{"id":18619,"date":"2024-05-25T13:46:22","date_gmt":"2024-05-25T05:46:22","guid":{"rendered":"https:\/\/chimaytech.net\/?p=18619"},"modified":"2024-05-27T15:23:01","modified_gmt":"2024-05-27T07:23:01","slug":"hall-effect-flow-sensor","status":"publish","type":"post","link":"https:\/\/chimaytech.net\/vi\/hall-effect-flow-sensor\/","title":{"rendered":"c\u1ea3m bi\u1ebfn l\u01b0u l\u01b0\u1ee3ng hi\u1ec7u \u1ee9ng Hall"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_50 counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/chimaytech.net\/vi\/hall-effect-flow-sensor\/#Tim_hieu_chuc_nang_va_ung_dung_cua_cam_bien_luu_luong_hieu_ung_Hall\" title=\"T\u00ecm hi\u1ec3u ch\u1ee9c n\u0103ng v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a c\u1ea3m bi\u1ebfn l\u01b0u l\u01b0\u1ee3ng hi\u1ec7u \u1ee9ng Hall\">T\u00ecm hi\u1ec3u ch\u1ee9c n\u0103ng v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a c\u1ea3m bi\u1ebfn l\u01b0u l\u01b0\u1ee3ng hi\u1ec7u \u1ee9ng Hall<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/chimaytech.net\/vi\/hall-effect-flow-sensor\/#Vai_tro_cua_cam_bien_luu_luong_hieu_ung_Hall_trong_cong_nghe_hien_dai\" title=\"Vai tr\u00f2 c\u1ee7a c\u1ea3m bi\u1ebfn l\u01b0u l\u01b0\u1ee3ng hi\u1ec7u \u1ee9ng Hall trong c\u00f4ng ngh\u1ec7 hi\u1ec7n \u0111\u1ea1i\">Vai tr\u00f2 c\u1ee7a c\u1ea3m bi\u1ebfn l\u01b0u l\u01b0\u1ee3ng hi\u1ec7u \u1ee9ng Hall trong c\u00f4ng ngh\u1ec7 hi\u1ec7n \u0111\u1ea1i<\/a><\/li><\/ul><\/nav><\/div>\n<h1 id=\"understanding-the-functionality-and-applications-of-hall-effect-flow-sensors-wpaicgheading\"><span class=\"ez-toc-section\" id=\"Tim_hieu_chuc_nang_va_ung_dung_cua_cam_bien_luu_luong_hieu_ung_Hall\"><\/span>T\u00ecm hi\u1ec3u ch\u1ee9c n\u0103ng v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a c\u1ea3m bi\u1ebfn l\u01b0u l\u01b0\u1ee3ng hi\u1ec7u \u1ee9ng Hall<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<p>\nC\u1ea3m bi\u1ebfn l\u01b0u l\u01b0\u1ee3ng Hi\u1ec7u \u1ee9ng Hall l\u00e0 m\u1ed9t c\u1ea3i ti\u1ebfn c\u00f4ng ngh\u1ec7 quan tr\u1ecdng \u0111\u00e3 c\u00e1ch m\u1ea1ng h\u00f3a vi\u1ec7c \u0111o t\u1ed1c \u0111\u1ed9 d\u00f2ng ch\u1ea5t l\u1ecfng trong c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c nhau. Nh\u1eefng c\u1ea3m bi\u1ebfn n\u00e0y, \u0111\u01b0\u1ee3c \u0111\u1eb7t t\u00ean theo nguy\u00ean l\u00fd Hi\u1ec7u \u1ee9ng Hall, n\u1ed5i ti\u1ebfng v\u1ec1 \u0111\u1ed9 ch\u00ednh x\u00e1c, \u0111\u1ed9 tin c\u1eady v\u00e0 t\u00ednh linh ho\u1ea1t, khi\u1ebfn ch\u00fang tr\u1edf th\u00e0nh c\u00f4ng c\u1ee5 kh\u00f4ng th\u1ec3 thi\u1ebfu trong nhi\u1ec1u \u1ee9ng d\u1ee5ng.<\/p>\n<p>Nguy\u00ean l\u00fd Hi\u1ec7u \u1ee9ng Hall, \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n b\u1edfi Edwin Hall v\u00e0o n\u0103m 1879, l\u00e0 m\u1ed9t hi\u1ec7n t\u01b0\u1ee3ng x\u1ea3y ra khi d\u00e2y d\u1eabn mang d\u00f2ng \u0111i\u1ec7n \u0111\u1eb7t trong t\u1eeb tr\u01b0\u1eddng vu\u00f4ng g\u00f3c. S\u1ef1 s\u1eafp x\u1ebfp n\u00e0y g\u00e2y ra s\u1ef1 ch\u00eanh l\u1ec7ch \u0111i\u1ec7n \u00e1p tr\u00ean d\u00e2y d\u1eabn, \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u0111i\u1ec7n \u00e1p Hall. \u0110i\u1ec7n \u00e1p n\u00e0y t\u1ef7 l\u1ec7 thu\u1eadn v\u1edbi t\u00edch c\u1ee7a d\u00f2ng \u0111i\u1ec7n v\u00e0 t\u1eeb tr\u01b0\u1eddng. C\u1ea3m bi\u1ebfn l\u01b0u l\u01b0\u1ee3ng Hi\u1ec7u \u1ee9ng Hall t\u1eadn d\u1ee5ng nguy\u00ean t\u1eafc n\u00e0y \u0111\u1ec3 \u0111o t\u1ed1c \u0111\u1ed9 d\u00f2ng ch\u1ea5t l\u1ecfng.<\/p>\n<p>Trong c\u1ea3m bi\u1ebfn l\u01b0u l\u01b0\u1ee3ng Hi\u1ec7u \u1ee9ng Hall, m\u1ed9t b\u00e1nh gu\u1ed3ng nh\u1ecf ho\u1eb7c tuabin \u0111\u01b0\u1ee3c \u0111\u1eb7t trong \u0111\u01b0\u1eddng d\u1eabn ch\u1ea5t l\u1ecfng. Khi ch\u1ea5t l\u1ecfng ch\u1ea3y, n\u00f3 l\u00e0m cho b\u00e1nh xe quay. M\u1ed9t nam ch\u00e2m \u0111\u01b0\u1ee3c g\u1eafn v\u00e0o b\u00e1nh xe v\u00e0 khi n\u00f3 quay, n\u00f3 s\u1ebd t\u1ea1o ra m\u1ed9t t\u1eeb tr\u01b0\u1eddng dao \u0111\u1ed9ng theo chuy\u1ec3n \u0111\u1ed9ng quay c\u1ee7a b\u00e1nh xe. C\u1ea3m bi\u1ebfn Hi\u1ec7u \u1ee9ng Hall \u0111\u01b0\u1ee3c \u0111\u1eb7t g\u1ea7n \u0111\u00f3 s\u1ebd ph\u00e1t hi\u1ec7n nh\u1eefng dao \u0111\u1ed9ng n\u00e0y v\u00e0 chuy\u1ec3n \u0111\u1ed5i ch\u00fang th\u00e0nh \u0111i\u1ec7n \u00e1p. \u0110i\u1ec7n \u00e1p n\u00e0y sau \u0111\u00f3 \u0111\u01b0\u1ee3c \u0111o v\u00e0 s\u1eed d\u1ee5ng \u0111\u1ec3 t\u00ednh t\u1ed1c \u0111\u1ed9 d\u00f2ng ch\u1ea3y c\u1ee7a ch\u1ea5t l\u1ecfng. Ch\u1ea5t l\u1ecfng ch\u1ea3y c\u00e0ng nhanh th\u00ec b\u00e1nh xe quay c\u00e0ng nhanh v\u00e0 \u0111i\u1ec7n \u00e1p t\u1ea1o ra c\u00e0ng cao. Do \u0111\u00f3, \u0111i\u1ec7n \u00e1p Hall \u0111\u00f3ng vai tr\u00f2 l\u00e0 ch\u1ec9 b\u00e1o \u0111\u00e1ng tin c\u1eady v\u1ec1 t\u1ed1c \u0111\u1ed9 d\u00f2ng ch\u1ea3y c\u1ee7a ch\u1ea5t l\u1ecfng.<\/p>\n<figure class=\"wp-block-table\">\n<table>\n<tbody>\n<tr>\n<td>M\u1eabu nh\u1ea1c c\u1ee5<\/td>\n<td colspan=\"2\">FET-8920<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"3\">Ph\u1ea1m vi \u0111o<\/td>\n<td>D\u00f2ng ch\u1ea3y t\u1ee9c th\u1eddi<\/td>\n<td>(0~2000)m3\/h<\/td>\n<\/tr>\n<tr>\n<td>D\u00f2ng t\u00edch l\u0169y<\/td>\n<td>(0~99999999)m3<\/td>\n<\/tr>\n<tr>\n<td>T\u1ed1c \u0111\u1ed9 d\u00f2ng ch\u1ea3y<\/td>\n<td>(0,5~5)m\/s<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1ed9 ph\u00e2n gi\u1ea3i<\/td>\n<td colspan=\"2\">0,001m3\/gi\u1edd<\/td>\n<\/tr>\n<tr>\n<td>M\u1ee9c \u0111\u1ed9 ch\u00ednh x\u00e1c<\/td>\n<td colspan=\"2\">D\u01b0\u1edbi 2,5% RS ho\u1eb7c 0,025m\/s, t\u00f9y theo gi\u00e1 tr\u1ecb n\u00e0o l\u1edbn nh\u1ea5t<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1ed9 d\u1eabn \u0111i\u1ec7n<\/td>\n<td colspan=\"2\"> v\u00e0 gt;20\u03bcS\/cm<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"4\">(4~20)\u0111\u1ea7u ra mA<\/td>\n<td>S\u1ed1 l\u01b0\u1ee3ng k\u00eanh<\/td>\n<td>K\u00eanh \u0111\u01a1n<\/td>\n<\/tr>\n<tr>\n<td>T\u00ednh n\u0103ng k\u1ef9 thu\u1eadt<\/td>\n<td>Ch\u1ebf \u0111\u1ed9 c\u00e1ch ly, \u0111\u1ea3o ng\u01b0\u1ee3c, \u0111i\u1ec1u ch\u1ec9nh, \u0111\u1ed3ng h\u1ed3 \u0111o\/truy\u1ec1n v\u00e0 nbsp;ch\u1ebf \u0111\u1ed9 k\u00e9p<\/td>\n<\/tr>\n<tr>\n<td>\u0110i\u1ec7n tr\u1edf v\u00f2ng l\u1eb7p<\/td>\n<td>400\u03a9\uff08Max\uff09, DC 24V<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1ed9 ch\u00ednh x\u00e1c truy\u1ec1n<\/td>\n<td>\u00b10.1mA<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"4\">\u0110\u1ea7u ra \u0111i\u1ec1u khi\u1ec3n<\/td>\n<td>S\u1ed1 l\u01b0\u1ee3ng k\u00eanh<\/td>\n<td>K\u00eanh \u0111\u01a1n<\/td>\n<\/tr>\n<tr>\n<td>Ti\u1ebfp \u0111i\u1ec3m \u0111i\u1ec7n<\/td>\n<td>R\u01a1le quang \u0111i\u1ec7n b\u00e1n d\u1eabn<\/td>\n<\/tr>\n<tr>\n<td>Kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i<\/td>\n<td>50mA\uff08Max\uff09, DC 30V<\/td>\n<\/tr>\n<tr>\n<td>Ch\u1ebf \u0111\u1ed9 \u0111i\u1ec1u khi\u1ec3n<\/td>\n<td>B\u00e1o \u0111\u1ed9ng gi\u1edbi h\u1ea1n tr\u00ean\/d\u01b0\u1edbi s\u1ed1 l\u01b0\u1ee3ng t\u1ee9c th\u1eddi<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1ea7u ra k\u1ef9 thu\u1eadt s\u1ed1<\/td>\n<td colspan=\"2\">RS485(giao th\u1ee9c MODBUS), \u0111\u1ea7u ra xung1KHz<\/td>\n<\/tr>\n<tr>\n<td>C\u00f4ng su\u1ea5t l\u00e0m vi\u1ec7c<\/td>\n<td>Ngu\u1ed3n \u0111i\u1ec7n<\/td>\n<td>DC 9~28V<\/td>\n<\/tr>\n<tr>\n<td>ngu\u1ed3n<\/td>\n<td>Ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng<\/td>\n<td>\u22643.0W<\/td>\n<\/tr>\n<tr>\n<td>\u3000<\/td>\n<td>\u0110\u01b0\u1eddng k\u00ednh<\/td>\n<td>DN40~DN300(c\u00f3 th\u1ec3 t\u00f9y ch\u1ec9nh)<\/td>\n<\/tr>\n<tr>\n<td>M\u00f4i tr\u01b0\u1eddng l\u00e0m vi\u1ec7c<\/td>\n<td colspan=\"2\">Nhi\u1ec7t \u0111\u1ed9:(0~50) v\u00e0 nbsp;\u2103; \u0110\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i: v\u00e0 nbsp;\u226485 ph\u1ea7n tr\u0103m RH(kh\u00f4ng ng\u01b0ng t\u1ee5)<\/td>\n<\/tr>\n<tr>\n<td>M\u00f4i tr\u01b0\u1eddng l\u01b0u tr\u1eef<\/td>\n<td colspan=\"2\">Nhi\u1ec7t \u0111\u1ed9:(-20~60) v\u00e0 nbsp;\u2103; \u0110\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i: v\u00e0 nbsp;\u226485 ph\u1ea7n tr\u0103m RH(kh\u00f4ng ng\u01b0ng t\u1ee5)<\/td>\n<\/tr>\n<tr>\n<td>C\u1ea5p b\u1ea3o v\u1ec7<\/td>\n<td colspan=\"2\">IP65<\/td>\n<\/tr>\n<tr>\n<td>Ph\u01b0\u01a1ng ph\u00e1p c\u00e0i \u0111\u1eb7t<\/td>\n<td colspan=\"2\">Ch\u00e8n v\u00e0 nbsp;pipeline v\u00e0 nbsp;c\u00e0i \u0111\u1eb7t<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n<p>C\u1ea3m bi\u1ebfn l\u01b0u l\u01b0\u1ee3ng Hi\u1ec7u \u1ee9ng Hall mang l\u1ea1i m\u1ed9t s\u1ed1 l\u1ee3i th\u1ebf so v\u1edbi c\u00e1c lo\u1ea1i c\u1ea3m bi\u1ebfn l\u01b0u l\u01b0\u1ee3ng kh\u00e1c. Ch\u00fang c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c cao, c\u00f3 kh\u1ea3 n\u0103ng \u0111o t\u1ed1c \u0111\u1ed9 d\u00f2ng ch\u1ea3y v\u1edbi \u0111\u1ed9 ch\u00ednh x\u00e1c l\u00ean t\u1edbi 0,5%. Ch\u00fang c\u0169ng r\u1ea5t \u0111\u00e1ng tin c\u1eady, c\u00f3 tu\u1ed5i th\u1ecd ho\u1ea1t \u0111\u1ed9ng l\u00e2u d\u00e0i v\u00e0 y\u00eau c\u1ea7u b\u1ea3o tr\u00ec t\u1ed1i thi\u1ec3u. H\u01a1n n\u1eefa, ch\u00fang r\u1ea5t linh ho\u1ea1t v\u00e0 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng v\u1edbi nhi\u1ec1u lo\u1ea1i ch\u1ea5t l\u1ecfng, bao g\u1ed3m n\u01b0\u1edbc, d\u1ea7u v\u00e0 kh\u00ed \u0111\u1ed1t. Ch\u00fang c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng trong \u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u00e1p su\u1ea5t cao, khi\u1ebfn ch\u00fang ph\u00f9 h\u1ee3p \u0111\u1ec3 s\u1eed d\u1ee5ng trong m\u00f4i tr\u01b0\u1eddng c\u00f4ng nghi\u1ec7p kh\u1eafc nghi\u1ec7t.<\/p>\n<figure class=\"wp-block-table\">\n<table>\n<tbody>\n<tr>\n<td>M\u00f4 h\u00ecnh<\/td>\n<td>M\u00e1y \u0111o \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n ti\u1ebft ki\u1ec7m CM-230S<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"2\">Ph\u1ea1m vi<\/td>\n<td>0-200\/2000\/4000\/10000uS\/cm<\/td>\n<\/tr>\n<tr>\n<td>0-100\/1000\/2000\/5000PPM<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1ed9 ch\u00ednh x\u00e1c<\/td>\n<td>1,5 ph\u1ea7n tr\u0103m (FS)<\/td>\n<\/tr>\n<tr>\n<td>Nhi\u1ec7t \u0111\u1ed9. Comp.<\/td>\n<td>B\u00f9 nhi\u1ec7t \u0111\u1ed9 t\u1ef1 \u0111\u1ed9ng d\u1ef1a tr\u00ean 25\u2103<\/td>\n<\/tr>\n<tr>\n<td>Ho\u1ea1t \u0111\u1ed9ng. Nhi\u1ec7t \u0111\u1ed9<\/td>\n<td>B\u00ecnh th\u01b0\u1eddng 0\uff5e50\u2103; Nhi\u1ec7t \u0111\u1ed9 cao 0\uff5e120\u2103<\/td>\n<\/tr>\n<tr>\n<td>C\u1ea3m bi\u1ebfn<\/td>\n<td>Ti\u00eau chu\u1ea9n: ABS C=1.0cm<sup>-1<\/sup> (nh\u1eefng c\u00e1i kh\u00e1c l\u00e0 t\u00f9y ch\u1ecdn)<\/td>\n<\/tr>\n<tr>\n<td>Hi\u1ec3n th\u1ecb<\/td>\n<td>M\u00e0n H\u00ecnh LCD<\/td>\n<\/tr>\n<tr>\n<td>Kh\u00f4ng Ch\u1ec9nh S\u1eeda<\/td>\n<td>Ch\u1ec9nh th\u1ee7 c\u00f4ng cho ph\u1ea1m vi th\u1ea5p 0,05-10ppm \u0110\u1eb7t t\u1eeb ECO<\/td>\n<\/tr>\n<tr>\n<td>Hi\u1ec3n Th\u1ecb \u0110\u01a1n V\u1ecb<\/td>\n<td>uS\/cm ho\u1eb7c PPM<\/td>\n<\/tr>\n<tr>\n<td>S\u1ee9c m\u1ea1nh<\/td>\n<td>AC 220V\u00b110 ph\u1ea7n tr\u0103m 50\/60Hz ho\u1eb7c AC 110V\u00b110 ph\u1ea7n tr\u0103m 50\/60Hz ho\u1eb7c DC24V\/0,5A<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"2\">M\u00f4i tr\u01b0\u1eddng l\u00e0m vi\u1ec7c<\/td>\n<td>Nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng:0\uff5e50\u2103<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i\u226485 ph\u1ea7n tr\u0103m<\/td>\n<\/tr>\n<tr>\n<td>K\u00edch th\u01b0\u1edbc<\/td>\n<td>48\u00d796\u00d7100mm(H\u00d7W\u00d7L)<\/td>\n<\/tr>\n<tr>\n<td>K\u00edch th\u01b0\u1edbc l\u1ed7<\/td>\n<td>45\u00d792mm(H\u00d7W)<\/td>\n<\/tr>\n<tr>\n<td>Ch\u1ebf \u0110\u1ed9 C\u00e0i \u0110\u1eb7t<\/td>\n<td>\u0110\u00e3 nh\u00fang<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n<p>C\u00e1c \u1ee9ng d\u1ee5ng c\u1ee7a c\u1ea3m bi\u1ebfn l\u01b0u l\u01b0\u1ee3ng Hi\u1ec7u \u1ee9ng Hall r\u1ea5t r\u1ed9ng l\u1edbn v\u00e0 \u0111a d\u1ea1ng. Trong ng\u00e0nh c\u00f4ng nghi\u1ec7p \u00f4 t\u00f4, ch\u00fang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111o l\u01b0u l\u01b0\u1ee3ng nhi\u00ean li\u1ec7u v\u00e0 ch\u1ea5t l\u00e0m m\u00e1t trong xe. Th\u00f4ng tin n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t \u0111\u1ed9ng c\u01a1 v\u00e0 ti\u1ebft ki\u1ec7m nhi\u00ean li\u1ec7u. Trong l\u0129nh v\u1ef1c y t\u1ebf, ch\u00fang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u00e1y l\u1ecdc m\u00e1u v\u00e0 m\u00e1y b\u01a1m truy\u1ec1n d\u1ecbch \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o truy\u1ec1n ch\u1ea5t l\u1ecfng ch\u00ednh x\u00e1c. Trong ng\u00e0nh HVAC, ch\u00fang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 theo d\u00f5i d\u00f2ng ch\u1ea5t l\u00e0m l\u1ea1nh trong h\u1ec7 th\u1ed1ng \u0111i\u1ec1u h\u00f2a kh\u00f4ng kh\u00ed. Ch\u00fang c\u0169ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c nh\u00e0 m\u00e1y x\u1eed l\u00fd n\u01b0\u1edbc, nh\u00e0 m\u00e1y l\u1ecdc d\u1ea7u v\u00e0 c\u00e1c c\u01a1 s\u1edf x\u1eed l\u00fd h\u00f3a ch\u1ea5t, v.v.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/chimaytech.net\/wp-content\/uploads\/2024\/05\/Main-061.png\" alt=\"alt-328\" class=\"wp-image-328\" id=\"i328\" \/><\/p>\n<p>T\u00f3m l\u1ea1i, c\u1ea3m bi\u1ebfn l\u01b0u l\u01b0\u1ee3ng Hi\u1ec7u \u1ee9ng Hall l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 m\u1ea1nh m\u1ebd \u0111\u1ec3 \u0111o t\u1ed1c \u0111\u1ed9 d\u00f2ng ch\u1ea5t l\u1ecfng. H\u1ecd t\u1eadn d\u1ee5ng nguy\u00ean l\u00fd Hi\u1ec7u \u1ee9ng Hall \u0111\u1ec3 cung c\u1ea5p c\u00e1c gi\u1ea3i ph\u00e1p \u0111o l\u01b0u l\u01b0\u1ee3ng ch\u00ednh x\u00e1c, \u0111\u00e1ng tin c\u1eady v\u00e0 linh ho\u1ea1t. Ph\u1ea1m vi \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i c\u1ee7a ch\u00fang, t\u1eeb \u00f4 t\u00f4, y t\u1ebf \u0111\u1ebfn c\u00f4ng nghi\u1ec7p, ch\u1ee9ng th\u1ef1c t\u00ednh ti\u1ec7n \u00edch v\u00e0 hi\u1ec7u qu\u1ea3 c\u1ee7a ch\u00fang. Khi c\u00f4ng ngh\u1ec7 ti\u1ebfp t\u1ee5c ph\u00e1t tri\u1ec3n, d\u1ef1 ki\u1ebfn \u200b\u200bkh\u1ea3 n\u0103ng v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a c\u1ea3m bi\u1ebfn l\u01b0u l\u01b0\u1ee3ng Hi\u1ec7u \u1ee9ng Hall s\u1ebd ti\u1ebfp t\u1ee5c m\u1edf r\u1ed9ng, c\u1ee7ng c\u1ed1 th\u00eam v\u1ecb tr\u00ed c\u1ee7a ch\u00fang nh\u01b0 m\u1ed9t c\u00f4ng c\u1ee5 thi\u1ebft y\u1ebfu trong \u0111o l\u01b0u l\u01b0\u1ee3ng ch\u1ea5t l\u1ecfng.<\/p>\n<h1 id=\"the-role-of-hall-effect-flow-sensors-in-modern-technology-wpaicgheading\"><span class=\"ez-toc-section\" id=\"Vai_tro_cua_cam_bien_luu_luong_hieu_ung_Hall_trong_cong_nghe_hien_dai\"><\/span>Vai tr\u00f2 c\u1ee7a c\u1ea3m bi\u1ebfn l\u01b0u l\u01b0\u1ee3ng hi\u1ec7u \u1ee9ng Hall trong c\u00f4ng ngh\u1ec7 hi\u1ec7n \u0111\u1ea1i<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<p>\nC\u1ea3m bi\u1ebfn l\u01b0u l\u01b0\u1ee3ng Hi\u1ec7u \u1ee9ng Hall \u0111\u00e3 n\u1ed5i l\u00ean nh\u01b0 m\u1ed9t th\u00e0nh ph\u1ea7n then ch\u1ed1t trong l\u0129nh v\u1ef1c c\u00f4ng ngh\u1ec7 hi\u1ec7n \u0111\u1ea1i. Nh\u1eefng c\u1ea3m bi\u1ebfn n\u00e0y, \u0111\u01b0\u1ee3c \u0111\u1eb7t t\u00ean theo nguy\u00ean l\u00fd Hi\u1ec7u \u1ee9ng Hall do Edwin Hall ph\u00e1t hi\u1ec7n n\u0103m 1879, \u0111\u00e3 t\u00ecm th\u1ea5y \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u l\u0129nh v\u1ef1c kh\u00e1c nhau, bao g\u1ed3m \u00f4 t\u00f4, t\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00f4ng nghi\u1ec7p v\u00e0 c\u00f4ng ngh\u1ec7 y t\u1ebf. Nguy\u00ean l\u00fd Hi\u1ec7u \u1ee9ng Hall, li\u00ean quan \u0111\u1ebfn vi\u1ec7c t\u1ea1o ra s\u1ef1 ch\u00eanh l\u1ec7ch \u0111i\u1ec7n \u00e1p tr\u00ean m\u1ed9t d\u00e2y d\u1eabn \u0111i\u1ec7n, l\u00e0 kh\u00e1i ni\u1ec7m c\u01a1 b\u1ea3n \u0111\u1eb1ng sau ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u00e1c c\u1ea3m bi\u1ebfn n\u00e0y.<\/p>\n<div class=\"entry-content-asset videofit\"><iframe loading=\"lazy\" title=\"ph controller calibration\" width=\"720\" height=\"405\" src=\"https:\/\/www.youtube.com\/embed\/Q6cj5yVPF0A?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<p>C\u1ea3m bi\u1ebfn l\u01b0u l\u01b0\u1ee3ng hi\u1ec7u \u1ee9ng Hall ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111o t\u1ed1c \u0111\u1ed9 d\u00f2ng ch\u1ea5t l\u1ecfng. Ch\u00fang ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng c\u00e1ch ph\u00e1t hi\u1ec7n nh\u1eefng thay \u0111\u1ed5i trong t\u1eeb tr\u01b0\u1eddng g\u00e2y ra b\u1edfi s\u1ef1 chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a ch\u1ea5t l\u1ecfng trong \u0111\u01b0\u1eddng \u1ed1ng. C\u1ea3m bi\u1ebfn, th\u01b0\u1eddng \u0111\u01b0\u1ee3c g\u1eafn \u1edf b\u00ean ngo\u00e0i \u0111\u01b0\u1eddng \u1ed1ng, t\u1ea1o ra \u0111i\u1ec7n \u00e1p t\u1ef7 l\u1ec7 v\u1edbi t\u1ed1c \u0111\u1ed9 d\u00f2ng ch\u1ea3y. \u0110i\u1ec7n \u00e1p n\u00e0y sau \u0111\u00f3 \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ed5i th\u00e0nh t\u00edn hi\u1ec7u s\u1ed1, t\u00edn hi\u1ec7u n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c x\u1eed l\u00fd v\u00e0 gi\u1ea3i th\u00edch b\u1eb1ng m\u00e1y t\u00ednh ho\u1eb7c b\u1ed9 vi \u0111i\u1ec1u khi\u1ec3n.<\/p>\n<p>\u0110\u1ed9 ch\u00ednh x\u00e1c v\u00e0 \u0111\u1ed9 tin c\u1eady c\u1ee7a c\u1ea3m bi\u1ebfn l\u01b0u l\u01b0\u1ee3ng Hall Effect \u0111\u00e3 khi\u1ebfn ch\u00fang tr\u1edf th\u00e0nh c\u00f4ng c\u1ee5 kh\u00f4ng th\u1ec3 thi\u1ebfu trong nhi\u1ec1u ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c nhau. V\u00ed d\u1ee5, trong l\u0129nh v\u1ef1c \u00f4 t\u00f4, nh\u1eefng c\u1ea3m bi\u1ebfn n\u00e0y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 theo d\u00f5i d\u00f2ng ch\u1ea5t l\u00e0m m\u00e1t trong \u0111\u1ed9ng c\u01a1 v\u00e0 d\u00f2ng nhi\u00ean li\u1ec7u trong h\u1ec7 th\u1ed1ng phun nhi\u00ean li\u1ec7u. B\u1eb1ng c\u00e1ch cung c\u1ea5p d\u1eef li\u1ec7u th\u1eddi gian th\u1ef1c v\u1ec1 t\u1ed1c \u0111\u1ed9 d\u00f2ng ch\u1ea5t l\u1ecfng, nh\u1eefng c\u1ea3m bi\u1ebfn n\u00e0y cho ph\u00e9p c\u00e1c k\u1ef9 s\u01b0 \u00f4 t\u00f4 t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t \u0111\u1ed9ng c\u01a1 v\u00e0 ti\u1ebft ki\u1ec7m nhi\u00ean li\u1ec7u.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/chimaytech.net\/wp-content\/uploads\/2024\/05\/POP-8300-Spec-1.jpg\" alt=\"alt-3214\" class=\"wp-image-3214\" id=\"i3214\" \/><\/p>\n<p>Trong l\u0129nh v\u1ef1c t\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00f4ng nghi\u1ec7p, c\u1ea3m bi\u1ebfn l\u01b0u l\u01b0\u1ee3ng Hi\u1ec7u \u1ee9ng Hall \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c duy tr\u00ec hi\u1ec7u qu\u1ea3 v\u00e0 an to\u00e0n c\u1ee7a c\u00e1c quy tr\u00ecnh kh\u00e1c nhau. Ch\u00fang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 gi\u00e1m s\u00e1t d\u00f2ng ch\u1ea5t l\u1ecfng v\u00e0 kh\u00ed trong \u0111\u01b0\u1eddng \u1ed1ng, t\u1eeb \u0111\u00f3 gi\u00fap ng\u0103n ng\u1eeba r\u00f2 r\u1ec9 v\u00e0 tr\u00e0n. H\u01a1n n\u1eefa, b\u1eb1ng c\u00e1ch cung c\u1ea5p c\u00e1c ph\u00e9p \u0111o ch\u00ednh x\u00e1c v\u1ec1 t\u1ed1c \u0111\u1ed9 d\u00f2ng ch\u1ea3y, c\u00e1c c\u1ea3m bi\u1ebfn n\u00e0y cho ph\u00e9p ng\u01b0\u1eddi v\u1eadn h\u00e0nh c\u00f4ng nghi\u1ec7p ki\u1ec3m so\u00e1t t\u1ed1c \u0111\u1ed9 v\u00e0 th\u1ec3 t\u00edch d\u00f2ng ch\u1ea5t l\u1ecfng, t\u1eeb \u0111\u00f3 t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u qu\u1ea3 ho\u1ea1t \u0111\u1ed9ng c\u1ee7a h\u1ecd.<\/p>\n<p>[nh\u00fang]http:\/\/shchimay.com\/wp-content\/uploads\/2023\/11\/pH8500-ORP-meter-pH-controller-with-RS485.mp4[\/embed]Trong l\u0129nh v\u1ef1c c\u00f4ng ngh\u1ec7 y t\u1ebf, c\u1ea3m bi\u1ebfn l\u01b0u l\u01b0\u1ee3ng Hall Effect \u0111\u00e3 \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng trong nhi\u1ec1u lo\u1ea1i thi\u1ebft b\u1ecb, t\u1eeb m\u00e1y b\u01a1m truy\u1ec1n d\u1ecbch \u0111\u1ebfn m\u00e1y l\u1ecdc m\u00e1u. Nh\u1eefng c\u1ea3m bi\u1ebfn n\u00e0y cung c\u1ea5p c\u00e1c ph\u00e9p \u0111o ch\u00ednh x\u00e1c v\u00e0 \u0111\u00e1ng tin c\u1eady v\u1ec1 t\u1ed1c \u0111\u1ed9 d\u00f2ng ch\u1ea5t l\u1ecfng, t\u1eeb \u0111\u00f3 \u0111\u1ea3m b\u1ea3o cung c\u1ea5p c\u00e1c ph\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec1u tr\u1ecb y t\u1ebf an to\u00e0n v\u00e0 hi\u1ec7u qu\u1ea3. V\u00ed d\u1ee5: trong m\u00e1y b\u01a1m ti\u00eam truy\u1ec1n, c\u1ea3m bi\u1ebfn l\u01b0u l\u01b0\u1ee3ng Hi\u1ec7u \u1ee9ng Hall c\u00f3 th\u1ec3 theo d\u00f5i t\u1ed1c \u0111\u1ed9 truy\u1ec1n thu\u1ed1c \u0111\u1ebfn b\u1ec7nh nh\u00e2n, t\u1eeb \u0111\u00f3 ng\u0103n ng\u1eeba t\u00ecnh tr\u1ea1ng d\u00f9ng qu\u00e1 li\u1ec1u ho\u1eb7c thi\u1ebfu li\u1ec1u.<\/p>\n<p>M\u1eb7c d\u00f9 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i, c\u1ea3m bi\u1ebfn l\u01b0u l\u01b0\u1ee3ng Hi\u1ec7u \u1ee9ng Hall kh\u00f4ng ph\u1ea3i l\u00e0 kh\u00f4ng g\u1eb7p ph\u1ea3i th\u00e1ch th\u1ee9c. M\u1ed9t trong nh\u1eefng th\u00e1ch th\u1ee9c ch\u00ednh l\u00e0 \u0111\u1ed9 nh\u1ea1y c\u1ee7a c\u00e1c c\u1ea3m bi\u1ebfn n\u00e0y v\u1edbi t\u1eeb tr\u01b0\u1eddng b\u00ean ngo\u00e0i, c\u00f3 th\u1ec3 c\u1ea3n tr\u1edf ho\u1ea1t \u0111\u1ed9ng c\u1ee7a ch\u00fang. Tuy nhi\u00ean, nh\u1eefng ti\u1ebfn b\u1ed9 trong thi\u1ebft k\u1ebf c\u1ea3m bi\u1ebfn v\u00e0 v\u1eadt li\u1ec7u \u0111\u00e3 d\u1eabn \u0111\u1ebfn s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a c\u1ea3m bi\u1ebfn l\u01b0u l\u01b0\u1ee3ng Hi\u1ec7u \u1ee9ng Hall c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng nhi\u1ec5u t\u1eeb, t\u1eeb \u0111\u00f3 n\u00e2ng cao \u0111\u1ed9 tin c\u1eady v\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a ch\u00fang.<\/p>\n<p>T\u00f3m l\u1ea1i, c\u1ea3m bi\u1ebfn l\u01b0u l\u01b0\u1ee3ng Hi\u1ec7u \u1ee9ng Hall \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t ph\u1ea7n kh\u00f4ng th\u1ec3 thi\u1ebfu c\u1ee7a c\u00f4ng ngh\u1ec7 hi\u1ec7n \u0111\u1ea1i, nh\u1edd v\u00e0o \u0111\u1ed9 ch\u00ednh x\u00e1c, \u0111\u1ed9 tin c\u1eady v\u00e0 t\u00ednh linh ho\u1ea1t c\u1ee7a ch\u00fang. B\u1eb1ng c\u00e1ch cung c\u1ea5p d\u1eef li\u1ec7u th\u1eddi gian th\u1ef1c v\u1ec1 t\u1ed1c \u0111\u1ed9 d\u00f2ng ch\u1ea5t l\u1ecfng, c\u00e1c c\u1ea3m bi\u1ebfn n\u00e0y \u0111ang gi\u00fap t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t v\u00e0 hi\u1ec7u qu\u1ea3 c\u1ee7a c\u00e1c h\u1ec7 th\u1ed1ng v\u00e0 quy tr\u00ecnh kh\u00e1c nhau, t\u1eeb \u0111\u1ed9ng c\u01a1 \u00f4 t\u00f4, \u0111\u01b0\u1eddng \u1ed1ng c\u00f4ng nghi\u1ec7p \u0111\u1ebfn thi\u1ebft b\u1ecb y t\u1ebf. Khi c\u00f4ng ngh\u1ec7 ti\u1ebfp t\u1ee5c ph\u00e1t tri\u1ec3n, d\u1ef1 ki\u1ebfn \u200b\u200bvai tr\u00f2 c\u1ee7a c\u1ea3m bi\u1ebfn l\u01b0u l\u01b0\u1ee3ng Hi\u1ec7u \u1ee9ng Hall s\u1ebd ti\u1ebfp t\u1ee5c m\u1edf r\u1ed9ng, m\u1edf ra nh\u1eefng kh\u1ea3 n\u0103ng m\u1edbi cho \u1ee9ng d\u1ee5ng c\u1ee7a ch\u00fang. <\/p>\n","protected":false},"excerpt":{"rendered":"<p>T\u00ecm hi\u1ec3u ch\u1ee9c n\u0103ng v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a c\u1ea3m bi\u1ebfn l\u01b0u l\u01b0\u1ee3ng hi\u1ec7u \u1ee9ng Hall C\u1ea3m bi\u1ebfn l\u01b0u l\u01b0\u1ee3ng Hi\u1ec7u \u1ee9ng Hall l\u00e0 m\u1ed9t c\u1ea3i ti\u1ebfn c\u00f4ng ngh\u1ec7 quan tr\u1ecdng \u0111\u00e3 c\u00e1ch m\u1ea1ng h\u00f3a vi\u1ec7c \u0111o t\u1ed1c \u0111\u1ed9 d\u00f2ng ch\u1ea5t l\u1ecfng trong c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c nhau. Nh\u1eefng c\u1ea3m bi\u1ebfn n\u00e0y, \u0111\u01b0\u1ee3c \u0111\u1eb7t t\u00ean&#8230;<\/p>\n","protected":false},"author":1,"featured_media":18622,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false},"categories":[202],"tags":[],"translation":{"provider":"WPGlobus","version":"2.12.0","language":"vi","enabled_languages":["en","es","de","fr","ru","pt","ar","ja","ko","it","id","hi","th","vi","tr"],"languages":{"en":{"title":true,"content":true,"excerpt":false},"es":{"title":true,"content":true,"excerpt":false},"de":{"title":true,"content":true,"excerpt":false},"fr":{"title":true,"content":true,"excerpt":false},"ru":{"title":true,"content":true,"excerpt":false},"pt":{"title":false,"content":false,"excerpt":false},"ar":{"title":false,"content":false,"excerpt":false},"ja":{"title":true,"content":true,"excerpt":false},"ko":{"title":true,"content":true,"excerpt":false},"it":{"title":true,"content":true,"excerpt":false},"id":{"title":true,"content":true,"excerpt":false},"hi":{"title":false,"content":false,"excerpt":false},"th":{"title":true,"content":true,"excerpt":false},"vi":{"title":true,"content":true,"excerpt":false},"tr":{"title":false,"content":false,"excerpt":false}}},"_links":{"self":[{"href":"https:\/\/chimaytech.net\/vi\/wp-json\/wp\/v2\/posts\/18619"}],"collection":[{"href":"https:\/\/chimaytech.net\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/chimaytech.net\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/chimaytech.net\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/chimaytech.net\/vi\/wp-json\/wp\/v2\/comments?post=18619"}],"version-history":[{"count":0,"href":"https:\/\/chimaytech.net\/vi\/wp-json\/wp\/v2\/posts\/18619\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/chimaytech.net\/vi\/wp-json\/wp\/v2\/media\/18622"}],"wp:attachment":[{"href":"https:\/\/chimaytech.net\/vi\/wp-json\/wp\/v2\/media?parent=18619"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/chimaytech.net\/vi\/wp-json\/wp\/v2\/categories?post=18619"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/chimaytech.net\/vi\/wp-json\/wp\/v2\/tags?post=18619"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}