{"id":48156,"date":"2023-04-21T23:38:05","date_gmt":"2023-04-22T04:38:05","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/how-to-make-homemade-piezoelectric-crystals\/"},"modified":"2025-01-21T07:19:13","modified_gmt":"2025-01-21T12:19:13","slug":"how-to-make-homemade-piezoelectric-crystals","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/vi\/how-to-make-homemade-piezoelectric-crystals\/","title":{"rendered":"T\u1ef1 ch\u1ebf tinh th\u1ec3 \u00e1p \u0111i\u1ec7n t\u1ea1i nh\u00e0"},"content":{"rendered":"<p>Vi\u1ec7c ch\u1ebf t\u1ea1o tinh th\u1ec3 \u00e1p \u0111i\u1ec7n t\u1ea1i nh\u00e0 l\u00e0 m\u1ed9t th\u00e1ch th\u1ee9c l\u1edbn, \u0111\u00f2i h\u1ecfi ki\u1ebfn th\u1ee9c chuy\u00ean m\u00f4n v\u00e0 thi\u1ebft b\u1ecb ph\u1ee9c t\u1ea1p. Tinh th\u1ec3 \u00e1p \u0111i\u1ec7n th\u01b0\u01a1ng m\u1ea1i \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t v\u1edbi quy tr\u00ecnh ki\u1ec3m so\u00e1t ch\u1eb7t ch\u1ebd \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t v\u00e0 \u0111\u1ed9 tin c\u1eady. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd h\u01b0\u1edbng d\u1eabn b\u1ea1n t\u00ecm hi\u1ec3u v\u1ec1 nguy\u00ean l\u00fd c\u01a1 b\u1ea3n v\u00e0 m\u1ed9t s\u1ed1 ph\u01b0\u01a1ng ph\u00e1p ti\u1ebfp c\u1eadn vi\u1ec7c t\u1ef1 ch\u1ebf t\u1ea1o tinh th\u1ec3 \u00e1p \u0111i\u1ec7n, tuy nhi\u00ean c\u1ea7n l\u01b0u \u00fd r\u1eb1ng ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 hi\u1ec7u su\u1ea5t s\u1ebd kh\u00f3 \u0111\u1ea1t \u0111\u01b0\u1ee3c nh\u01b0 s\u1ea3n ph\u1ea9m c\u00f4ng nghi\u1ec7p.<\/p>\n<h3>Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a tinh th\u1ec3 \u00e1p \u0111i\u1ec7n<\/h3>\n<p>Tinh th\u1ec3 \u00e1p \u0111i\u1ec7n ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean hi\u1ec7u \u1ee9ng \u00e1p \u0111i\u1ec7n, t\u1ee9c l\u00e0 kh\u1ea3 n\u0103ng t\u1ea1o ra \u0111i\u1ec7n \u00e1p khi ch\u1ecbu \u00e1p l\u1ef1c c\u01a1 h\u1ecdc v\u00e0 ng\u01b0\u1ee3c l\u1ea1i, bi\u1ebfn d\u1ea1ng khi c\u00f3 \u0111i\u1ec7n tr\u01b0\u1eddng t\u00e1c \u0111\u1ed9ng. Hi\u1ec7u \u1ee9ng n\u00e0y xu\u1ea5t hi\u1ec7n trong m\u1ed9t s\u1ed1 lo\u1ea1i v\u1eadt li\u1ec7u c\u00f3 c\u1ea5u tr\u00fac tinh th\u1ec3 kh\u00f4ng \u0111\u1ed1i x\u1ee9ng.<\/p>\n<h3>V\u1eadt li\u1ec7u ti\u1ec1m n\u0103ng cho vi\u1ec7c t\u1ef1 ch\u1ebf t\u1ea1o<\/h3>\n<p>M\u1ed9t s\u1ed1 v\u1eadt li\u1ec7u c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 th\u1eed nghi\u1ec7m ch\u1ebf t\u1ea1o tinh th\u1ec3 \u00e1p \u0111i\u1ec7n t\u1ea1i nh\u00e0 bao g\u1ed3m:<\/p>\n<ul>\n<li><strong>G\u1ed1m \u00e1p \u0111i\u1ec7n (PZT):<\/strong> \u0110\u00e2y l\u00e0 v\u1eadt li\u1ec7u ph\u1ed5 bi\u1ebfn nh\u1ea5t, tuy nhi\u00ean vi\u1ec7c ch\u1ebf t\u1ea1o PZT t\u1ea1i nh\u00e0 r\u1ea5t kh\u00f3 kh\u0103n do y\u00eau c\u1ea7u nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u00e1p su\u1ea5t cao trong qu\u00e1 tr\u00ecnh thi\u00eau k\u1ebft.<\/li>\n<li><strong>\u0110\u00e1 th\u1ea1ch anh:<\/strong>  Th\u1ea1ch anh t\u1ef1 nhi\u00ean c\u00f3 t\u00ednh \u00e1p \u0111i\u1ec7n, nh\u01b0ng vi\u1ec7c gia c\u00f4ng v\u00e0 t\u1ea1o h\u00ecnh tinh th\u1ec3 \u0111\u00f2i h\u1ecfi k\u1ef9 thu\u1eadt chuy\u00ean m\u00f4n.<\/li>\n<li><strong>G\u1ed1m Rochelle Salt:<\/strong>  \u0110\u00e2y l\u00e0 m\u1ed9t lo\u1ea1i v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n c\u00f3 th\u1ec3 nu\u00f4i c\u1ea5y th\u00e0nh tinh th\u1ec3 t\u1ea1i nh\u00e0, tuy nhi\u00ean \u0111\u1ed9 b\u1ec1n v\u00e0 hi\u1ec7u su\u1ea5t k\u00e9m h\u01a1n so v\u1edbi PZT v\u00e0 th\u1ea1ch anh.<\/li>\n<\/ul>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>V\u1eadt li\u1ec7u<\/th>\n<th>\u01afu \u0111i\u1ec3m<\/th>\n<th>Nh\u01b0\u1ee3c \u0111i\u1ec3m<\/th>\n<th>Kh\u1ea3 thi t\u1ea1i nh\u00e0<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>G\u1ed1m PZT<\/td>\n<td>Hi\u1ec7u su\u1ea5t cao, \u0111\u1ed9 b\u1ec1n t\u1ed1t<\/td>\n<td>Kh\u00f3 ch\u1ebf t\u1ea1o, y\u00eau c\u1ea7u thi\u1ebft b\u1ecb ph\u1ee9c t\u1ea1p<\/td>\n<td>R\u1ea5t kh\u00f3<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u00e1 th\u1ea1ch anh<\/td>\n<td>\u0110\u1ed9 \u1ed5n \u0111\u1ecbnh cao<\/td>\n<td>Kh\u00f3 gia c\u00f4ng, chi ph\u00ed cao<\/td>\n<td>Kh\u00f3<\/td>\n<\/tr>\n<tr>\n<td>G\u1ed1m Rochelle Salt<\/td>\n<td>D\u1ec5 nu\u00f4i c\u1ea5y tinh th\u1ec3<\/td>\n<td>\u0110\u1ed9 b\u1ec1n k\u00e9m, hi\u1ec7u su\u1ea5t th\u1ea5p<\/td>\n<td>Kh\u1ea3 thi nh\u01b0ng ch\u1ea5t l\u01b0\u1ee3ng th\u1ea5p<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Ph\u01b0\u01a1ng ph\u00e1p nu\u00f4i c\u1ea5y tinh th\u1ec3 Rochelle Salt<\/h3>\n<p>Rochelle Salt c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c nu\u00f4i c\u1ea5y t\u1eeb dung d\u1ecbch b\u00e3o h\u00f2a. Qu\u00e1 tr\u00ecnh n\u00e0y bao g\u1ed3m h\u00f2a tan Rochelle Salt v\u00e0o n\u01b0\u1edbc n\u00f3ng cho \u0111\u1ebfn khi dung d\u1ecbch b\u00e3o h\u00f2a, sau \u0111\u00f3 \u0111\u1ec3 ngu\u1ed9i t\u1eeb t\u1eeb \u0111\u1ec3 tinh th\u1ec3 b\u1eaft \u0111\u1ea7u h\u00ecnh th\u00e0nh.  C\u1ea7n ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u0111\u1ed9 tinh khi\u1ebft c\u1ee7a dung d\u1ecbch \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 t\u1ed1t nh\u1ea5t.<\/p>\n<h3>Ph\u01b0\u01a1ng ph\u00e1p ch\u1ebf t\u1ea1o v\u1edbi g\u1ed1m PZT (c\u1ea5p \u0111\u1ed9 nghi\u00ean c\u1ee9u)<\/h3>\n<p>Vi\u1ec7c ch\u1ebf t\u1ea1o g\u1ed1m PZT t\u1ea1i nh\u00e0 c\u1ef1c k\u1ef3 kh\u00f3 kh\u0103n.  Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111\u00f2i h\u1ecfi ph\u1ea3i c\u00f3 b\u1ed9t PZT, m\u00e1y \u00e9p th\u1ee7y l\u1ef1c v\u00e0 l\u00f2 nung nhi\u1ec7t \u0111\u1ed9 cao. B\u1ed9t PZT \u0111\u01b0\u1ee3c \u00e9p th\u00e0nh h\u00ecnh d\u1ea1ng mong mu\u1ed1n d\u01b0\u1edbi \u00e1p su\u1ea5t cao, sau \u0111\u00f3 \u0111\u01b0\u1ee3c thi\u00eau k\u1ebft \u1edf nhi\u1ec7t \u0111\u1ed9 r\u1ea5t cao \u0111\u1ec3 t\u1ea1o th\u00e0nh g\u1ed1m \u00e1p \u0111i\u1ec7n.<\/p>\n<h3>Th\u1eed nghi\u1ec7m t\u00ednh \u00e1p \u0111i\u1ec7n<\/h3>\n<p>Sau khi ch\u1ebf t\u1ea1o, c\u00f3 th\u1ec3 ki\u1ec3m tra t\u00ednh \u00e1p \u0111i\u1ec7n c\u1ee7a tinh th\u1ec3 b\u1eb1ng c\u00e1ch k\u1ebft n\u1ed1i n\u00f3 v\u1edbi m\u1ed9t \u0111\u1ed3ng h\u1ed3 \u0111o \u0111i\u1ec7n \u00e1p v\u00e0 t\u00e1c d\u1ee5ng l\u1ef1c c\u01a1 h\u1ecdc l\u00ean tinh th\u1ec3. N\u1ebfu tinh th\u1ec3 t\u1ea1o ra \u0111i\u1ec7n \u00e1p, ch\u1ee9ng t\u1ecf n\u00f3 c\u00f3 t\u00ednh \u00e1p \u0111i\u1ec7n.<\/p>\n<p>Vi\u1ec7c t\u1ef1 ch\u1ebf t\u1ea1o tinh th\u1ec3 \u00e1p \u0111i\u1ec7n t\u1ea1i nh\u00e0 l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh ph\u1ee9c t\u1ea1p v\u00e0 \u0111\u00f2i h\u1ecfi nhi\u1ec1u n\u1ed7 l\u1ef1c. K\u1ebft qu\u1ea3 \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u00f3 th\u1ec3 kh\u00f4ng nh\u01b0 mong \u0111\u1ee3i do h\u1ea1n ch\u1ebf v\u1ec1 thi\u1ebft b\u1ecb v\u00e0 k\u1ef9 thu\u1eadt.  \u0110\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf, n\u00ean s\u1eed d\u1ee5ng tinh th\u1ec3 \u00e1p \u0111i\u1ec7n th\u01b0\u01a1ng m\u1ea1i \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t v\u00e0 \u0111\u1ed9 tin c\u1eady.  N\u1ebfu c\u1ea7n t\u00ecm hi\u1ec3u v\u1ec1 c\u00e1c thi\u1ebft b\u1ecb si\u00eau \u00e2m s\u1eed d\u1ee5ng tinh th\u1ec3 \u00e1p \u0111i\u1ec7n, c\u00f3 th\u1ec3 tham kh\u1ea3o c\u00e1c s\u1ea3n ph\u1ea9m c\u1ee7a Beijing Ultrasonic, m\u1ed9t th\u01b0\u01a1ng hi\u1ec7u chuy\u00ean cung c\u1ea5p thi\u1ebft b\u1ecb si\u00eau \u00e2m ch\u1ea5t l\u01b0\u1ee3ng cao. Tuy nhi\u00ean, c\u1ea7n l\u01b0u \u00fd r\u1eb1ng vi\u1ec7c l\u1ef1a ch\u1ecdn s\u1ea3n ph\u1ea9m ph\u1ee5 thu\u1ed9c v\u00e0o nhu c\u1ea7u c\u1ee5 th\u1ec3 c\u1ee7a t\u1eebng \u1ee9ng d\u1ee5ng.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Vi\u1ec7c ch\u1ebf t\u1ea1o tinh th\u1ec3 \u00e1p \u0111i\u1ec7n t\u1ea1i nh\u00e0 l\u00e0 m\u1ed9t th\u00e1ch th\u1ee9c l\u1edbn, \u0111\u00f2i h\u1ecfi ki\u1ebfn th\u1ee9c chuy\u00ean m\u00f4n v\u00e0 thi\u1ebft b\u1ecb ph\u1ee9c t\u1ea1p. Tinh th\u1ec3 \u00e1p \u0111i\u1ec7n th\u01b0\u01a1ng m\u1ea1i \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t v\u1edbi quy tr\u00ecnh ki\u1ec3m so\u00e1t ch\u1eb7t ch\u1ebd \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t v\u00e0 \u0111\u1ed9 tin c\u1eady. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd h\u01b0\u1edbng<\/p>\n","protected":false},"author":1,"featured_media":26468,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6406],"tags":[],"class_list":["post-48156","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\/48156","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=48156"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts\/48156\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media\/26468"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media?parent=48156"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/categories?post=48156"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/tags?post=48156"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}