{"id":49084,"date":"2023-04-21T22:42:51","date_gmt":"2023-04-22T03:42:51","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/how-to-make-a-high-frequency-generator\/"},"modified":"2025-01-21T07:16:55","modified_gmt":"2025-01-21T12:16:55","slug":"how-to-make-a-high-frequency-generator","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/vi\/how-to-make-a-high-frequency-generator\/","title":{"rendered":"Ch\u1ebf t\u1ea1o m\u00e1y ph\u00e1t cao t\u1ea7n: H\u01b0\u1edbng d\u1eabn chi ti\u1ebft"},"content":{"rendered":"

Vi\u1ec7c t\u1ea1o ra m\u1ed9t m\u00e1y ph\u00e1t cao t\u1ea7n \u0111\u00f2i h\u1ecfi ki\u1ebfn th\u1ee9c v\u1ec1 \u0111i\u1ec7n t\u1eed v\u00e0 s\u1ef1 t\u1ec9 m\u1ec9 trong qu\u00e1 tr\u00ecnh l\u1eafp r\u00e1p. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd h\u01b0\u1edbng d\u1eabn chi ti\u1ebft c\u00e1ch ch\u1ebf t\u1ea1o m\u1ed9t m\u00e1y ph\u00e1t cao t\u1ea7n \u0111\u01a1n gi\u1ea3n, ph\u00f9 h\u1ee3p cho nh\u1eefng ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u t\u00ecm hi\u1ec3u v\u1ec1 l\u0129nh v\u1ef1c n\u00e0y. Ch\u00fang ta s\u1ebd c\u00f9ng t\u00ecm hi\u1ec3u nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng, c\u00e1c linh ki\u1ec7n c\u1ea7n thi\u1ebft v\u00e0 c\u00e1c b\u01b0\u1edbc th\u1ef1c hi\u1ec7n c\u1ee5 th\u1ec3.<\/p>\n

Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a m\u00e1y ph\u00e1t cao t\u1ea7n<\/h3>\n

M\u00e1y ph\u00e1t cao t\u1ea7n ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean nguy\u00ean l\u00fd t\u1ea1o ra dao \u0111\u1ed9ng \u0111i\u1ec7n \u1edf t\u1ea7n s\u1ed1 cao. Dao \u0111\u1ed9ng n\u00e0y \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1edfi m\u1ea1ch dao \u0111\u1ed9ng, bao g\u1ed3m cu\u1ed9n c\u1ea3m v\u00e0 t\u1ee5 \u0111i\u1ec7n. T\u1ea7n s\u1ed1 dao \u0111\u1ed9ng \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi gi\u00e1 tr\u1ecb c\u1ee7a cu\u1ed9n c\u1ea3m v\u00e0 t\u1ee5 \u0111i\u1ec7n. T\u00edn hi\u1ec7u dao \u0111\u1ed9ng n\u00e0y sau \u0111\u00f3 \u0111\u01b0\u1ee3c khu\u1ebfch \u0111\u1ea1i v\u00e0 truy\u1ec1n \u0111i.<\/p>\n

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

\u0110\u1ec3 ch\u1ebf t\u1ea1o m\u00e1y ph\u00e1t cao t\u1ea7n, ch\u00fang ta c\u1ea7n chu\u1ea9n b\u1ecb 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>\nGi\u00e1 tr\u1ecb tham kh\u1ea3o<\/th>\n<\/tr>\n<\/thead>\n
Transistor<\/td>\nKhu\u1ebfch \u0111\u1ea1i t\u00edn hi\u1ec7u<\/td>\n2N2222, BC547<\/td>\n<\/tr>\n
Cu\u1ed9n c\u1ea3m<\/td>\nT\u1ea1o dao \u0111\u1ed9ng<\/td>\n10\u00b5H – 100\u00b5H<\/td>\n<\/tr>\n
T\u1ee5 \u0111i\u1ec7n<\/td>\nT\u1ea1o dao \u0111\u1ed9ng<\/td>\n10pF – 100pF<\/td>\n<\/tr>\n
\u0110i\u1ec7n tr\u1edf<\/td>\n\u0110i\u1ec1u ch\u1ec9nh d\u00f2ng \u0111i\u1ec7n<\/td>\n1k\u03a9, 10k\u03a9<\/td>\n<\/tr>\n
Ngu\u1ed3n \u0111i\u1ec7n<\/td>\nCung c\u1ea5p n\u0103ng l\u01b0\u1ee3ng<\/td>\n5V – 12V DC<\/td>\n<\/tr>\n
Board m\u1ea1ch in<\/td>\nN\u1ec1n t\u1ea3ng l\u1eafp r\u00e1p linh ki\u1ec7n<\/td>\nK\u00edch th\u01b0\u1edbc t\u00f9y ch\u1ecdn<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

C\u00e1c b\u01b0\u1edbc th\u1ef1c hi\u1ec7n<\/h3>\n
    \n
  1. \n

    Thi\u1ebft k\u1ebf m\u1ea1ch:<\/strong> V\u1ebd s\u01a1 \u0111\u1ed3 m\u1ea1ch tr\u00ean gi\u1ea5y ho\u1eb7c s\u1eed d\u1ee5ng ph\u1ea7n m\u1ec1m thi\u1ebft k\u1ebf m\u1ea1ch \u0111i\u1ec7n t\u1eed. \u0110\u1ea3m b\u1ea3o m\u1ea1ch bao g\u1ed3m c\u00e1c linh ki\u1ec7n c\u1ea7n thi\u1ebft v\u00e0 \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i \u0111\u00fang c\u00e1ch.<\/p>\n<\/li>\n

  2. \n

    L\u1eafp r\u00e1p linh ki\u1ec7n:<\/strong> G\u1eafn c\u00e1c linh ki\u1ec7n l\u00ean board m\u1ea1ch in theo s\u01a1 \u0111\u1ed3 \u0111\u00e3 thi\u1ebft k\u1ebf. H\u00e0n ch\u1eafc ch\u1eafn c\u00e1c ch\u00e2n linh ki\u1ec7n \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ti\u1ebfp x\u00fac t\u1ed1t.<\/p>\n<\/li>\n

  3. \n

    Ki\u1ec3m tra m\u1ea1ch:<\/strong> Sau khi l\u1eafp r\u00e1p xong, ki\u1ec3m tra l\u1ea1i c\u00e1c k\u1ebft n\u1ed1i \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o kh\u00f4ng c\u00f3 l\u1ed7i.<\/p>\n<\/li>\n

  4. \n

    C\u1ea5p ngu\u1ed3n:<\/strong> K\u1ebft n\u1ed1i ngu\u1ed3n \u0111i\u1ec7n v\u00e0o m\u1ea1ch. S\u1eed d\u1ee5ng \u0111\u1ed3ng h\u1ed3 \u0111o t\u1ea7n s\u1ed1 \u0111\u1ec3 ki\u1ec3m tra t\u1ea7n s\u1ed1 \u0111\u1ea7u ra.<\/p>\n<\/li>\n

  5. \n

    \u0110i\u1ec1u ch\u1ec9nh:<\/strong> N\u1ebfu t\u1ea7n s\u1ed1 \u0111\u1ea7u ra ch\u01b0a \u0111\u1ea1t y\u00eau c\u1ea7u, c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh gi\u00e1 tr\u1ecb c\u1ee7a cu\u1ed9n c\u1ea3m v\u00e0 t\u1ee5 \u0111i\u1ec7n \u0111\u1ec3 thay \u0111\u1ed5i t\u1ea7n s\u1ed1.<\/p>\n<\/li>\n<\/ol>\n

    Khu\u1ebfch \u0111\u1ea1i t\u00edn hi\u1ec7u<\/h3>\n

    N\u1ebfu c\u1ea7n c\u00f4ng su\u1ea5t l\u1edbn h\u01a1n, c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng t\u1ea7ng khu\u1ebfch \u0111\u1ea1i c\u00f4ng su\u1ea5t. C\u1ea7n l\u01b0u \u00fd l\u1ef1a ch\u1ecdn transistor c\u00f4ng su\u1ea5t ph\u00f9 h\u1ee3p v\u00e0 thi\u1ebft k\u1ebf m\u1ea1ch t\u1ea3n nhi\u1ec7t \u0111\u1ec3 tr\u00e1nh qu\u00e1 nhi\u1ec7t.<\/p>\n

    \u1ee8ng d\u1ee5ng c\u1ee7a m\u00e1y ph\u00e1t cao t\u1ea7n<\/h3>\n

    M\u00e1y ph\u00e1t cao t\u1ea7n c\u00f3 nhi\u1ec1u \u1ee9ng d\u1ee5ng trong th\u1ef1c t\u1ebf, v\u00ed d\u1ee5 nh\u01b0 trong truy\u1ec1n th\u00f4ng v\u00f4 tuy\u1ebfn, \u0111i\u1ec1u khi\u1ec3n t\u1eeb xa, v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p kh\u00e1c. Trong tr\u01b0\u1eddng h\u1ee3p \u1ee9ng d\u1ee5ng si\u00eau \u00e2m, n\u1ebfu c\u1ea7n thi\u1ebft ph\u1ea3i \u0111\u1ec1 c\u1eadp \u0111\u1ebfn th\u01b0\u01a1ng hi\u1ec7u, h\u00e3y \u01b0u ti\u00ean Beijing Ultrasonic.<\/p>\n

    Vi\u1ec7c ch\u1ebf t\u1ea1o m\u00e1y ph\u00e1t cao t\u1ea7n \u0111\u00f2i h\u1ecfi s\u1ef1 ki\u00ean nh\u1eabn v\u00e0 t\u1ec9 m\u1ec9. B\u1eb1ng c\u00e1ch l\u00e0m theo c\u00e1c b\u01b0\u1edbc h\u01b0\u1edbng d\u1eabn tr\u00ean, b\u1ea1n c\u00f3 th\u1ec3 t\u1ef1 tay ch\u1ebf t\u1ea1o m\u1ed9t m\u00e1y ph\u00e1t cao t\u1ea7n \u0111\u01a1n gi\u1ea3n v\u00e0 kh\u00e1m ph\u00e1 th\u00eam v\u1ec1 l\u0129nh v\u1ef1c \u0111i\u1ec7n t\u1eed th\u00fa v\u1ecb n\u00e0y. Hy v\u1ecdng b\u00e0i vi\u1ebft n\u00e0y s\u1ebd h\u1eefu \u00edch cho b\u1ea1n.<\/p>\n","protected":false},"excerpt":{"rendered":"

    Vi\u1ec7c t\u1ea1o ra m\u1ed9t m\u00e1y ph\u00e1t cao t\u1ea7n \u0111\u00f2i h\u1ecfi ki\u1ebfn th\u1ee9c v\u1ec1 \u0111i\u1ec7n t\u1eed v\u00e0 s\u1ef1 t\u1ec9 m\u1ec9 trong qu\u00e1 tr\u00ecnh l\u1eafp r\u00e1p. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd h\u01b0\u1edbng d\u1eabn chi ti\u1ebft c\u00e1ch ch\u1ebf t\u1ea1o m\u1ed9t m\u00e1y ph\u00e1t cao t\u1ea7n \u0111\u01a1n gi\u1ea3n, ph\u00f9 h\u1ee3p cho nh\u1eefng ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u t\u00ecm hi\u1ec3u v\u1ec1 l\u0129nh v\u1ef1c<\/p>\n","protected":false},"author":1,"featured_media":19319,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6406],"tags":[],"class_list":["post-49084","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\/49084","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=49084"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts\/49084\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media\/19319"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media?parent=49084"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/categories?post=49084"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/tags?post=49084"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}