{"id":52292,"date":"2023-04-21T12:57:56","date_gmt":"2023-04-21T17:57:56","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/diy-hydrophone-piezo\/"},"modified":"2025-01-21T07:08:26","modified_gmt":"2025-01-21T12:08:26","slug":"diy-hydrophone-piezo","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/vi\/diy-hydrophone-piezo\/","title":{"rendered":"T\u1ef1 ch\u1ebf th\u1ee7y \u00e2m k\u1ebf piezo \u0111\u01a1n gi\u1ea3n v\u00e0 hi\u1ec7u qu\u1ea3"},"content":{"rendered":"

Vi\u1ec7c t\u1ef1 ch\u1ebf t\u1ea1o hydrophone piezo l\u00e0 m\u1ed9t d\u1ef1 \u00e1n th\u00fa v\u1ecb v\u00e0 \u0111\u1ea7y t\u00ednh gi\u00e1o d\u1ee5c, cho ph\u00e9p b\u1ea1n kh\u00e1m ph\u00e1 th\u1ebf gi\u1edbi \u00e2m thanh d\u01b0\u1edbi n\u01b0\u1edbc. T\u1eeb nh\u1eefng v\u1eadt li\u1ec7u \u0111\u01a1n gi\u1ea3n v\u00e0 d\u1ec5 t\u00ecm, b\u1ea1n c\u00f3 th\u1ec3 t\u1ea1o ra m\u1ed9t thi\u1ebft b\u1ecb c\u00f3 kh\u1ea3 n\u0103ng thu \u00e2m thanh d\u01b0\u1edbi n\u01b0\u1edbc m\u1ed9t c\u00e1ch \u0111\u00e1ng kinh ng\u1ea1c. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd h\u01b0\u1edbng d\u1eabn b\u1ea1n t\u1eebng b\u01b0\u1edbc \u0111\u1ec3 t\u1ef1 tay ch\u1ebf t\u1ea1o m\u1ed9t hydrophone piezo \u0111\u01a1n gi\u1ea3n nh\u01b0ng hi\u1ec7u qu\u1ea3.<\/p>\n

Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a hydrophone piezo<\/h3>\n

Hydrophone piezo ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean hi\u1ec7u \u1ee9ng \u00e1p \u0111i\u1ec7n. Khi m\u1ed9t v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n nh\u01b0 g\u1ed1m piezo b\u1ecb t\u00e1c \u0111\u1ed9ng b\u1edfi \u00e1p su\u1ea5t \u00e2m thanh, n\u00f3 s\u1ebd t\u1ea1o ra m\u1ed9t \u0111i\u1ec7n \u00e1p. \u0110i\u1ec7n \u00e1p n\u00e0y sau \u0111\u00f3 \u0111\u01b0\u1ee3c khu\u1ebfch \u0111\u1ea1i v\u00e0 chuy\u1ec3n \u0111\u1ed5i th\u00e0nh t\u00edn hi\u1ec7u \u00e2m thanh m\u00e0 ch\u00fang ta c\u00f3 th\u1ec3 nghe \u0111\u01b0\u1ee3c.<\/p>\n

V\u1eadt li\u1ec7u c\u1ea7n chu\u1ea9n b\u1ecb<\/h3>\n

\u0110\u1ec3 ch\u1ebf t\u1ea1o hydrophone piezo, b\u1ea1n c\u1ea7n chu\u1ea9n b\u1ecb nh\u1eefng v\u1eadt li\u1ec7u sau:<\/p>\n\n\n\n\n\n\n\n\n\n\n
V\u1eadt li\u1ec7u<\/th>\nM\u00f4 t\u1ea3<\/th>\n<\/tr>\n<\/thead>\n
\u0110\u0129a g\u1ed1m piezo<\/td>\n\u0110\u01b0\u1eddng k\u00ednh 20-27mm<\/td>\n<\/tr>\n
D\u00e2y \u0111\u1ed3ng b\u1ecdc<\/td>\nD\u00e0i kho\u1ea3ng 1 m\u00e9t<\/td>\n<\/tr>\n
\u1ed0ng nh\u1ef1a PVC<\/td>\n\u0110\u01b0\u1eddng k\u00ednh ph\u00f9 h\u1ee3p v\u1edbi \u0111\u0129a piezo<\/td>\n<\/tr>\n
Keo epoxy ch\u1ed1ng n\u01b0\u1edbc<\/td>\n<\/td>\n<\/tr>\n
Gi\u1eafc c\u1eafm \u00e2m thanh 3.5mm<\/td>\n<\/td>\n<\/tr>\n
V\u1ecf h\u1ed9p ch\u1ed1ng n\u01b0\u1edbc (t\u00f9y ch\u1ecdn)<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

C\u00e1c b\u01b0\u1edbc th\u1ef1c hi\u1ec7n<\/h3>\n
    \n
  1. H\u00e0n d\u00e2y<\/strong>: H\u00e0n hai \u0111\u1ea7u d\u00e2y \u0111\u1ed3ng v\u00e0o hai m\u1eb7t c\u1ee7a \u0111\u0129a g\u1ed1m piezo. C\u1ea9n th\u1eadn kh\u00f4ng l\u00e0m n\u00f3ng qu\u00e1 m\u1ee9c \u0111\u0129a piezo.<\/li>\n
  2. C\u00e1ch \u0111i\u1ec7n<\/strong>: D\u00f9ng keo epoxy ch\u1ed1ng n\u01b0\u1edbc ph\u1ee7 k\u00edn to\u00e0n b\u1ed9 \u0111\u0129a piezo v\u00e0 m\u1ed1i h\u00e0n, \u0111\u1ea3m b\u1ea3o kh\u00f4ng \u0111\u1ec3 n\u01b0\u1edbc l\u1ecdt v\u00e0o.<\/li>\n
  3. L\u1eafp r\u00e1p<\/strong>: \u0110\u1eb7t \u0111\u0129a piezo \u0111\u00e3 \u0111\u01b0\u1ee3c c\u00e1ch \u0111i\u1ec7n v\u00e0o trong \u1ed1ng nh\u1ef1a PVC. C\u1ed1 \u0111\u1ecbnh \u0111\u0129a piezo b\u1eb1ng keo epoxy. \u0110\u1ea3m b\u1ea3o ph\u1ea7n \u0111\u1ea7u d\u00e2y \u0111\u1ed3ng \u0111\u01b0\u1ee3c lu\u1ed3n ra ngo\u00e0i.<\/li>\n
  4. K\u1ebft n\u1ed1i gi\u1eafc c\u1eafm<\/strong>: N\u1ed1i hai \u0111\u1ea7u d\u00e2y \u0111\u1ed3ng v\u1edbi gi\u1eafc c\u1eafm \u00e2m thanh 3.5mm. L\u01b0u \u00fd \u0111\u00fang c\u1ef1c \u00e2m d\u01b0\u01a1ng.<\/li>\n
  5. Ki\u1ec3m tra (t\u00f9y ch\u1ecdn)<\/strong>: N\u1ebfu c\u00f3 v\u1ecf h\u1ed9p ch\u1ed1ng n\u01b0\u1edbc, h\u00e3y \u0111\u1eb7t to\u00e0n b\u1ed9 m\u1ea1ch v\u00e0o trong v\u1ecf h\u1ed9p v\u00e0 b\u1ecbt k\u00edn.<\/li>\n<\/ol>\n

    Khu\u1ebfch \u0111\u1ea1i t\u00edn hi\u1ec7u (t\u00f9y ch\u1ecdn)<\/h3>\n

    T\u00edn hi\u1ec7u t\u1eeb hydrophone piezo th\u01b0\u1eddng kh\u00e1 y\u1ebfu. B\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng m\u1ed9t b\u1ed9 khu\u1ebfch \u0111\u1ea1i \u00e2m thanh \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng t\u00edn hi\u1ec7u tr\u01b0\u1edbc khi nghe qua tai nghe ho\u1eb7c loa. Vi\u1ec7c n\u00e0y s\u1ebd gi\u00fap c\u1ea3i thi\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng \u00e2m thanh \u0111\u00e1ng k\u1ec3.<\/p>\n

    Ki\u1ec3m tra hydrophone<\/h3>\n

    Sau khi ho\u00e0n th\u00e0nh, b\u1ea1n c\u00f3 th\u1ec3 ki\u1ec3m tra hydrophone b\u1eb1ng c\u00e1ch nh\u00fang n\u00f3 v\u00e0o n\u01b0\u1edbc v\u00e0 l\u1eafng nghe \u00e2m thanh. H\u00e3y th\u1eed g\u00f5 nh\u1eb9 v\u00e0o th\u00e0nh b\u1ec3 n\u01b0\u1edbc ho\u1eb7c t\u1ea1o ra c\u00e1c \u00e2m thanh kh\u00e1c d\u01b0\u1edbi n\u01b0\u1edbc \u0111\u1ec3 ki\u1ec3m tra \u0111\u1ed9 nh\u1ea1y c\u1ee7a hydrophone.<\/p>\n

    Vi\u1ec7c t\u1ef1 ch\u1ebf hydrophone piezo kh\u00f4ng ch\u1ec9 mang l\u1ea1i cho b\u1ea1n m\u1ed9t thi\u1ebft b\u1ecb h\u1eefu \u00edch m\u00e0 c\u00f2n gi\u00fap b\u1ea1n hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 nguy\u00ean l\u00fd \u00e1p \u0111i\u1ec7n v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a n\u00f3 trong th\u1ef1c t\u1ebf. Hy v\u1ecdng b\u00e0i vi\u1ebft n\u00e0y \u0111\u00e3 cung c\u1ea5p cho b\u1ea1n nh\u1eefng th\u00f4ng tin c\u1ea7n thi\u1ebft \u0111\u1ec3 b\u1eaft \u0111\u1ea7u h\u00e0nh tr\u00ecnh kh\u00e1m ph\u00e1 th\u1ebf gi\u1edbi \u00e2m thanh d\u01b0\u1edbi n\u01b0\u1edbc.<\/p>\n","protected":false},"excerpt":{"rendered":"

    Vi\u1ec7c t\u1ef1 ch\u1ebf t\u1ea1o hydrophone piezo l\u00e0 m\u1ed9t d\u1ef1 \u00e1n th\u00fa v\u1ecb v\u00e0 \u0111\u1ea7y t\u00ednh gi\u00e1o d\u1ee5c, cho ph\u00e9p b\u1ea1n kh\u00e1m ph\u00e1 th\u1ebf gi\u1edbi \u00e2m thanh d\u01b0\u1edbi n\u01b0\u1edbc. T\u1eeb nh\u1eefng v\u1eadt li\u1ec7u \u0111\u01a1n gi\u1ea3n v\u00e0 d\u1ec5 t\u00ecm, b\u1ea1n c\u00f3 th\u1ec3 t\u1ea1o ra m\u1ed9t thi\u1ebft b\u1ecb c\u00f3 kh\u1ea3 n\u0103ng thu \u00e2m thanh d\u01b0\u1edbi n\u01b0\u1edbc m\u1ed9t c\u00e1ch<\/p>\n","protected":false},"author":1,"featured_media":26481,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6406],"tags":[],"class_list":["post-52292","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\/52292","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=52292"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts\/52292\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media\/26481"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media?parent=52292"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/categories?post=52292"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/tags?post=52292"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}