ng v\u1eadt l\u00fd kh\u00e1c nhau \u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng. Qu\u00e1 tr\u00ecnh n\u00e0y th\u01b0\u1eddng li\u00ean quan \u0111\u1ebfn vi\u1ec7c thay \u0111\u1ed5i m\u1ed9t thu\u1ed9c t\u00ednh v\u1eadt l\u00fd c\u1ee7a b\u1ed9 chuy\u1ec3n \u0111\u1ed5i khi ti\u1ebfp nh\u1eadn n\u0103ng l\u01b0\u1ee3ng \u0111\u1ea7u v\u00e0o, v\u00e0 s\u1ef1 thay \u0111\u1ed5i n\u00e0y sau \u0111\u00f3 \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ed5i th\u00e0nh d\u1ea1ng n\u0103ng l\u01b0\u1ee3ng \u0111\u1ea7u ra mong mu\u1ed1n. V\u00ed d\u1ee5, m\u1ed9t microphone chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng \u00e2m thanh (s\u00f3ng \u00e2m) th\u00e0nh n\u0103ng l\u01b0\u1ee3ng \u0111i\u1ec7n, trong khi m\u1ed9t loa l\u00e0m ng\u01b0\u1ee3c l\u1ea1i, bi\u1ebfn \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng \u0111i\u1ec7n th\u00e0nh n\u0103ng l\u01b0\u1ee3ng \u00e2m thanh.<\/p>\n

C\u00e1c lo\u1ea1i b\u1ed9 chuy\u1ec3n \u0111\u1ed5i ph\u1ed5 bi\u1ebfn<\/h3>\n

C\u00f3 r\u1ea5t nhi\u1ec1u lo\u1ea1i b\u1ed9 chuy\u1ec3n \u0111\u1ed5i, m\u1ed7i lo\u1ea1i \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i gi\u1eefa c\u00e1c d\u1ea1ng n\u0103ng l\u01b0\u1ee3ng c\u1ee5 th\u1ec3. M\u1ed9t s\u1ed1 lo\u1ea1i ph\u1ed5 bi\u1ebfn bao g\u1ed3m:<\/p>\n\n\n\n\n\n\n\n\n\n\n
Lo\u1ea1i B\u1ed9 Chuy\u1ec3n \u0110\u1ed5i<\/th>\nN\u0103ng l\u01b0\u1ee3ng \u0110\u1ea7u V\u00e0o<\/th>\nN\u0103ng l\u01b0\u1ee3ng \u0110\u1ea7u Ra<\/th>\n\u1ee8ng d\u1ee5ng<\/th>\n<\/tr>\n<\/thead>\n
Microphone<\/td>\n\u00c2m thanh<\/td>\n\u0110i\u1ec7n<\/td>\nGhi \u00e2m, giao ti\u1ebfp<\/td>\n<\/tr>\n
Loa<\/td>\n\u0110i\u1ec7n<\/td>\n\u00c2m thanh<\/td>\nPh\u00e1t nh\u1ea1c, th\u00f4ng b\u00e1o<\/td>\n<\/tr>\n
B\u1ed9 chuy\u1ec3n \u0111\u1ed5i \u00e1p su\u1ea5t<\/td>\n\u00c1p su\u1ea5t<\/td>\n\u0110i\u1ec7n<\/td>\n\u0110o l\u01b0\u1eddng \u00e1p su\u1ea5t, c\u1ea3m bi\u1ebfn<\/td>\n<\/tr>\n
B\u1ed9 chuy\u1ec3n \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9<\/td>\nNhi\u1ec7t \u0111\u1ed9<\/td>\n\u0110i\u1ec7n<\/td>\n\u0110i\u1ec1u khi\u1ec3n nhi\u1ec7t \u0111\u1ed9, \u0111o l\u01b0\u1eddng<\/td>\n<\/tr>\n
B\u1ed9 chuy\u1ec3n \u0111\u1ed5i \u00e1nh s\u00e1ng<\/td>\n\u00c1nh s\u00e1ng<\/td>\n\u0110i\u1ec7n<\/td>\nPin m\u1eb7t tr\u1eddi, c\u1ea3m bi\u1ebfn \u00e1nh s\u00e1ng<\/td>\n<\/tr>\n
B\u1ed9 chuy\u1ec3n \u0111\u1ed5i si\u00eau \u00e2m<\/td>\n\u0110i\u1ec7n<\/td>\nSi\u00eau \u00e2m<\/td>\nV\u1ec7 sinh c\u00f4ng nghi\u1ec7p, ki\u1ec3m tra kh\u00f4ng ph\u00e1 h\u1ee7y<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

B\u1ed9 chuy\u1ec3n \u0111\u1ed5i si\u00eau \u00e2m<\/h3>\n

B\u1ed9 chuy\u1ec3n \u0111\u1ed5i si\u00eau \u00e2m ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean hi\u1ec7u \u1ee9ng \u00e1p \u0111i\u1ec7n. Khi \u00e1p m\u1ed9t \u0111i\u1ec7n \u00e1p xoay chi\u1ec1u v\u00e0o v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n, v\u1eadt li\u1ec7u n\u00e0y s\u1ebd dao \u0111\u1ed9ng v\u1edbi t\u1ea7n s\u1ed1 si\u00eau \u00e2m. Dao \u0111\u1ed9ng n\u00e0y t\u1ea1o ra s\u00f3ng si\u00eau \u00e2m. Ng\u01b0\u1ee3c l\u1ea1i, khi s\u00f3ng si\u00eau \u00e2m t\u00e1c \u0111\u1ed9ng l\u00ean v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n, n\u00f3 t\u1ea1o ra m\u1ed9t \u0111i\u1ec7n \u00e1p xoay chi\u1ec1u.<\/p>\n

Hi\u1ec7u \u1ee9ng \u00e1p \u0111i\u1ec7n trong b\u1ed9 chuy\u1ec3n \u0111\u1ed5i si\u00eau \u00e2m<\/h3>\n

Hi\u1ec7u \u1ee9ng \u00e1p \u0111i\u1ec7n l\u00e0 ch\u00eca kh\u00f3a cho ho\u1ea1t \u0111\u1ed9ng c\u1ee7a b\u1ed9 chuy\u1ec3n \u0111\u1ed5i si\u00eau \u00e2m. V\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n, nh\u01b0 th\u1ea1ch anh ho\u1eb7c g\u1ed1m, c\u00f3 kh\u1ea3 n\u0103ng bi\u1ebfn \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng c\u01a1 h\u1ecdc th\u00e0nh n\u0103ng l\u01b0\u1ee3ng \u0111i\u1ec7n v\u00e0 ng\u01b0\u1ee3c l\u1ea1i. Khi v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n b\u1ecb n\u00e9n ho\u1eb7c gi\u00e3n n\u1edf, n\u00f3 t\u1ea1o ra m\u1ed9t \u0111i\u1ec7n \u00e1p. Ng\u01b0\u1ee3c l\u1ea1i, khi \u00e1p m\u1ed9t \u0111i\u1ec7n \u00e1p v\u00e0o v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n, n\u00f3 s\u1ebd thay \u0111\u1ed5i k\u00edch th\u01b0\u1edbc, t\u1ea1o ra s\u00f3ng si\u00eau \u00e2m.<\/p>\n

\u1ee8ng d\u1ee5ng c\u1ee7a b\u1ed9 chuy\u1ec3n \u0111\u1ed5i si\u00eau \u00e2m<\/h3>\n

B\u1ed9 chuy\u1ec3n \u0111\u1ed5i si\u00eau \u00e2m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u l\u0129nh v\u1ef1c, bao g\u1ed3m y t\u1ebf (si\u00eau \u00e2m ch\u1ea9n \u0111o\u00e1n), c\u00f4ng nghi\u1ec7p (v\u1ec7 sinh, h\u00e0n si\u00eau \u00e2m), v\u00e0 h\u00e0ng h\u1ea3i (sonar). V\u00ed d\u1ee5, trong v\u1ec7 sinh c\u00f4ng nghi\u1ec7p, s\u00f3ng si\u00eau \u00e2m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 lo\u1ea1i b\u1ecf b\u1ee5i b\u1ea9n v\u00e0 c\u00e1c ch\u1ea5t b\u1ea9n kh\u00e1c kh\u1ecfi b\u1ec1 m\u1eb7t v\u1eadt li\u1ec7u.<\/p>\n

T\u00f3m l\u1ea1i, b\u1ed9 chuy\u1ec3n \u0111\u1ed5i l\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n thi\u1ebft y\u1ebfu trong nhi\u1ec1u h\u1ec7 th\u1ed1ng v\u00e0 \u1ee9ng d\u1ee5ng kh\u00e1c nhau. S\u1ef1 \u0111a d\u1ea1ng v\u1ec1 lo\u1ea1i h\u00ecnh v\u00e0 ch\u1ee9c n\u0103ng c\u1ee7a ch\u00fang ph\u1ea3n \u00e1nh t\u00ednh linh ho\u1ea1t v\u00e0 t\u1ea7m quan tr\u1ecdng c\u1ee7a ch\u00fang trong vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng v\u00e0 \u0111\u00e1p \u1ee9ng c\u00e1c nhu c\u1ea7u c\u00f4ng ngh\u1ec7 ng\u00e0y c\u00e0ng cao. Hi\u1ec3u r\u00f5 nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a b\u1ed9 chuy\u1ec3n \u0111\u1ed5i l\u00e0 b\u01b0\u1edbc \u0111\u1ea7u ti\u00ean \u0111\u1ec3 khai th\u00e1c t\u1ed1i \u0111a ti\u1ec1m n\u0103ng c\u1ee7a ch\u00fang trong t\u01b0\u01a1ng lai.<\/p>\n","protected":false},"excerpt":{"rendered":"

B\u1ed9 chuy\u1ec3n \u0111\u1ed5i (transducer), m\u1ed9t thi\u1ebft b\u1ecb quan tr\u1ecdng trong nhi\u1ec1u \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p v\u00e0 \u0111\u1eddi s\u1ed1ng, c\u00f3 ch\u1ee9c n\u0103ng bi\u1ebfn \u0111\u1ed5i m\u1ed9t d\u1ea1ng n\u0103ng l\u01b0\u1ee3ng sang m\u1ed9t d\u1ea1ng n\u0103ng l\u01b0\u1ee3ng kh\u00e1c. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd \u0111i s\u00e2u v\u00e0o nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a b\u1ed9 chuy\u1ec3n \u0111\u1ed5i, t\u1eeb c\u00e1c kh\u00e1i ni\u1ec7m c\u01a1 b\u1ea3n \u0111\u1ebfn<\/p>\n","protected":false},"author":1,"featured_media":24649,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6406],"tags":[],"class_list":["post-44972","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\/44972","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=44972"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts\/44972\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media\/24649"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media?parent=44972"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/categories?post=44972"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/tags?post=44972"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}