{"id":47444,"date":"2023-04-22T00:19:17","date_gmt":"2023-04-22T05:19:17","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/how-to-measure-ultrasonic-power\/"},"modified":"2025-01-21T07:20:53","modified_gmt":"2025-01-21T12:20:53","slug":"how-to-measure-ultrasonic-power","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/vi\/how-to-measure-ultrasonic-power\/","title":{"rendered":"\u0110o c\u00f4ng su\u1ea5t si\u00eau \u00e2m: Ph\u01b0\u01a1ng ph\u00e1p v\u00e0 \u1ee9ng d\u1ee5ng"},"content":{"rendered":"

Vi\u1ec7c \u0111o c\u00f4ng su\u1ea5t si\u00eau \u00e2m \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong nhi\u1ec1u \u1ee9ng d\u1ee5ng, t\u1eeb y t\u1ebf v\u00e0 c\u00f4ng nghi\u1ec7p \u0111\u1ebfn nghi\u00ean c\u1ee9u khoa h\u1ecdc. Hi\u1ec3u r\u00f5 c\u00f4ng su\u1ea5t th\u1ef1c t\u1ebf c\u1ee7a thi\u1ebft b\u1ecb si\u00eau \u00e2m gi\u00fap t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t, \u0111\u1ea3m b\u1ea3o an to\u00e0n v\u00e0 ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng qu\u00e1 tr\u00ecnh. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd tr\u00ecnh b\u00e0y chi ti\u1ebft c\u00e1c ph\u01b0\u01a1ng ph\u00e1p \u0111o c\u00f4ng su\u1ea5t si\u00eau \u00e2m, c\u0169ng nh\u01b0 nh\u1eefng l\u01b0u \u00fd quan tr\u1ecdng trong qu\u00e1 tr\u00ecnh \u0111o.<\/p>\n

Ph\u01b0\u01a1ng ph\u00e1p c\u00e2n b\u1eb1ng l\u1ef1c<\/h3>\n

Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y d\u1ef1a tr\u00ean nguy\u00ean t\u1eafc \u0111o l\u1ef1c t\u00e1c \u0111\u1ed9ng c\u1ee7a s\u00f3ng si\u00eau \u00e2m l\u00ean m\u1ed9t b\u1ec1 m\u1eb7t h\u1ea5p th\u1ee5. M\u1ed9t c\u1ea3m bi\u1ebfn l\u1ef1c \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111o l\u1ef1c n\u00e0y, t\u1eeb \u0111\u00f3 t\u00ednh to\u00e1n c\u00f4ng su\u1ea5t d\u1ef1a tr\u00ean c\u00f4ng th\u1ee9c P = F*v, v\u1edbi F l\u00e0 l\u1ef1c \u0111o \u0111\u01b0\u1ee3c v\u00e0 v l\u00e0 v\u1eadn t\u1ed1c s\u00f3ng si\u00eau \u00e2m trong m\u00f4i tr\u01b0\u1eddng truy\u1ec1n s\u00f3ng. \u01afu \u0111i\u1ec3m c\u1ee7a ph\u01b0\u01a1ng ph\u00e1p n\u00e0y l\u00e0 t\u00ednh \u0111\u01a1n gi\u1ea3n v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c t\u01b0\u01a1ng \u0111\u1ed1i cao. Tuy nhi\u00ean, c\u1ea7n l\u1ef1a ch\u1ecdn c\u1ea3m bi\u1ebfn l\u1ef1c ph\u00f9 h\u1ee3p v\u1edbi d\u1ea3i t\u1ea7n s\u1ed1 v\u00e0 c\u00f4ng su\u1ea5t c\u1ee7a s\u00f3ng si\u00eau \u00e2m.<\/p>\n

Ph\u01b0\u01a1ng ph\u00e1p c\u00e2n b\u1eb1ng nhi\u1ec7t<\/h3>\n

\u0110\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p ph\u1ed5 bi\u1ebfn nh\u1ea5t \u0111\u1ec3 \u0111o c\u00f4ng su\u1ea5t si\u00eau \u00e2m. Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng si\u00eau \u00e2m th\u00e0nh nhi\u1ec7t n\u0103ng khi s\u00f3ng si\u00eau \u00e2m lan truy\u1ec1n trong m\u00f4i tr\u01b0\u1eddng h\u1ea5p th\u1ee5. Nhi\u1ec7t l\u01b0\u1ee3ng sinh ra \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng c\u1ea3m bi\u1ebfn nhi\u1ec7t \u0111\u1ed9, v\u00e0 c\u00f4ng su\u1ea5t \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n d\u1ef1a tr\u00ean s\u1ef1 thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 theo th\u1eddi gian.<\/p>\n

Ph\u01b0\u01a1ng ph\u00e1p hydrophone<\/h3>\n

Hydrophone l\u00e0 m\u1ed9t lo\u1ea1i c\u1ea3m bi\u1ebfn \u00e1p su\u1ea5t \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1eb7c bi\u1ec7t \u0111\u1ec3 \u0111o \u00e1p su\u1ea5t \u00e2m thanh trong n\u01b0\u1edbc. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y cho ph\u00e9p \u0111o tr\u1ef1c ti\u1ebfp c\u01b0\u1eddng \u0111\u1ed9 \u00e2m thanh t\u1ea1i m\u1ed9t \u0111i\u1ec3m c\u1ee5 th\u1ec3 trong tr\u01b0\u1eddng si\u00eau \u00e2m. T\u1eeb gi\u00e1 tr\u1ecb c\u01b0\u1eddng \u0111\u1ed9 \u00e2m thanh, c\u00f3 th\u1ec3 t\u00ednh to\u00e1n c\u00f4ng su\u1ea5t si\u00eau \u00e2m. Ph\u01b0\u01a1ng ph\u00e1p hydrophone th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c \u1ee9ng d\u1ee5ng y t\u1ebf v\u00e0 nghi\u00ean c\u1ee9u khoa h\u1ecdc.<\/p>\n

Ph\u01b0\u01a1ng ph\u00e1p h\u1ea5p th\u1ee5 b\u1ee9c x\u1ea1<\/h3>\n

Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y d\u1ef1a tr\u00ean vi\u1ec7c \u0111o l\u01b0\u1ee3ng n\u0103ng l\u01b0\u1ee3ng si\u00eau \u00e2m b\u1ecb h\u1ea5p th\u1ee5 b\u1edfi m\u1ed9t v\u1eadt li\u1ec7u h\u1ea5p th\u1ee5 \u0111\u1eb7c bi\u1ec7t. S\u1ef1 h\u1ea5p th\u1ee5 n\u0103ng l\u01b0\u1ee3ng n\u00e0y s\u1ebd l\u00e0m t\u0103ng nhi\u1ec7t \u0111\u1ed9 c\u1ee7a v\u1eadt li\u1ec7u, v\u00e0 c\u00f4ng su\u1ea5t si\u00eau \u00e2m \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n d\u1ef1a tr\u00ean s\u1ef1 thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9.<\/p>\n

So s\u00e1nh c\u00e1c ph\u01b0\u01a1ng ph\u00e1p \u0111o c\u00f4ng su\u1ea5t si\u00eau \u00e2m<\/h3>\n\n\n\n\n\n\n\n\n
Ph\u01b0\u01a1ng ph\u00e1p<\/th>\n\u01afu \u0111i\u1ec3m<\/th>\nNh\u01b0\u1ee3c \u0111i\u1ec3m<\/th>\n<\/tr>\n<\/thead>\n
C\u00e2n b\u1eb1ng l\u1ef1c<\/td>\n\u0110\u01a1n gi\u1ea3n, ch\u00ednh x\u00e1c t\u01b0\u01a1ng \u0111\u1ed1i<\/td>\nKh\u00f3 \u00e1p d\u1ee5ng v\u1edbi c\u00f4ng su\u1ea5t th\u1ea5p<\/td>\n<\/tr>\n
C\u00e2n b\u1eb1ng nhi\u1ec7t<\/td>\nPh\u1ed5 bi\u1ebfn, d\u1ec5 th\u1ef1c hi\u1ec7n<\/td>\n\u0110\u1ed9 ch\u00ednh x\u00e1c ph\u1ee5 thu\u1ed9c v\u00e0o m\u00f4i tr\u01b0\u1eddng<\/td>\n<\/tr>\n
Hydrophone<\/td>\n\u0110o tr\u1ef1c ti\u1ebfp c\u01b0\u1eddng \u0111\u1ed9 \u00e2m thanh<\/td>\nChi ph\u00ed cao, c\u1ea7n hi\u1ec7u chu\u1ea9n \u0111\u1ecbnh k\u1ef3<\/td>\n<\/tr>\n
H\u1ea5p th\u1ee5 b\u1ee9c x\u1ea1<\/td>\n\u0110\u1ed9 ch\u00ednh x\u00e1c cao<\/td>\nPh\u1ee9c t\u1ea1p, y\u00eau c\u1ea7u thi\u1ebft b\u1ecb chuy\u00ean d\u1ee5ng<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

L\u1ef1a ch\u1ecdn ph\u01b0\u01a1ng ph\u00e1p \u0111o ph\u00f9 h\u1ee3p<\/h3>\n

Vi\u1ec7c l\u1ef1a ch\u1ecdn ph\u01b0\u01a1ng ph\u00e1p \u0111o c\u00f4ng su\u1ea5t si\u00eau \u00e2m ph\u1ee5 thu\u1ed9c v\u00e0o nhi\u1ec1u y\u1ebfu t\u1ed1, bao g\u1ed3m d\u1ea3i t\u1ea7n s\u1ed1, m\u1ee9c c\u00f4ng su\u1ea5t, m\u00f4i tr\u01b0\u1eddng truy\u1ec1n s\u00f3ng v\u00e0 y\u00eau c\u1ea7u \u0111\u1ed9 ch\u00ednh x\u00e1c. \u0110\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p, ph\u01b0\u01a1ng ph\u00e1p c\u00e2n b\u1eb1ng nhi\u1ec7t th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng do t\u00ednh \u0111\u01a1n gi\u1ea3n v\u00e0 chi ph\u00ed th\u1ea5p. Trong khi \u0111\u00f3, c\u00e1c \u1ee9ng d\u1ee5ng y t\u1ebf v\u00e0 nghi\u00ean c\u1ee9u khoa h\u1ecdc th\u01b0\u1eddng y\u00eau c\u1ea7u \u0111\u1ed9 ch\u00ednh x\u00e1c cao h\u01a1n, n\u00ean ph\u01b0\u01a1ng ph\u00e1p hydrophone ho\u1eb7c h\u1ea5p th\u1ee5 b\u1ee9c x\u1ea1 s\u1ebd ph\u00f9 h\u1ee3p h\u01a1n.<\/p>\n

T\u00f3m l\u1ea1i, vi\u1ec7c \u0111o c\u00f4ng su\u1ea5t si\u00eau \u00e2m l\u00e0 m\u1ed9t b\u01b0\u1edbc quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u qu\u1ea3 v\u00e0 an to\u00e0n trong nhi\u1ec1u \u1ee9ng d\u1ee5ng. Vi\u1ec7c l\u1ef1a ch\u1ecdn ph\u01b0\u01a1ng ph\u00e1p \u0111o ph\u00f9 h\u1ee3p v\u00e0 th\u1ef1c hi\u1ec7n \u0111\u00fang quy tr\u00ecnh s\u1ebd gi\u00fap \u0111\u1ea1t \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 ch\u00ednh x\u00e1c v\u00e0 \u0111\u00e1ng tin c\u1eady. Hy v\u1ecdng b\u00e0i vi\u1ebft n\u00e0y \u0111\u00e3 cung c\u1ea5p nh\u1eefng th\u00f4ng tin h\u1eefu \u00edch v\u1ec1 c\u00e1ch \u0111o c\u00f4ng su\u1ea5t si\u00eau \u00e2m.<\/p>\n","protected":false},"excerpt":{"rendered":"

Vi\u1ec7c \u0111o c\u00f4ng su\u1ea5t si\u00eau \u00e2m \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong nhi\u1ec1u \u1ee9ng d\u1ee5ng, t\u1eeb y t\u1ebf v\u00e0 c\u00f4ng nghi\u1ec7p \u0111\u1ebfn nghi\u00ean c\u1ee9u khoa h\u1ecdc. Hi\u1ec3u r\u00f5 c\u00f4ng su\u1ea5t th\u1ef1c t\u1ebf c\u1ee7a thi\u1ebft b\u1ecb si\u00eau \u00e2m gi\u00fap t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t, \u0111\u1ea3m b\u1ea3o an to\u00e0n v\u00e0 ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng qu\u00e1 tr\u00ecnh. B\u00e0i<\/p>\n","protected":false},"author":1,"featured_media":42067,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6406],"tags":[],"class_list":["post-47444","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\/47444","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=47444"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts\/47444\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media\/42067"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media?parent=47444"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/categories?post=47444"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/tags?post=47444"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}