{"id":51580,"date":"2023-04-21T13:40:27","date_gmt":"2023-04-21T18:40:27","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/diy-ultrasonic-imaging\/"},"modified":"2025-01-21T07:09:58","modified_gmt":"2025-01-21T12:09:58","slug":"diy-ultrasonic-imaging","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/vi\/diy-ultrasonic-imaging\/","title":{"rendered":"Ch\u1ebf t\u1ea1o m\u00e1y si\u00eau \u00e2m h\u00ecnh \u1ea3nh DIY"},"content":{"rendered":"

Vi\u1ec7c t\u1ef1 ch\u1ebf t\u1ea1o m\u1ed9t h\u1ec7 th\u1ed1ng h\u00ecnh \u1ea3nh si\u00eau \u00e2m (DIY ultrasonic imaging) nghe c\u00f3 v\u1ebb ph\u1ee9c t\u1ea1p, nh\u01b0ng v\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a c\u00f4ng ngh\u1ec7 v\u00e0 ngu\u1ed3n t\u00e0i nguy\u00ean m\u1edf, vi\u1ec7c n\u00e0y \u0111ang tr\u1edf n\u00ean kh\u1ea3 thi h\u01a1n bao gi\u1edd h\u1ebft. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd h\u01b0\u1edbng d\u1eabn b\u1ea1n qua c\u00e1c kh\u00eda c\u1ea1nh quan tr\u1ecdng c\u1ee7a vi\u1ec7c x\u00e2y d\u1ef1ng m\u1ed9t h\u1ec7 th\u1ed1ng h\u00ecnh \u1ea3nh si\u00eau \u00e2m DIY, t\u1eeb vi\u1ec7c l\u1ef1a ch\u1ecdn linh ki\u1ec7n \u0111\u1ebfn vi\u1ec7c x\u1eed l\u00fd t\u00edn hi\u1ec7u v\u00e0 hi\u1ec3n th\u1ecb h\u00ecnh \u1ea3nh.<\/p>\n

Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a h\u00ecnh \u1ea3nh si\u00eau \u00e2m<\/h3>\n

H\u00ecnh \u1ea3nh si\u00eau \u00e2m ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean nguy\u00ean l\u00fd s\u00f3ng \u00e2m ph\u1ea3n x\u1ea1. \u0110\u1ea7u d\u00f2 si\u00eau \u00e2m ph\u00e1t ra c\u00e1c s\u00f3ng \u00e2m t\u1ea7n s\u1ed1 cao, c\u00e1c s\u00f3ng n\u00e0y truy\u1ec1n qua m\u00f4i tr\u01b0\u1eddng v\u00e0 ph\u1ea3n x\u1ea1 l\u1ea1i khi g\u1eb7p b\u1ec1 m\u1eb7t ph\u00e2n c\u00e1ch gi\u1eefa c\u00e1c m\u00f4 c\u00f3 m\u1eadt \u0111\u1ed9 kh\u00e1c nhau. \u0110\u1ea7u d\u00f2 sau \u0111\u00f3 thu nh\u1eadn c\u00e1c s\u00f3ng ph\u1ea3n x\u1ea1 n\u00e0y v\u00e0 chuy\u1ec3n \u0111\u1ed5i ch\u00fang th\u00e0nh t\u00edn hi\u1ec7u \u0111i\u1ec7n. T\u00edn hi\u1ec7u \u0111i\u1ec7n n\u00e0y \u0111\u01b0\u1ee3c x\u1eed l\u00fd \u0111\u1ec3 t\u1ea1o ra h\u00ecnh \u1ea3nh tr\u00ean m\u00e0n h\u00ecnh.<\/p>\n

Linh ki\u1ec7n c\u1ea7n thi\u1ebft<\/h3>\n

\u0110\u1ec3 x\u00e2y d\u1ef1ng m\u1ed9t h\u1ec7 th\u1ed1ng h\u00ecnh \u1ea3nh si\u00eau \u00e2m DIY, b\u1ea1n s\u1ebd c\u1ea7n c\u00e1c linh ki\u1ec7n sau:<\/p>\n\n\n\n\n\n\n\n\n\n\n
Linh ki\u1ec7n<\/th>\nM\u00f4 t\u1ea3<\/th>\n<\/tr>\n<\/thead>\n
\u0110\u1ea7u d\u00f2 si\u00eau \u00e2m<\/td>\nTh\u00e0nh ph\u1ea7n quan tr\u1ecdng nh\u1ea5t, ph\u00e1t v\u00e0 thu s\u00f3ng si\u00eau \u00e2m.<\/td>\n<\/tr>\n
B\u1ed9 \u0111i\u1ec1u khi\u1ec3n vi x\u1eed l\u00fd (MCU)<\/td>\n\u0110i\u1ec1u khi\u1ec3n ho\u1ea1t \u0111\u1ed9ng c\u1ee7a to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng.<\/td>\n<\/tr>\n
B\u1ed9 khu\u1ebfch \u0111\u1ea1i t\u00edn hi\u1ec7u<\/td>\nKhu\u1ebfch \u0111\u1ea1i t\u00edn hi\u1ec7u y\u1ebfu nh\u1eadn \u0111\u01b0\u1ee3c t\u1eeb \u0111\u1ea7u d\u00f2.<\/td>\n<\/tr>\n
B\u1ed9 chuy\u1ec3n \u0111\u1ed5i analog sang digital (ADC)<\/td>\nChuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u analog th\u00e0nh digital \u0111\u1ec3 x\u1eed l\u00fd tr\u00ean MCU.<\/td>\n<\/tr>\n
M\u00e0n h\u00ecnh hi\u1ec3n th\u1ecb<\/td>\nHi\u1ec3n th\u1ecb h\u00ecnh \u1ea3nh si\u00eau \u00e2m.<\/td>\n<\/tr>\n
Ngu\u1ed3n \u0111i\u1ec7n<\/td>\nCung c\u1ea5p n\u0103ng l\u01b0\u1ee3ng cho to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

L\u1ef1a ch\u1ecdn \u0111\u1ea7u d\u00f2 si\u00eau \u00e2m<\/h3>\n

Vi\u1ec7c l\u1ef1a ch\u1ecdn \u0111\u1ea7u d\u00f2 si\u00eau \u00e2m ph\u00f9 h\u1ee3p r\u1ea5t quan tr\u1ecdng. T\u1ea7n s\u1ed1 c\u1ee7a \u0111\u1ea7u d\u00f2 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 ph\u00e2n gi\u1ea3i v\u00e0 \u0111\u1ed9 s\u00e2u xuy\u00ean th\u1ea5u c\u1ee7a s\u00f3ng si\u00eau \u00e2m. T\u1ea7n s\u1ed1 cao cho \u0111\u1ed9 ph\u00e2n gi\u1ea3i t\u1ed1t h\u01a1n nh\u01b0ng \u0111\u1ed9 xuy\u00ean th\u1ea5u k\u00e9m h\u01a1n, v\u00e0 ng\u01b0\u1ee3c l\u1ea1i.<\/p>\n

X\u1eed l\u00fd t\u00edn hi\u1ec7u<\/h3>\n

Sau khi t\u00edn hi\u1ec7u \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ed5i sang d\u1ea1ng digital, MCU s\u1ebd x\u1eed l\u00fd t\u00edn hi\u1ec7u \u0111\u1ec3 lo\u1ea1i b\u1ecf nhi\u1ec5u v\u00e0 t\u1ea1o ra h\u00ecnh \u1ea3nh. C\u00e1c thu\u1eadt to\u00e1n x\u1eed l\u00fd t\u00edn hi\u1ec7u bao g\u1ed3m l\u1ecdc nhi\u1ec5u, khu\u1ebfch \u0111\u1ea1i t\u00edn hi\u1ec7u, v\u00e0 t\u1ea1o h\u00ecnh \u1ea3nh.<\/p>\n

Hi\u1ec3n th\u1ecb h\u00ecnh \u1ea3nh<\/h3>\n

H\u00ecnh \u1ea3nh si\u00eau \u00e2m \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb tr\u00ean m\u00e0n h\u00ecnh. Vi\u1ec7c l\u1ef1a ch\u1ecdn m\u00e0n h\u00ecnh ph\u00f9 h\u1ee3p c\u0169ng quan tr\u1ecdng, c\u1ea7n \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ph\u00e2n gi\u1ea3i v\u00e0 t\u1ed1c \u0111\u1ed9 l\u00e0m t\u01b0\u01a1i \u0111\u1ee7 \u0111\u1ec3 hi\u1ec3n th\u1ecb h\u00ecnh \u1ea3nh r\u00f5 n\u00e9t.<\/p>\n

Kh\u00f3 kh\u0103n v\u00e0 h\u1ea1n ch\u1ebf<\/h3>\n

X\u00e2y d\u1ef1ng m\u1ed9t h\u1ec7 th\u1ed1ng h\u00ecnh \u1ea3nh si\u00eau \u00e2m DIY c\u00f3 nh\u1eefng kh\u00f3 kh\u0103n v\u00e0 h\u1ea1n ch\u1ebf nh\u1ea5t \u0111\u1ecbnh. Vi\u1ec7c x\u1eed l\u00fd t\u00edn hi\u1ec7u v\u00e0 hi\u1ec7u ch\u1ec9nh h\u1ec7 th\u1ed1ng \u0111\u00f2i h\u1ecfi ki\u1ebfn th\u1ee9c chuy\u00ean m\u00f4n v\u00e0 kinh nghi\u1ec7m. Ch\u1ea5t l\u01b0\u1ee3ng h\u00ecnh \u1ea3nh c\u00f3 th\u1ec3 kh\u00f4ng cao b\u1eb1ng c\u00e1c h\u1ec7 th\u1ed1ng th\u01b0\u01a1ng m\u1ea1i.<\/p>\n

C\u00e1c \u1ee9ng d\u1ee5ng ti\u1ec1m n\u0103ng<\/h3>\n

M\u1eb7c d\u00f9 c\u00f3 nh\u1eefng h\u1ea1n ch\u1ebf, h\u1ec7 th\u1ed1ng h\u00ecnh \u1ea3nh si\u00eau \u00e2m DIY c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng trong nhi\u1ec1u l\u0129nh v\u1ef1c, v\u00ed d\u1ee5 nh\u01b0 gi\u00e1o d\u1ee5c, nghi\u00ean c\u1ee9u, v\u00e0 c\u00e1c d\u1ef1 \u00e1n c\u00e1 nh\u00e2n. \u0110\u00e2y l\u00e0 m\u1ed9t c\u00e1ch tuy\u1ec7t v\u1eddi \u0111\u1ec3 t\u00ecm hi\u1ec3u v\u1ec1 c\u00f4ng ngh\u1ec7 si\u00eau \u00e2m v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a n\u00f3.<\/p>\n

Vi\u1ec7c t\u1ef1 ch\u1ebf t\u1ea1o h\u1ec7 th\u1ed1ng h\u00ecnh \u1ea3nh si\u00eau \u00e2m DIY l\u00e0 m\u1ed9t d\u1ef1 \u00e1n th\u00fa v\u1ecb v\u00e0 \u0111\u1ea7y th\u00e1ch th\u1ee9c. Hy v\u1ecdng b\u00e0i vi\u1ebft n\u00e0y \u0111\u00e3 cung c\u1ea5p cho b\u1ea1n nh\u1eefng ki\u1ebfn th\u1ee9c c\u01a1 b\u1ea3n v\u00e0 h\u1eefu \u00edch \u0111\u1ec3 b\u1eaft \u0111\u1ea7u h\u00e0nh tr\u00ecnh kh\u00e1m ph\u00e1 th\u1ebf gi\u1edbi h\u00ecnh \u1ea3nh si\u00eau \u00e2m. V\u1edbi s\u1ef1 ki\u00ean tr\u00ec v\u00e0 t\u00ecm t\u00f2i, b\u1ea1n ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 x\u00e2y d\u1ef1ng \u0111\u01b0\u1ee3c m\u1ed9t h\u1ec7 th\u1ed1ng h\u00ecnh \u1ea3nh si\u00eau \u00e2m ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3.<\/p>\n","protected":false},"excerpt":{"rendered":"

Vi\u1ec7c t\u1ef1 ch\u1ebf t\u1ea1o m\u1ed9t h\u1ec7 th\u1ed1ng h\u00ecnh \u1ea3nh si\u00eau \u00e2m (DIY ultrasonic imaging) nghe c\u00f3 v\u1ebb ph\u1ee9c t\u1ea1p, nh\u01b0ng v\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a c\u00f4ng ngh\u1ec7 v\u00e0 ngu\u1ed3n t\u00e0i nguy\u00ean m\u1edf, vi\u1ec7c n\u00e0y \u0111ang tr\u1edf n\u00ean kh\u1ea3 thi h\u01a1n bao gi\u1edd h\u1ebft. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd h\u01b0\u1edbng d\u1eabn b\u1ea1n qua c\u00e1c kh\u00eda c\u1ea1nh quan<\/p>\n","protected":false},"author":1,"featured_media":26485,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6406],"tags":[],"class_list":["post-51580","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\/51580","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=51580"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts\/51580\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media\/26485"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media?parent=51580"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/categories?post=51580"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/tags?post=51580"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}