{"id":43948,"date":"2023-04-25T16:41:24","date_gmt":"2023-04-25T21:41:24","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/what-does-a-transducer-measure\/"},"modified":"2025-01-21T07:27:31","modified_gmt":"2025-01-21T12:27:31","slug":"what-does-a-transducer-measure","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/vi\/what-does-a-transducer-measure\/","title":{"rendered":"C\u1ea3m bi\u1ebfn \u0111o l\u01b0\u1eddng nh\u1eefng g\u00ec? Kh\u00e1m ph\u00e1 chi ti\u1ebft"},"content":{"rendered":"<p>C\u1ea3m bi\u1ebfn l\u00e0 m\u1ed9t ph\u1ea7n kh\u00f4ng th\u1ec3 thi\u1ebfu trong cu\u1ed9c s\u1ed1ng hi\u1ec7n \u0111\u1ea1i, \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c thu th\u1eadp d\u1eef li\u1ec7u t\u1eeb m\u00f4i tr\u01b0\u1eddng xung quanh v\u00e0 chuy\u1ec3n \u0111\u1ed5i ch\u00fang th\u00e0nh t\u00edn hi\u1ec7u \u0111i\u1ec7n \u0111\u1ec3 x\u1eed l\u00fd v\u00e0 \u0111i\u1ec1u khi\u1ec3n.  V\u1eady ch\u00ednh x\u00e1c th\u00ec m\u1ed9t c\u1ea3m bi\u1ebfn \u0111o l\u01b0\u1eddng c\u00e1i g\u00ec? B\u00e0i vi\u1ebft n\u00e0y s\u1ebd \u0111i s\u00e2u v\u00e0o t\u00ecm hi\u1ec3u v\u1ec1 c\u00e1c \u0111\u1ea1i l\u01b0\u1ee3ng v\u1eadt l\u00fd m\u00e0 c\u1ea3m bi\u1ebfn c\u00f3 th\u1ec3 \u0111o l\u01b0\u1eddng.<\/p>\n<h3>C\u00e1c \u0110\u1ea1i L\u01b0\u1ee3ng V\u1eadt L\u00fd C\u01a1 B\u1ea3n<\/h3>\n<p>C\u1ea3m bi\u1ebfn c\u00f3 kh\u1ea3 n\u0103ng \u0111o l\u01b0\u1eddng m\u1ed9t lo\u1ea1t c\u00e1c \u0111\u1ea1i l\u01b0\u1ee3ng v\u1eadt l\u00fd c\u01a1 b\u1ea3n, bao g\u1ed3m:<\/p>\n<ul>\n<li>\n<p><strong>Nhi\u1ec7t \u0111\u1ed9:<\/strong> C\u1ea3m bi\u1ebfn nhi\u1ec7t \u0111\u1ed9 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u \u1ee9ng d\u1ee5ng, t\u1eeb \u0111i\u1ec1u khi\u1ec3n nhi\u1ec7t \u0111\u1ed9 trong nh\u00e0 \u0111\u1ebfn gi\u00e1m s\u00e1t nhi\u1ec7t \u0111\u1ed9 trong c\u00f4ng nghi\u1ec7p.  C\u00e1c lo\u1ea1i c\u1ea3m bi\u1ebfn nhi\u1ec7t \u0111\u1ed9 ph\u1ed5 bi\u1ebfn bao g\u1ed3m c\u1ea3m bi\u1ebfn nhi\u1ec7t \u0111i\u1ec7n tr\u1edf (thermistor), c\u1ea3m bi\u1ebfn nhi\u1ec7t \u0111i\u1ec7n (thermocouple), v\u00e0 c\u1ea3m bi\u1ebfn b\u00e1n d\u1eabn.<\/p>\n<\/li>\n<li>\n<p><strong>\u00c1p su\u1ea5t:<\/strong> C\u1ea3m bi\u1ebfn \u00e1p su\u1ea5t \u0111o l\u01b0\u1eddng \u00e1p l\u1ef1c c\u1ee7a ch\u1ea5t l\u1ecfng ho\u1eb7c kh\u00ed. Ch\u00fang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c h\u1ec7 th\u1ed1ng nh\u01b0 h\u1ec7 th\u1ed1ng \u0111i\u1ec1u h\u00f2a kh\u00f4ng kh\u00ed, h\u1ec7 th\u1ed1ng th\u1ee7y l\u1ef1c, v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng y t\u1ebf.<\/p>\n<\/li>\n<li>\n<p><strong>L\u01b0u l\u01b0\u1ee3ng:<\/strong> C\u1ea3m bi\u1ebfn l\u01b0u l\u01b0\u1ee3ng \u0111o l\u01b0\u1eddng t\u1ed1c \u0111\u1ed9 ho\u1eb7c th\u1ec3 t\u00edch c\u1ee7a ch\u1ea5t l\u1ecfng ho\u1eb7c kh\u00ed di chuy\u1ec3n qua m\u1ed9t \u0111i\u1ec3m nh\u1ea5t \u0111\u1ecbnh.  \u1ee8ng d\u1ee5ng c\u1ee7a ch\u00fang bao g\u1ed3m qu\u1ea3n l\u00fd n\u01b0\u1edbc, ki\u1ec3m so\u00e1t qu\u00e1 tr\u00ecnh c\u00f4ng nghi\u1ec7p, v\u00e0 h\u1ec7 th\u1ed1ng t\u01b0\u1edbi ti\u00eau.<\/p>\n<\/li>\n<li>\n<p><strong>\u0110\u1ed9 d\u1ecbch chuy\u1ec3n\/V\u1ecb tr\u00ed:<\/strong> C\u1ea3m bi\u1ebfn v\u1ecb tr\u00ed x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed ho\u1eb7c s\u1ef1 d\u1ecbch chuy\u1ec3n c\u1ee7a m\u1ed9t v\u1eadt th\u1ec3.  V\u00ed d\u1ee5 bao g\u1ed3m c\u1ea3m bi\u1ebfn ti\u1ec7m c\u1eadn, c\u1ea3m bi\u1ebfn quang \u0111i\u1ec7n, v\u00e0 encoder.<\/p>\n<\/li>\n<\/ul>\n<h3>C\u00e1c \u0110\u1ea1i L\u01b0\u1ee3ng V\u1eadt L\u00fd Ph\u1ee9c T\u1ea1p<\/h3>\n<p>Ngo\u00e0i c\u00e1c \u0111\u1ea1i l\u01b0\u1ee3ng c\u01a1 b\u1ea3n, c\u1ea3m bi\u1ebfn c\u00f2n c\u00f3 th\u1ec3 \u0111o l\u01b0\u1eddng c\u00e1c \u0111\u1ea1i l\u01b0\u1ee3ng ph\u1ee9c t\u1ea1p h\u01a1n, ch\u1eb3ng h\u1ea1n nh\u01b0:<\/p>\n<ul>\n<li>\n<p><strong>Gia t\u1ed1c:<\/strong> C\u1ea3m bi\u1ebfn gia t\u1ed1c \u0111o l\u01b0\u1eddng s\u1ef1 thay \u0111\u1ed5i v\u1ec1 t\u1ed1c \u0111\u1ed9 c\u1ee7a m\u1ed9t v\u1eadt th\u1ec3. Ch\u00fang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh, m\u00e1y t\u00ednh b\u1ea3ng, v\u00e0 c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed kh\u00e1c \u0111\u1ec3 ph\u00e1t hi\u1ec7n chuy\u1ec3n \u0111\u1ed9ng v\u00e0 h\u01b0\u1edbng.<\/p>\n<\/li>\n<li>\n<p><strong>\u0110\u1ed9 rung:<\/strong> C\u1ea3m bi\u1ebfn \u0111\u1ed9 rung \u0111o l\u01b0\u1eddng m\u1ee9c \u0111\u1ed9 rung \u0111\u1ed9ng c\u1ee7a m\u1ed9t v\u1eadt th\u1ec3 ho\u1eb7c m\u00f4i tr\u01b0\u1eddng.  Ch\u00fang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong gi\u00e1m s\u00e1t t\u00ecnh tr\u1ea1ng m\u00e1y m\u00f3c, d\u1ef1 \u0111o\u00e1n l\u1ed7i, v\u00e0 \u0111\u1ea3m b\u1ea3o an to\u00e0n trong c\u00f4ng nghi\u1ec7p.<\/p>\n<\/li>\n<li>\n<p><strong>C\u01b0\u1eddng \u0111\u1ed9 \u00e1nh s\u00e1ng:<\/strong> C\u1ea3m bi\u1ebfn \u00e1nh s\u00e1ng \u0111o l\u01b0\u1eddng c\u01b0\u1eddng \u0111\u1ed9 \u00e1nh s\u00e1ng.  \u1ee8ng d\u1ee5ng c\u1ee7a ch\u00fang bao g\u1ed3m \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 s\u00e1ng m\u00e0n h\u00ecnh, h\u1ec7 th\u1ed1ng chi\u1ebfu s\u00e1ng t\u1ef1 \u0111\u1ed9ng, v\u00e0 nhi\u1ebfp \u1ea3nh.<\/p>\n<\/li>\n<li>\n<p><strong>\u00c2m thanh:<\/strong> C\u1ea3m bi\u1ebfn \u00e2m thanh \u0111o l\u01b0\u1eddng \u00e1p su\u1ea5t \u00e2m thanh.  Ch\u00fang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong micro, m\u00e1y tr\u1ee3 th\u00ednh, v\u00e0 c\u00e1c thi\u1ebft b\u1ecb ghi \u00e2m.<\/p>\n<\/li>\n<\/ul>\n<h3>M\u1ed9t S\u1ed1 Lo\u1ea1i C\u1ea3m Bi\u1ebfn \u0110\u1eb7c Bi\u1ec7t<\/h3>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>Lo\u1ea1i C\u1ea3m Bi\u1ebfn<\/th>\n<th>\u0110\u1ea1i L\u01b0\u1ee3ng \u0110o L\u01b0\u1eddng<\/th>\n<th>\u1ee8ng D\u1ee5ng<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>C\u1ea3m bi\u1ebfn si\u00eau \u00e2m<\/td>\n<td>Kho\u1ea3ng c\u00e1ch, m\u1ee9c ch\u1ea5t l\u1ecfng<\/td>\n<td>\u0110o kho\u1ea3ng c\u00e1ch, ki\u1ec3m tra khuy\u1ebft t\u1eadt trong v\u1eadt li\u1ec7u, \u0111o m\u1ee9c ch\u1ea5t l\u1ecfng trong b\u1ed3n ch\u1ee9a<\/td>\n<\/tr>\n<tr>\n<td>C\u1ea3m bi\u1ebfn \u0111\u1ed9 \u1ea9m<\/td>\n<td>\u0110\u1ed9 \u1ea9m<\/td>\n<td>\u0110i\u1ec1u h\u00f2a kh\u00f4ng kh\u00ed, d\u1ef1 b\u00e1o th\u1eddi ti\u1ebft, n\u00f4ng nghi\u1ec7p<\/td>\n<\/tr>\n<tr>\n<td>C\u1ea3m bi\u1ebfn kh\u00ed<\/td>\n<td>N\u1ed3ng \u0111\u1ed9 kh\u00ed<\/td>\n<td>Gi\u00e1m s\u00e1t ch\u1ea5t l\u01b0\u1ee3ng kh\u00f4ng kh\u00ed, ph\u00e1t hi\u1ec7n r\u00f2 r\u1ec9 kh\u00ed<\/td>\n<\/tr>\n<tr>\n<td>C\u1ea3m bi\u1ebfn pH<\/td>\n<td>\u0110\u1ed9 pH<\/td>\n<td>Gi\u00e1m s\u00e1t ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc, ki\u1ec3m so\u00e1t qu\u00e1 tr\u00ecnh h\u00f3a h\u1ecdc<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>C\u1ea3m Bi\u1ebfn Si\u00eau \u00c2m<\/h3>\n<p>C\u1ea3m bi\u1ebfn si\u00eau \u00e2m ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean nguy\u00ean l\u00fd s\u00f3ng \u00e2m thanh t\u1ea7n s\u1ed1 cao. Ch\u00fang ph\u00e1t ra s\u00f3ng si\u00eau \u00e2m v\u00e0 \u0111o th\u1eddi gian s\u00f3ng ph\u1ea3n x\u1ea1 tr\u1edf l\u1ea1i \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh kho\u1ea3ng c\u00e1ch \u0111\u1ebfn v\u1eadt th\u1ec3.  M\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng c\u1ee7a c\u1ea3m bi\u1ebfn si\u00eau \u00e2m bao g\u1ed3m \u0111o kho\u1ea3ng c\u00e1ch, \u0111o m\u1ee9c ch\u1ea5t l\u1ecfng, v\u00e0 ki\u1ec3m tra khuy\u1ebft t\u1eadt trong v\u1eadt li\u1ec7u.<\/p>\n<p>T\u00f3m l\u1ea1i, c\u1ea3m bi\u1ebfn l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 quan tr\u1ecdng trong vi\u1ec7c \u0111o l\u01b0\u1eddng v\u00e0 thu th\u1eadp d\u1eef li\u1ec7u v\u1ec1 th\u1ebf gi\u1edbi xung quanh ch\u00fang ta.  S\u1ef1 \u0111a d\u1ea1ng v\u1ec1 lo\u1ea1i c\u1ea3m bi\u1ebfn v\u00e0 kh\u1ea3 n\u0103ng \u0111o l\u01b0\u1eddng nhi\u1ec1u \u0111\u1ea1i l\u01b0\u1ee3ng v\u1eadt l\u00fd kh\u00e1c nhau khi\u1ebfn ch\u00fang tr\u1edf th\u00e0nh m\u1ed9t ph\u1ea7n kh\u00f4ng th\u1ec3 thi\u1ebfu trong nhi\u1ec1u \u1ee9ng d\u1ee5ng, t\u1eeb \u0111\u1eddi s\u1ed1ng h\u00e0ng ng\u00e0y \u0111\u1ebfn c\u00e1c l\u0129nh v\u1ef1c khoa h\u1ecdc v\u00e0 c\u00f4ng nghi\u1ec7p ph\u1ee9c t\u1ea1p.  S\u1ef1 ph\u00e1t tri\u1ec3n kh\u00f4ng ng\u1eebng c\u1ee7a c\u00f4ng ngh\u1ec7 c\u1ea3m bi\u1ebfn h\u1ee9a h\u1eb9n s\u1ebd mang l\u1ea1i nh\u1eefng \u1ee9ng d\u1ee5ng m\u1edbi v\u00e0 \u0111\u1ed9t ph\u00e1 trong t\u01b0\u01a1ng lai.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>C\u1ea3m bi\u1ebfn l\u00e0 m\u1ed9t ph\u1ea7n kh\u00f4ng th\u1ec3 thi\u1ebfu trong cu\u1ed9c s\u1ed1ng hi\u1ec7n \u0111\u1ea1i, \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c thu th\u1eadp d\u1eef li\u1ec7u t\u1eeb m\u00f4i tr\u01b0\u1eddng xung quanh v\u00e0 chuy\u1ec3n \u0111\u1ed5i ch\u00fang th\u00e0nh t\u00edn hi\u1ec7u \u0111i\u1ec7n \u0111\u1ec3 x\u1eed l\u00fd v\u00e0 \u0111i\u1ec1u khi\u1ec3n. V\u1eady ch\u00ednh x\u00e1c th\u00ec m\u1ed9t c\u1ea3m bi\u1ebfn \u0111o l\u01b0\u1eddng c\u00e1i g\u00ec? B\u00e0i<\/p>\n","protected":false},"author":1,"featured_media":26466,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6406],"tags":[],"class_list":["post-43948","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\/43948","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=43948"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts\/43948\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media\/26466"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media?parent=43948"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/categories?post=43948"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/tags?post=43948"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}