{"id":46204,"date":"2023-04-22T01:29:40","date_gmt":"2023-04-22T06:29:40","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/how-to-use-piezo-sensor\/"},"modified":"2025-01-21T07:23:38","modified_gmt":"2025-01-21T12:23:38","slug":"how-to-use-piezo-sensor","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/vi\/how-to-use-piezo-sensor\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn s\u1eed d\u1ee5ng c\u1ea3m bi\u1ebfn piezo hi\u1ec7u qu\u1ea3"},"content":{"rendered":"

C\u1ea3m bi\u1ebfn piezo, hay c\u00f2n g\u1ecdi l\u00e0 c\u1ea3m bi\u1ebfn \u00e1p \u0111i\u1ec7n, l\u00e0 m\u1ed9t lo\u1ea1i c\u1ea3m bi\u1ebfn chuy\u1ec3n \u0111\u1ed5i \u00e1p l\u1ef1c c\u01a1 h\u1ecdc th\u00e0nh t\u00edn hi\u1ec7u \u0111i\u1ec7n. Ch\u00fang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u \u1ee9ng d\u1ee5ng, t\u1eeb microphone v\u00e0 guitar acoustic \u0111\u1ebfn c\u00e1c h\u1ec7 th\u1ed1ng b\u00e1o \u0111\u1ed9ng v\u00e0 c\u1ea3m bi\u1ebfn va ch\u1ea1m trong \u00f4 t\u00f4. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd h\u01b0\u1edbng d\u1eabn chi ti\u1ebft c\u00e1ch s\u1eed d\u1ee5ng c\u1ea3m bi\u1ebfn piezo trong c\u00e1c d\u1ef1 \u00e1n \u0111i\u1ec7n t\u1eed.<\/p>\n

Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u1ea3m bi\u1ebfn Piezo<\/h3>\n

C\u1ea3m bi\u1ebfn piezo ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean hi\u1ec7u \u1ee9ng \u00e1p \u0111i\u1ec7n. Hi\u1ec7u \u1ee9ng n\u00e0y m\u00f4 t\u1ea3 kh\u1ea3 n\u0103ng c\u1ee7a m\u1ed9t s\u1ed1 v\u1eadt li\u1ec7u t\u1ea1o ra \u0111i\u1ec7n \u00e1p khi ch\u1ecbu \u00e1p l\u1ef1c c\u01a1 h\u1ecdc v\u00e0 ng\u01b0\u1ee3c l\u1ea1i, thay \u0111\u1ed5i h\u00ecnh d\u1ea1ng khi \u0111\u1eb7t d\u01b0\u1edbi \u0111i\u1ec7n \u00e1p. Khi m\u1ed9t l\u1ef1c t\u00e1c \u0111\u1ed9ng l\u00ean c\u1ea3m bi\u1ebfn piezo, n\u00f3 t\u1ea1o ra m\u1ed9t \u0111i\u1ec7n t\u00edch t\u1ef7 l\u1ec7 v\u1edbi l\u1ef1c t\u00e1c \u0111\u1ed9ng. \u0110i\u1ec7n t\u00edch n\u00e0y sau \u0111\u00f3 \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ed5i th\u00e0nh \u0111i\u1ec7n \u00e1p, c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111o v\u00e0 x\u1eed l\u00fd b\u1edfi m\u1ed9t m\u1ea1ch \u0111i\u1ec7n t\u1eed.<\/p>\n

Ch\u1ecdn lo\u1ea1i c\u1ea3m bi\u1ebfn Piezo ph\u00f9 h\u1ee3p<\/h3>\n

C\u00f3 nhi\u1ec1u lo\u1ea1i c\u1ea3m bi\u1ebfn piezo kh\u00e1c nhau tr\u00ean th\u1ecb tr\u01b0\u1eddng, m\u1ed7i lo\u1ea1i c\u00f3 \u0111\u1eb7c t\u00ednh v\u00e0 \u1ee9ng d\u1ee5ng ri\u00eang. Vi\u1ec7c l\u1ef1a ch\u1ecdn c\u1ea3m bi\u1ebfn ph\u00f9 h\u1ee3p ph\u1ee5 thu\u1ed9c v\u00e0o \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3. M\u1ed9t s\u1ed1 y\u1ebfu t\u1ed1 c\u1ea7n xem x\u00e9t bao g\u1ed3m d\u1ea3i t\u1ea7n s\u1ed1, \u0111\u1ed9 nh\u1ea1y, k\u00edch th\u01b0\u1edbc v\u00e0 h\u00ecnh d\u1ea1ng c\u1ee7a c\u1ea3m bi\u1ebfn.<\/p>\n\n\n\n\n\n\n\n\n
\u0110\u1eb7c t\u00ednh<\/th>\nM\u00f4 t\u1ea3<\/th>\n<\/tr>\n<\/thead>\n
D\u1ea3i t\u1ea7n s\u1ed1<\/td>\nKho\u1ea3ng t\u1ea7n s\u1ed1 m\u00e0 c\u1ea3m bi\u1ebfn c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3<\/td>\n<\/tr>\n
\u0110\u1ed9 nh\u1ea1y<\/td>\n\u0110i\u1ec7n \u00e1p \u0111\u1ea7u ra tr\u00ean m\u1ed9t \u0111\u01a1n v\u1ecb l\u1ef1c t\u00e1c \u0111\u1ed9ng<\/td>\n<\/tr>\n
K\u00edch th\u01b0\u1edbc<\/td>\nK\u00edch th\u01b0\u1edbc v\u1eadt l\u00fd c\u1ee7a c\u1ea3m bi\u1ebfn<\/td>\n<\/tr>\n
H\u00ecnh d\u1ea1ng<\/td>\nH\u00ecnh d\u1ea1ng c\u1ee7a c\u1ea3m bi\u1ebfn, v\u00ed d\u1ee5: \u0111\u0129a, h\u00ecnh tr\u1ee5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

K\u1ebft n\u1ed1i c\u1ea3m bi\u1ebfn Piezo v\u1edbi m\u1ea1ch \u0111i\u1ec7n<\/h3>\n

Vi\u1ec7c k\u1ebft n\u1ed1i c\u1ea3m bi\u1ebfn piezo v\u1edbi m\u1ea1ch \u0111i\u1ec7n t\u01b0\u01a1ng \u0111\u1ed1i \u0111\u01a1n gi\u1ea3n. \u0110\u1ea7u ra c\u1ee7a c\u1ea3m bi\u1ebfn \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi m\u1ed9t m\u1ea1ch khu\u1ebfch \u0111\u1ea1i \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng t\u00edn hi\u1ec7u y\u1ebfu. Sau \u0111\u00f3, t\u00edn hi\u1ec7u \u0111\u01b0\u1ee3c x\u1eed l\u00fd b\u1edfi m\u1ed9t vi \u0111i\u1ec1u khi\u1ec3n ho\u1eb7c m\u1ed9t m\u1ea1ch \u0111i\u1ec7n t\u1eed kh\u00e1c. M\u1ed9t \u0111i\u1ec7n tr\u1edf t\u1ea3i \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i d\u00f2ng \u0111i\u1ec7n th\u00e0nh \u0111i\u1ec7n \u00e1p.<\/p>\n\n\n\n\n\n\n\n\n
Th\u00e0nh ph\u1ea7n<\/th>\nCh\u1ee9c n\u0103ng<\/th>\n<\/tr>\n<\/thead>\n
C\u1ea3m bi\u1ebfn Piezo<\/td>\nChuy\u1ec3n \u0111\u1ed5i \u00e1p l\u1ef1c th\u00e0nh t\u00edn hi\u1ec7u \u0111i\u1ec7n<\/td>\n<\/tr>\n
\u0110i\u1ec7n tr\u1edf t\u1ea3i<\/td>\nChuy\u1ec3n \u0111\u1ed5i d\u00f2ng \u0111i\u1ec7n th\u00e0nh \u0111i\u1ec7n \u00e1p<\/td>\n<\/tr>\n
M\u1ea1ch khu\u1ebfch \u0111\u1ea1i<\/td>\nKhu\u1ebfch \u0111\u1ea1i t\u00edn hi\u1ec7u y\u1ebfu<\/td>\n<\/tr>\n
Vi \u0111i\u1ec1u khi\u1ec3n<\/td>\nX\u1eed l\u00fd t\u00edn hi\u1ec7u<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

X\u1eed l\u00fd t\u00edn hi\u1ec7u t\u1eeb c\u1ea3m bi\u1ebfn Piezo<\/h3>\n

T\u00edn hi\u1ec7u t\u1eeb c\u1ea3m bi\u1ebfn piezo th\u01b0\u1eddng y\u1ebfu v\u00e0 c\u1ea7n \u0111\u01b0\u1ee3c khu\u1ebfch \u0111\u1ea1i tr\u01b0\u1edbc khi x\u1eed l\u00fd. C\u00f3 nhi\u1ec1u lo\u1ea1i m\u1ea1ch khu\u1ebfch \u0111\u1ea1i kh\u00e1c nhau c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng, t\u00f9y thu\u1ed9c v\u00e0o \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3. Sau khi khu\u1ebfch \u0111\u1ea1i, t\u00edn hi\u1ec7u c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u1ecdc \u0111\u1ec3 lo\u1ea1i b\u1ecf nhi\u1ec5u v\u00e0 sau \u0111\u00f3 \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ed5i th\u00e0nh d\u1ea1ng k\u1ef9 thu\u1eadt s\u1ed1 \u0111\u1ec3 x\u1eed l\u00fd b\u1edfi vi \u0111i\u1ec1u khi\u1ec3n.<\/p>\n

\u1ee8ng d\u1ee5ng c\u1ee7a c\u1ea3m bi\u1ebfn Piezo<\/h3>\n

C\u1ea3m bi\u1ebfn piezo \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong r\u1ea5t nhi\u1ec1u \u1ee9ng d\u1ee5ng, bao g\u1ed3m:<\/p>\n

    \n
  • Microphone<\/li>\n
  • Loa<\/li>\n
  • \u0110\u1ea7u d\u00f2 si\u00eau \u00e2m (v\u00ed d\u1ee5 trong y t\u1ebf)<\/li>\n
  • C\u1ea3m bi\u1ebfn va ch\u1ea1m<\/li>\n
  • C\u1ea3m bi\u1ebfn \u00e1p su\u1ea5t<\/li>\n
  • \u0110\u00e1nh l\u1eeda trong b\u1eadt l\u1eeda<\/li>\n<\/ul>\n

    Vi\u1ec7c s\u1eed d\u1ee5ng c\u1ea3m bi\u1ebfn piezo \u0111\u00f2i h\u1ecfi s\u1ef1 hi\u1ec3u bi\u1ebft v\u1ec1 nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng v\u00e0 c\u00e1c \u0111\u1eb7c t\u00ednh c\u1ee7a n\u00f3. B\u1eb1ng c\u00e1ch ch\u1ecdn \u0111\u00fang lo\u1ea1i c\u1ea3m bi\u1ebfn v\u00e0 k\u1ebft n\u1ed1i n\u00f3 \u0111\u00fang c\u00e1ch v\u1edbi m\u1ea1ch \u0111i\u1ec7n, b\u1ea1n c\u00f3 th\u1ec3 t\u1eadn d\u1ee5ng hi\u1ec7u qu\u1ea3 c\u1ee7a c\u1ea3m bi\u1ebfn piezo trong nhi\u1ec1u \u1ee9ng d\u1ee5ng kh\u00e1c nhau. 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\u1ec1 c\u00e1ch s\u1eed d\u1ee5ng c\u1ea3m bi\u1ebfn piezo.<\/p>\n","protected":false},"excerpt":{"rendered":"

    C\u1ea3m bi\u1ebfn piezo, hay c\u00f2n g\u1ecdi l\u00e0 c\u1ea3m bi\u1ebfn \u00e1p \u0111i\u1ec7n, l\u00e0 m\u1ed9t lo\u1ea1i c\u1ea3m bi\u1ebfn chuy\u1ec3n \u0111\u1ed5i \u00e1p l\u1ef1c c\u01a1 h\u1ecdc th\u00e0nh t\u00edn hi\u1ec7u \u0111i\u1ec7n. Ch\u00fang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u \u1ee9ng d\u1ee5ng, t\u1eeb microphone v\u00e0 guitar acoustic \u0111\u1ebfn c\u00e1c h\u1ec7 th\u1ed1ng b\u00e1o \u0111\u1ed9ng v\u00e0 c\u1ea3m bi\u1ebfn va ch\u1ea1m trong \u00f4 t\u00f4.<\/p>\n","protected":false},"author":1,"featured_media":26463,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6406],"tags":[],"class_list":["post-46204","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\/46204","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=46204"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts\/46204\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media\/26463"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media?parent=46204"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/categories?post=46204"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/tags?post=46204"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}