{"id":17922,"date":"2024-05-20T11:40:23","date_gmt":"2024-05-20T03:40:23","guid":{"rendered":"https:\/\/chimaytech.net\/?p=17922"},"modified":"2024-05-21T11:57:19","modified_gmt":"2024-05-21T03:57:19","slug":"dissolved-oxygen-sensor-with-microcontroller","status":"publish","type":"post","link":"https:\/\/chimaytech.net\/vi\/dissolved-oxygen-sensor-with-microcontroller\/","title":{"rendered":"c\u1ea3m bi\u1ebfn oxy h\u00f2a tan c\u00f3 vi \u0111i\u1ec1u khi\u1ec3n"},"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\/dissolved-oxygen-sensor-with-microcontroller\/#Loi_ich_cua_viec_su_dung_cam_bien_oxy_hoa_tan_voi_bo_vi_dieu_khien\" title=\"L\u1ee3i \u00edch c\u1ee7a vi\u1ec7c s\u1eed d\u1ee5ng c\u1ea3m bi\u1ebfn oxy h\u00f2a tan v\u1edbi b\u1ed9 vi \u0111i\u1ec1u khi\u1ec3n\">L\u1ee3i \u00edch c\u1ee7a vi\u1ec7c s\u1eed d\u1ee5ng c\u1ea3m bi\u1ebfn oxy h\u00f2a tan v\u1edbi b\u1ed9 vi \u0111i\u1ec1u khi\u1ec3n<\/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\/dissolved-oxygen-sensor-with-microcontroller\/#Cach_ket_noi_cam_bien_oxy_hoa_tan_voi_vi_dieu_khien\" title=\"C\u00e1ch k\u1ebft n\u1ed1i c\u1ea3m bi\u1ebfn oxy h\u00f2a tan v\u1edbi vi \u0111i\u1ec1u khi\u1ec3n\">C\u00e1ch k\u1ebft n\u1ed1i c\u1ea3m bi\u1ebfn oxy h\u00f2a tan v\u1edbi vi \u0111i\u1ec1u khi\u1ec3n<\/a><\/li><\/ul><\/nav><\/div>\n<h1 id=\"benefits-of-using-dissolved-oxygen-sensors-with-microcontrollers-wpaicgheading\"><span class=\"ez-toc-section\" id=\"Loi_ich_cua_viec_su_dung_cam_bien_oxy_hoa_tan_voi_bo_vi_dieu_khien\"><\/span>L\u1ee3i \u00edch c\u1ee7a vi\u1ec7c s\u1eed d\u1ee5ng c\u1ea3m bi\u1ebfn oxy h\u00f2a tan v\u1edbi b\u1ed9 vi \u0111i\u1ec1u khi\u1ec3n<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<p>\nC\u1ea3m bi\u1ebfn oxy h\u00f2a tan l\u00e0 c\u00f4ng c\u1ee5 thi\u1ebft y\u1ebfu trong nhi\u1ec1u ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c nhau, bao g\u1ed3m gi\u00e1m s\u00e1t m\u00f4i tr\u01b0\u1eddng, nu\u00f4i tr\u1ed3ng th\u1ee7y s\u1ea3n v\u00e0 x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i. Nh\u1eefng c\u1ea3m bi\u1ebfn n\u00e0y \u0111o l\u01b0\u1ee3ng oxy h\u00f2a tan trong n\u01b0\u1edbc, cung c\u1ea5p d\u1eef li\u1ec7u c\u00f3 gi\u00e1 tr\u1ecb \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc v\u00e0 s\u1ee9c kh\u1ecfe c\u1ee7a h\u1ec7 sinh th\u00e1i d\u01b0\u1edbi n\u01b0\u1edbc. Khi k\u1ebft h\u1ee3p v\u1edbi b\u1ed9 vi \u0111i\u1ec1u khi\u1ec3n, c\u1ea3m bi\u1ebfn oxy h\u00f2a tan th\u1eadm ch\u00ed c\u00f2n mang l\u1ea1i nhi\u1ec1u l\u1ee3i \u00edch v\u00e0 kh\u1ea3 n\u0103ng h\u01a1n.<\/p>\n<p>M\u1ed9t trong nh\u1eefng \u01b0u \u0111i\u1ec3m ch\u00ednh c\u1ee7a vi\u1ec7c s\u1eed d\u1ee5ng c\u1ea3m bi\u1ebfn oxy h\u00f2a tan v\u1edbi b\u1ed9 vi \u0111i\u1ec1u khi\u1ec3n l\u00e0 kh\u1ea3 n\u0103ng t\u1ef1 \u0111\u1ed9ng thu th\u1eadp v\u00e0 ph\u00e2n t\u00edch d\u1eef li\u1ec7u. B\u1ed9 vi \u0111i\u1ec1u khi\u1ec3n c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u1eadp tr\u00ecnh \u0111\u1ec3 \u0111\u1ecdc d\u1eef li\u1ec7u \u0111\u1ec1u \u0111\u1eb7n, l\u01b0u tr\u1eef d\u1eef li\u1ec7u v\u00e0 th\u1eadm ch\u00ed truy\u1ec1n d\u1eef li\u1ec7u kh\u00f4ng d\u00e2y \u0111\u1ebfn c\u01a1 s\u1edf d\u1eef li\u1ec7u trung t\u00e2m \u0111\u1ec3 ph\u00e2n t\u00edch th\u00eam. Vi\u1ec7c t\u1ef1 \u0111\u1ed9ng h\u00f3a n\u00e0y kh\u00f4ng ch\u1ec9 ti\u1ebft ki\u1ec7m th\u1eddi gian v\u00e0 c\u00f4ng s\u1ee9c m\u00e0 c\u00f2n \u0111\u1ea3m b\u1ea3o thu th\u1eadp d\u1eef li\u1ec7u ch\u00ednh x\u00e1c v\u00e0 nh\u1ea5t qu\u00e1n h\u01a1n.<\/p>\n<p>H\u01a1n n\u1eefa, vi\u1ec7c t\u00edch h\u1ee3p b\u1ed9 vi \u0111i\u1ec1u khi\u1ec3n cho ph\u00e9p theo d\u00f5i n\u1ed3ng \u0111\u1ed9 oxy h\u00f2a tan theo th\u1eddi gian th\u1ef1c. V\u1edbi vi\u1ec7c thu th\u1eadp v\u00e0 ph\u00e2n t\u00edch d\u1eef li\u1ec7u li\u00ean t\u1ee5c, ng\u01b0\u1eddi v\u1eadn h\u00e0nh c\u00f3 th\u1ec3 nhanh ch\u00f3ng x\u00e1c \u0111\u1ecbnh m\u1ecdi bi\u1ebfn \u0111\u1ed9ng ho\u1eb7c xu h\u01b0\u1edbng v\u1ec1 n\u1ed3ng \u0111\u1ed9 oxy, cho ph\u00e9p h\u1ecd th\u1ef1c hi\u1ec7n h\u00e0nh \u0111\u1ed9ng ngay l\u1eadp t\u1ee9c \u0111\u1ec3 ng\u0103n ch\u1eb7n m\u1ecdi t\u00e1c \u0111\u1ed9ng b\u1ea5t l\u1ee3i \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc ho\u1eb7c \u0111\u1eddi s\u1ed1ng th\u1ee7y sinh. Kh\u1ea3 n\u0103ng gi\u00e1m s\u00e1t th\u1eddi gian th\u1ef1c n\u00e0y \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng trong c\u00e1c ng\u00e0nh c\u1ea7n ph\u1ea3n \u1ee9ng nhanh v\u1edbi c\u00e1c \u0111i\u1ec1u ki\u1ec7n thay \u0111\u1ed5i.<\/p>\n<figure class=\"wp-block-table\">\n<table>\n<tbody>\n<tr>\n<td>S\u1ed1 m\u1eabu<\/td>\n<td colspan=\"2\">B\u1ed9 \u0111i\u1ec1u khi\u1ec3n tr\u1ef1c tuy\u1ebfn \u0111\u1ed9 d\u1eabn \/ n\u1ed3ng \u0111\u1ed9 c\u1ea3m \u1ee9ng CIT-8800<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"6\">Ph\u1ea1m vi \u0111o<\/td>\n<td>\u0110\u1ed9 d\u1eabn \u0111i\u1ec7n<\/td>\n<td>0,00\u03bcS\/cm ~ 2000mS\/cm<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"3\">T\u1eadp trung<\/td>\n<td>1.NaOH\uff0c\uff080-15\uff09 ph\u1ea7n tr\u0103m ho\u1eb7c\uff0825-50\uff09 ph\u1ea7n tr\u0103m \uff1b<\/td>\n<\/tr>\n<tr>\n<td>2.HNO3\uff08l\u01b0u \u00fd kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n c\u1ee7a c\u1ea3m bi\u1ebfn\uff09\uff080-25\uff09 ph\u1ea7n tr\u0103m ho\u1eb7c\uff0836-82\uff09 ph\u1ea7n tr\u0103m \uff1b<\/td>\n<\/tr>\n<tr>\n<td>3.\u0110\u01b0\u1eddng cong n\u1ed3ng \u0111\u1ed9 do ng\u01b0\u1eddi d\u00f9ng x\u00e1c \u0111\u1ecbnh.<\/td>\n<\/tr>\n<tr>\n<td>TDS<\/td>\n<td>0,00ppm~1000ppt<\/td>\n<\/tr>\n<tr>\n<td>Nhi\u1ec7t \u0111\u1ed9.<\/td>\n<td>\uff080.0 ~ 120.0\uff09\u2103<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"4\">\u0110\u1ed9 ph\u00e2n gi\u1ea3i<\/td>\n<td>\u0110\u1ed9 d\u1eabn \u0111i\u1ec7n<\/td>\n<td>0,01\u03bcS\/cm<\/td>\n<\/tr>\n<tr>\n<td>T\u1eadp trung<\/td>\n<td>0.01%<\/td>\n<\/tr>\n<tr>\n<td>TDS<\/td>\n<td>0,01ppm<\/td>\n<\/tr>\n<tr>\n<td>Nhi\u1ec7t \u0111\u1ed9.<\/td>\n<td>0,1\u2103<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"5\">\u0110\u1ed9 ch\u00ednh x\u00e1c<\/td>\n<td rowspan=\"3\">\u0110\u1ed9 d\u1eabn \u0111i\u1ec7n<\/td>\n<td>0\u03bcS\/cm ~1000\u03bcS\/cm \u00b110\u03bcS\/cm<\/td>\n<\/tr>\n<tr>\n<td>1 mS\/cm~500 mS\/cm \u00b11,0 ph\u1ea7n tr\u0103m <\/td>\n<\/tr>\n<tr>\n<td>500mS\/cm~2000 mS\/cm \u00b11,0 ph\u1ea7n tr\u0103m <\/td>\n<\/tr>\n<tr>\n<td>TDS<\/td>\n<td>1,5 c\u1ea5p<\/td>\n<\/tr>\n<tr>\n<td>Nhi\u1ec7t \u0111\u1ed9.<\/td>\n<td>\u00b10.5\u2103<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"2\">Nhi\u1ec7t \u0111\u1ed9. b\u1ed3i th\u01b0\u1eddng<\/td>\n<td>ph\u1ea7n t\u1eed<\/td>\n<td>Pt1000<\/td>\n<\/tr>\n<tr>\n<td>ph\u1ea1m vi<\/td>\n<td>\uff080.0~120.0\uff09\u2103 b\u00f9 tuy\u1ebfn t\u00ednh<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"4\">\uff084~20\uff09mA D\u00f2ng \u0111i\u1ec7n \u0111\u1ea7u ra<\/td>\n<td>k\u00eanh<\/td>\n<td>K\u00eanh \u0111\u00f4i<\/td>\n<\/tr>\n<tr>\n<td>t\u00ednh n\u0103ng<\/td>\n<td>C\u00e1ch ly, c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh, \u0111\u1ea3o ng\u01b0\u1ee3c, \u0111\u1ea7u ra 4-20MA, ch\u1ebf \u0111\u1ed9 thi\u1ebft b\u1ecb\/m\u00e1y ph\u00e1t.<\/td>\n<\/tr>\n<tr>\n<td>\u0110i\u1ec7n tr\u1edf v\u00f2ng l\u1eb7p<\/td>\n<td>400\u03a9\uff08Max\uff09\uff0cDC 24V<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1ed9 ph\u00e2n gi\u1ea3i<\/td>\n<td>\u00b10.1mA<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"5\">Ki\u1ec3m so\u00e1t li\u00ean h\u1ec7<\/td>\n<td>K\u00eanh<\/td>\n<td>Ba k\u00eanh<\/td>\n<\/tr>\n<tr>\n<td>Li\u00ean h\u1ec7<\/td>\n<td>\u0110\u1ea7u ra r\u01a1le quang \u0111i\u1ec7n<\/td>\n<\/tr>\n<tr>\n<td>C\u00f3 th\u1ec3 l\u1eadp tr\u00ecnh<\/td>\n<td>C\u00f3 th\u1ec3 l\u1eadp tr\u00ecnh \uff08 nhi\u1ec7t \u0111\u1ed9 \u3001\u0111\u1ed9 d\u1eabn\/n\u1ed3ng \u0111\u1ed9\/TDS\u3001th\u1eddi gian\uff09\u0111\u1ea7u ra<\/td>\n<\/tr>\n<tr>\n<td>T\u00ednh n\u0103ng<\/td>\n<td>C\u00f3 th\u1ec3 c\u00e0i \u0111\u1eb7t nhi\u1ec7t \u0111\u1ed9\u3001\u0111\u1ed9 d\u1eabn\/n\u1ed3ng \u0111\u1ed9\/TDS\u3001 \u0111\u1ecbnh th\u1eddi gian l\u1ef1a ch\u1ecdn NO\/NC\/ PID<\/td>\n<\/tr>\n<tr>\n<td>T\u1ea3i \u0111i\u1ec7n tr\u1edf<\/td>\n<td>50mA\uff08Max\uff09\uff0cAC\/DC 30V\uff08Max\uff09<\/td>\n<\/tr>\n<tr>\n<td>Giao ti\u1ebfp d\u1eef li\u1ec7u<\/td>\n<td colspan=\"2\">Giao th\u1ee9c RS485,MODBUS<\/td>\n<\/tr>\n<tr>\n<td>Ngu\u1ed3n \u0111i\u1ec7n<\/td>\n<td colspan=\"2\">DC 24V\u00b14V<\/td>\n<\/tr>\n<tr>\n<td>Ti\u00eau th\u1ee5<\/td>\n<td colspan=\"2\">5.5W<\/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\uff1a\uff080~50\uff09\u2103 \u0110\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i\uff1a\u226485 ph\u1ea7n tr\u0103m RH(kh\u00f4ng ng\u01b0ng t\u1ee5 )<\/td>\n<\/tr>\n<tr>\n<td>B\u1ed9 nh\u1edb<\/td>\n<td colspan=\"2\">Nhi\u1ec7t \u0111\u1ed9\uff1a(-20~60)\u2103 \u0110\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i\uff1a\u226485 ph\u1ea7n tr\u0103m RH(kh\u00f4ng ng\u01b0ng t\u1ee5)<\/td>\n<\/tr>\n<tr>\n<td>M\u1ee9c \u0111\u1ed9 b\u1ea3o v\u1ec7<\/td>\n<td colspan=\"2\">IP65\uff08c\u00f3 n\u1eafp sau\uff09<\/td>\n<\/tr>\n<tr>\n<td>K\u00edch th\u01b0\u1edbc ph\u00e1c th\u1ea3o<\/td>\n<td colspan=\"2\">96mm\u00d796 mm\u00d794mm (H\u00d7W\u00d7D)<\/td>\n<\/tr>\n<tr>\n<td>K\u00edch th\u01b0\u1edbc l\u1ed7<\/td>\n<td colspan=\"2\">91mm\u00d791mm(H\u00d7W)<\/td>\n<\/tr>\n<tr>\n<td>C\u00e0i \u0111\u1eb7t<\/td>\n<td colspan=\"2\">G\u1eafn b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n, l\u1eafp \u0111\u1eb7t nhanh<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n<p>\nM\u1ed9t l\u1ee3i \u00edch kh\u00e1c c\u1ee7a vi\u1ec7c s\u1eed d\u1ee5ng c\u1ea3m bi\u1ebfn oxy h\u00f2a tan v\u1edbi b\u1ed9 vi \u0111i\u1ec1u khi\u1ec3n l\u00e0 kh\u1ea3 n\u0103ng hi\u1ec7u ch\u1ec9nh v\u00e0 \u0111i\u1ec1u ch\u1ec9nh c\u1ea3m bi\u1ebfn t\u1eeb xa. B\u1ed9 vi \u0111i\u1ec1u khi\u1ec3n c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u1eadp tr\u00ecnh \u0111\u1ec3 hi\u1ec7u ch\u1ec9nh c\u1ea3m bi\u1ebfn m\u1ed9t c\u00e1ch t\u1ef1 \u0111\u1ed9ng ho\u1eb7c cho ph\u00e9p ng\u01b0\u1eddi v\u1eadn h\u00e0nh \u0111i\u1ec1u ch\u1ec9nh c\u00e0i \u0111\u1eb7t hi\u1ec7u chu\u1ea9n t\u1eeb xa. T\u00ednh n\u0103ng n\u00e0y \u0111\u1ea3m b\u1ea3o c\u1ea3m bi\u1ebfn lu\u00f4n ch\u00ednh x\u00e1c v\u00e0 \u0111\u00e1ng tin c\u1eady theo th\u1eddi gian, gi\u1ea3m nhu c\u1ea7u hi\u1ec7u chu\u1ea9n v\u00e0 b\u1ea3o tr\u00ec th\u1ee7 c\u00f4ng.<\/p>\n<p>Ngo\u00e0i t\u1ef1 \u0111\u1ed9ng h\u00f3a v\u00e0 gi\u00e1m s\u00e1t th\u1eddi gian th\u1ef1c, vi\u1ec7c t\u00edch h\u1ee3p b\u1ed9 vi \u0111i\u1ec1u khi\u1ec3n v\u1edbi c\u1ea3m bi\u1ebfn oxy h\u00f2a tan c\u0169ng m\u1edf ra kh\u1ea3 n\u0103ng v\u1ec1 d\u1eef li\u1ec7u tr\u1ef1c quan v\u00e0 ph\u00e2n t\u00edch. B\u1ed9 vi \u0111i\u1ec1u khi\u1ec3n c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u1eadp tr\u00ecnh \u0111\u1ec3 hi\u1ec3n th\u1ecb d\u1eef li\u1ec7u \u1edf nhi\u1ec1u \u0111\u1ecbnh d\u1ea1ng kh\u00e1c nhau, ch\u1eb3ng h\u1ea1n nh\u01b0 \u0111\u1ed3 th\u1ecb ho\u1eb7c bi\u1ec3u \u0111\u1ed3, gi\u00fap ng\u01b0\u1eddi v\u1eadn h\u00e0nh di\u1ec5n gi\u1ea3i v\u00e0 ph\u00e2n t\u00edch d\u1eef li\u1ec7u d\u1ec5 d\u00e0ng h\u01a1n. Kh\u1ea3 n\u0103ng tr\u1ef1c quan h\u00f3a n\u00e0y cho ph\u00e9p \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh t\u1ed1t h\u01a1n v\u00e0 qu\u1ea3n l\u00fd ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc hi\u1ec7u qu\u1ea3 h\u01a1n.<\/p>\n<div class=\"entry-content-asset videofit\"><iframe loading=\"lazy\" title=\"what is Inductive TDS meter\/conductivity controller (chimay@chimaytech.com)\" width=\"720\" height=\"405\" src=\"https:\/\/www.youtube.com\/embed\/8z8rrZHhUGM?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>H\u01a1n n\u1eefa, vi\u1ec7c s\u1eed d\u1ee5ng b\u1ed9 vi \u0111i\u1ec1u khi\u1ec3n c\u00f3 c\u1ea3m bi\u1ebfn oxy h\u00f2a tan cho ph\u00e9p th\u1ef1c hi\u1ec7n c\u00e1c chi\u1ebfn l\u01b0\u1ee3c ki\u1ec3m so\u00e1t n\u00e2ng cao. V\u00ed d\u1ee5, b\u1ed9 vi \u0111i\u1ec1u khi\u1ec3n c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u1eadp tr\u00ecnh \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh m\u1ee9c \u0111\u1ed9 s\u1ee5c kh\u00ed trong h\u1ec7 th\u1ed1ng nu\u00f4i tr\u1ed3ng th\u1ee7y s\u1ea3n d\u1ef1a tr\u00ean ch\u1ec9 s\u1ed1 oxy h\u00f2a tan, \u0111\u1ea3m b\u1ea3o \u0111i\u1ec1u ki\u1ec7n t\u1ed1i \u01b0u cho c\u00e1 ho\u1eb7c c\u00e1c sinh v\u1eadt th\u1ee7y sinh kh\u00e1c. M\u1ee9c \u0111\u1ed9 t\u1ef1 \u0111\u1ed9ng h\u00f3a v\u00e0 ki\u1ec3m so\u00e1t n\u00e0y kh\u00f4ng ch\u1ec9 n\u00e2ng cao hi\u1ec7u qu\u1ea3 m\u00e0 c\u00f2n gi\u00fap t\u1ed1i \u01b0u h\u00f3a vi\u1ec7c s\u1eed d\u1ee5ng t\u00e0i nguy\u00ean v\u00e0 gi\u1ea3m chi ph\u00ed v\u1eadn h\u00e0nh.<\/p>\n<p>\n<img decoding=\"async\" src=\"https:\/\/chimaytech.net\/wp-content\/uploads\/2024\/05\/RO-Controller-ROS-2210-2-1.png\" alt=\"alt-6911\" class=\"wp-image-6911\" id=\"i6911\" \/><br \/>\nNh\u00ecn chung, l\u1ee3i \u00edch c\u1ee7a vi\u1ec7c s\u1eed d\u1ee5ng c\u1ea3m bi\u1ebfn oxy h\u00f2a tan v\u1edbi b\u1ed9 vi \u0111i\u1ec1u khi\u1ec3n l\u00e0 r\u1ea5t nhi\u1ec1u v\u00e0 \u0111\u00e1ng k\u1ec3. T\u1eeb t\u1ef1 \u0111\u1ed9ng h\u00f3a v\u00e0 gi\u00e1m s\u00e1t th\u1eddi gian th\u1ef1c \u0111\u1ebfn c\u00e1c chi\u1ebfn l\u01b0\u1ee3c hi\u1ec7u chu\u1ea9n v\u00e0 \u0111i\u1ec1u khi\u1ec3n n\u00e2ng cao t\u1eeb xa, vi\u1ec7c t\u00edch h\u1ee3p c\u00e1c c\u00f4ng ngh\u1ec7 n\u00e0y mang l\u1ea1i nhi\u1ec1u l\u1ee3i \u00edch cho c\u00e1c ng\u00e0nh d\u1ef1a v\u00e0o d\u1eef li\u1ec7u ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc ch\u00ednh x\u00e1c v\u00e0 \u0111\u00e1ng tin c\u1eady. B\u1eb1ng c\u00e1ch khai th\u00e1c s\u1ee9c m\u1ea1nh c\u1ee7a b\u1ed9 vi \u0111i\u1ec1u khi\u1ec3n, ng\u01b0\u1eddi v\u1eadn h\u00e0nh c\u00f3 th\u1ec3 n\u00e2ng cao kh\u1ea3 n\u0103ng gi\u00e1m s\u00e1t, c\u1ea3i thi\u1ec7n vi\u1ec7c ra quy\u1ebft \u0111\u1ecbnh v\u00e0 cu\u1ed1i c\u00f9ng l\u00e0 \u0111\u1ea3m b\u1ea3o s\u1ee9c kh\u1ecfe v\u00e0 t\u00ednh b\u1ec1n v\u1eefng c\u1ee7a h\u1ec7 sinh th\u00e1i d\u01b0\u1edbi n\u01b0\u1edbc.<\/p>\n<h1 id=\"how-to-interface-a-dissolved-oxygen-sensor-with-a-microcontroller-wpaicgheading\"><span class=\"ez-toc-section\" id=\"Cach_ket_noi_cam_bien_oxy_hoa_tan_voi_vi_dieu_khien\"><\/span>C\u00e1ch k\u1ebft n\u1ed1i c\u1ea3m bi\u1ebfn oxy h\u00f2a tan v\u1edbi vi \u0111i\u1ec1u khi\u1ec3n<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<p>\nC\u1ea3m bi\u1ebfn oxy h\u00f2a tan l\u00e0 c\u00f4ng c\u1ee5 thi\u1ebft y\u1ebfu trong nhi\u1ec1u ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c nhau, bao g\u1ed3m gi\u00e1m s\u00e1t m\u00f4i tr\u01b0\u1eddng, nu\u00f4i tr\u1ed3ng th\u1ee7y s\u1ea3n v\u00e0 x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i. Nh\u1eefng c\u1ea3m bi\u1ebfn n\u00e0y \u0111o l\u01b0\u1ee3ng oxy h\u00f2a tan trong ch\u1ea5t l\u1ecfng, cung c\u1ea5p d\u1eef li\u1ec7u c\u00f3 gi\u00e1 tr\u1ecb \u0111\u1ec3 duy tr\u00ec c\u00e1c \u0111i\u1ec1u ki\u1ec7n t\u1ed1i \u01b0u cho \u0111\u1eddi s\u1ed1ng th\u1ee7y sinh ho\u1eb7c c\u00e1c quy tr\u00ecnh c\u00f4ng nghi\u1ec7p. Trong b\u00e0i vi\u1ebft n\u00e0y, ch\u00fang ta s\u1ebd th\u1ea3o lu\u1eadn c\u00e1ch k\u1ebft n\u1ed1i c\u1ea3m bi\u1ebfn oxy h\u00f2a tan v\u1edbi b\u1ed9 vi \u0111i\u1ec1u khi\u1ec3n \u0111\u1ec3 \u0111o v\u00e0 theo d\u00f5i ch\u00ednh x\u00e1c m\u1ee9c oxy h\u00f2a tan.<\/p>\n<div class=\"entry-content-asset videofit\"><iframe loading=\"lazy\" title=\"industrial ro controller introduction\" width=\"720\" height=\"405\" src=\"https:\/\/www.youtube.com\/embed\/pVT8_X616O0?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>\u0110\u1ec3 b\u1eaft \u0111\u1ea7u, \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i hi\u1ec3u c\u00e1c nguy\u00ean t\u1eafc c\u01a1 b\u1ea3n v\u1ec1 c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u1ea3m bi\u1ebfn oxy h\u00f2a tan. Nh\u1eefng c\u1ea3m bi\u1ebfn n\u00e0y th\u01b0\u1eddng s\u1eed d\u1ee5ng t\u1ebf b\u00e0o \u0111i\u1ec7n h\u00f3a \u0111\u1ec3 \u0111o n\u1ed3ng \u0111\u1ed9 oxy trong m\u1eabu ch\u1ea5t l\u1ecfng. C\u1ea3m bi\u1ebfn bao g\u1ed3m c\u1ef1c \u00e2m v\u00e0 c\u1ef1c d\u01b0\u01a1ng \u0111\u01b0\u1ee3c ng\u0103n c\u00e1ch b\u1eb1ng dung d\u1ecbch \u0111i\u1ec7n ph\u00e2n. Khi c\u00e1c ph\u00e2n t\u1eed oxy ti\u1ebfp x\u00fac v\u1edbi c\u1ef1c \u00e2m, ch\u00fang b\u1ecb kh\u1eed th\u00e0nh c\u00e1c ion hydroxit. Ph\u1ea3n \u1ee9ng kh\u1eed n\u00e0y t\u1ea1o ra d\u00f2ng \u0111i\u1ec7n t\u1ef7 l\u1ec7 thu\u1eadn v\u1edbi n\u1ed3ng \u0111\u1ed9 oxy trong m\u1eabu.<\/p>\n<p>\u0110\u1ec3 k\u1ebft n\u1ed1i c\u1ea3m bi\u1ebfn oxy h\u00f2a tan v\u1edbi b\u1ed9 vi \u0111i\u1ec1u khi\u1ec3n, b\u1ea1n s\u1ebd c\u1ea7n m\u1ed9t m\u00f4-\u0111un c\u1ea3m bi\u1ebfn bao g\u1ed3m t\u1ebf b\u00e0o \u0111i\u1ec7n h\u00f3a v\u00e0 m\u1ea1ch \u0111i\u1ec1u h\u00f2a t\u00edn hi\u1ec7u. M\u1ea1ch \u0111i\u1ec1u h\u00f2a t\u00edn hi\u1ec7u khu\u1ebfch \u0111\u1ea1i d\u00f2ng \u0111i\u1ec7n do t\u1ebf b\u00e0o \u0111i\u1ec7n h\u00f3a t\u1ea1o ra v\u00e0 chuy\u1ec3n n\u00f3 th\u00e0nh t\u00edn hi\u1ec7u \u0111i\u1ec7n \u00e1p m\u00e0 vi \u0111i\u1ec1u khi\u1ec3n c\u00f3 th\u1ec3 \u0111\u1ecdc \u0111\u01b0\u1ee3c. M\u1ed9t s\u1ed1 m\u00f4-\u0111un c\u1ea3m bi\u1ebfn c\u00f2n bao g\u1ed3m c\u1ea3m bi\u1ebfn nhi\u1ec7t \u0111\u1ed9 \u0111\u1ec3 b\u00f9 \u0111\u1eafp cho nh\u1eefng thay \u0111\u1ed5i v\u1ec1 nhi\u1ec7t \u0111\u1ed9 c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a ph\u00e9p \u0111o oxy.<\/p>\n<p>Sau khi c\u00f3 m\u00f4-\u0111un c\u1ea3m bi\u1ebfn, b\u1ea1n c\u00f3 th\u1ec3 k\u1ebft n\u1ed1i n\u00f3 v\u1edbi b\u1ed9 vi \u0111i\u1ec1u khi\u1ec3n b\u1eb1ng giao th\u1ee9c truy\u1ec1n th\u00f4ng th\u00edch h\u1ee3p, ch\u1eb3ng h\u1ea1n nh\u01b0 I2C ho\u1eb7c UART. Sau \u0111\u00f3, b\u1ed9 vi \u0111i\u1ec1u khi\u1ec3n s\u1ebd \u0111\u1ecdc t\u00edn hi\u1ec7u \u0111i\u1ec7n \u00e1p t\u1eeb m\u00f4-\u0111un c\u1ea3m bi\u1ebfn v\u00e0 chuy\u1ec3n \u0111\u1ed5i n\u00f3 th\u00e0nh gi\u00e1 tr\u1ecb k\u1ef9 thu\u1eadt s\u1ed1 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 x\u1eed l\u00fd ti\u1ebfp. T\u00f9y thu\u1ed9c v\u00e0o m\u00f4-\u0111un c\u1ea3m bi\u1ebfn v\u00e0 b\u1ed9 vi \u0111i\u1ec1u khi\u1ec3n c\u1ee5 th\u1ec3 m\u00e0 b\u1ea1n \u0111ang s\u1eed d\u1ee5ng, b\u1ea1n c\u00f3 th\u1ec3 c\u1ea7n ph\u1ea3i vi\u1ebft m\u00e3 t\u00f9y ch\u1ec9nh \u0111\u1ec3 hi\u1ec7u ch\u1ec9nh c\u1ea3m bi\u1ebfn v\u00e0 b\u00f9 \u0111\u1eafp cho m\u1ecdi bi\u1ebfn \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/chimaytech.net\/wp-content\/uploads\/2023\/11\/Resistivity-Controller-CCT-3300-2.png\" alt=\"alt-6918\" class=\"wp-image-6918\" id=\"i6918\" \/><\/p>\n<p>M\u1ed9t trong nh\u1eefng \u01b0u \u0111i\u1ec3m ch\u00ednh c\u1ee7a vi\u1ec7c k\u1ebft n\u1ed1i c\u1ea3m bi\u1ebfn oxy h\u00f2a tan v\u1edbi b\u1ed9 vi \u0111i\u1ec1u khi\u1ec3n l\u00e0 kh\u1ea3 n\u0103ng t\u1ef1 \u0111\u1ed9ng h\u00f3a vi\u1ec7c theo d\u00f5i v\u00e0 ki\u1ec3m so\u00e1t n\u1ed3ng \u0111\u1ed9 oxy trong h\u1ec7 th\u1ed1ng. B\u1eb1ng c\u00e1ch li\u00ean t\u1ee5c \u0111o n\u1ed3ng \u0111\u1ed9 oxy h\u00f2a tan v\u00e0 \u0111i\u1ec1u ch\u1ec9nh c\u00e1c th\u00f4ng s\u1ed1 h\u1ec7 th\u1ed1ng ph\u00f9 h\u1ee3p, b\u1ea1n c\u00f3 th\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c \u0111i\u1ec1u ki\u1ec7n lu\u00f4n t\u1ed1i \u01b0u cho \u1ee9ng d\u1ee5ng mong mu\u1ed1n. V\u00ed d\u1ee5, trong nu\u00f4i tr\u1ed3ng th\u1ee7y s\u1ea3n, vi\u1ec7c duy tr\u00ec m\u1ee9c oxy h\u00f2a tan ph\u00f9 h\u1ee3p l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi s\u1ee9c kh\u1ecfe v\u00e0 s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a c\u00e1 ho\u1eb7c t\u00f4m. B\u1eb1ng c\u00e1ch k\u1ebft n\u1ed1i c\u1ea3m bi\u1ebfn oxy h\u00f2a tan v\u1edbi b\u1ed9 vi \u0111i\u1ec1u khi\u1ec3n, b\u1ea1n c\u00f3 th\u1ec3 t\u1ef1 \u0111\u1ed9ng \u0111i\u1ec1u ch\u1ec9nh h\u1ec7 th\u1ed1ng s\u1ee5c kh\u00ed \u0111\u1ec3 gi\u1eef m\u1ee9c oxy trong ph\u1ea1m vi mong mu\u1ed1n.<\/p>\n<p>T\u00f3m l\u1ea1i, k\u1ebft n\u1ed1i c\u1ea3m bi\u1ebfn oxy h\u00f2a tan v\u1edbi b\u1ed9 vi \u0111i\u1ec1u khi\u1ec3n l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 m\u1ea1nh m\u1ebd \u0111\u1ec3 \u0111o v\u00e0 theo d\u00f5i oxy m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c m\u1ee9c \u0111\u1ed9 trong c\u00e1c \u1ee9ng d\u1ee5ng kh\u00e1c nhau. B\u1eb1ng c\u00e1ch hi\u1ec3u c\u00e1c nguy\u00ean t\u1eafc c\u01a1 b\u1ea3n v\u1ec1 c\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u1ea3m bi\u1ebfn oxy h\u00f2a tan v\u00e0 l\u00e0m theo c\u00e1c b\u01b0\u1edbc th\u00edch h\u1ee3p \u0111\u1ec3 k\u1ebft n\u1ed1i n\u00f3 v\u1edbi b\u1ed9 vi \u0111i\u1ec1u khi\u1ec3n, b\u1ea1n c\u00f3 th\u1ec3 t\u1ea1o ra m\u1ed9t h\u1ec7 th\u1ed1ng \u0111\u00e1ng tin c\u1eady v\u00e0 hi\u1ec7u qu\u1ea3 \u0111\u1ec3 ki\u1ec3m so\u00e1t m\u1ee9c oxy trong quy tr\u00ecnh c\u1ee7a m\u00ecnh. Cho d\u00f9 b\u1ea1n \u0111ang l\u00e0m vi\u1ec7c trong l\u0129nh v\u1ef1c gi\u00e1m s\u00e1t m\u00f4i tr\u01b0\u1eddng, nu\u00f4i tr\u1ed3ng th\u1ee7y s\u1ea3n hay x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i, c\u1ea3m bi\u1ebfn oxy h\u00f2a tan v\u1edbi b\u1ed9 vi \u0111i\u1ec1u khi\u1ec3n c\u00f3 th\u1ec3 gi\u00fap b\u1ea1n \u0111\u1ea1t \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 t\u1ed1i \u01b0u.<\/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 \u0111\u1ee5c tr\u1ef1c tuy\u1ebfn NTU-1800<\/td>\n<\/tr>\n<tr>\n<td>Ph\u1ea1m vi<\/td>\n<td>0-10\/100\/4000NTU ho\u1eb7c theo y\u00eau c\u1ea7u<\/td>\n<\/tr>\n<tr>\n<td>Hi\u1ec3n th\u1ecb<\/td>\n<td>LCD<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u01a1n v\u1ecb<\/td>\n<td>NTU<\/td>\n<\/tr>\n<tr>\n<td>DPI<\/td>\n<td>0.01<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1ed9 ch\u00ednh x\u00e1c<\/td>\n<td>\u00b15 ph\u1ea7n tr\u0103m FS<\/td>\n<\/tr>\n<tr>\n<td>Kh\u1ea3 n\u0103ng l\u1eb7p l\u1ea1i<\/td>\n<td>\u00b11 ph\u1ea7n tr\u0103m <\/td>\n<\/tr>\n<tr>\n<td>S\u1ee9c m\u1ea1nh<\/td>\n<td>\u22643W<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"2\">Ngu\u1ed3n \u0111i\u1ec7n<\/td>\n<td>AC 85V-265V\u00b110 ph\u1ea7n tr\u0103m 50\/60Hz ho\u1eb7c<\/td>\n<\/tr>\n<tr>\n<td>DC 9~36V\/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>160*80*135mm(Treo) ho\u1eb7c 96*96mm(Nh\u00fang)<\/td>\n<\/tr>\n<tr>\n<td>Giao ti\u1ebfp<\/td>\n<td>4~20mA v\u00e0 giao ti\u1ebfp RS-485 (Modbus RTU)<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1ea7u ra \u0111\u00e3 chuy\u1ec3n \u0111\u1ed5i<\/td>\n<td>R\u01a1le 3 chi\u1ec1u, c\u00f4ng su\u1ea5t 250VAC\/5A<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n","protected":false},"excerpt":{"rendered":"<p>L\u1ee3i \u00edch c\u1ee7a vi\u1ec7c s\u1eed d\u1ee5ng c\u1ea3m bi\u1ebfn oxy h\u00f2a tan v\u1edbi b\u1ed9 vi \u0111i\u1ec1u khi\u1ec3n C\u1ea3m bi\u1ebfn oxy h\u00f2a tan l\u00e0 c\u00f4ng c\u1ee5 thi\u1ebft y\u1ebfu trong nhi\u1ec1u ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c nhau, bao g\u1ed3m gi\u00e1m s\u00e1t m\u00f4i tr\u01b0\u1eddng, nu\u00f4i tr\u1ed3ng th\u1ee7y s\u1ea3n v\u00e0 x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i. Nh\u1eefng c\u1ea3m bi\u1ebfn n\u00e0y \u0111o l\u01b0\u1ee3ng oxy&#8230;<\/p>\n","protected":false},"author":1,"featured_media":6911,"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":false,"content":false,"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":false,"content":false,"excerpt":false},"it":{"title":false,"content":false,"excerpt":false},"id":{"title":false,"content":false,"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":true,"content":true,"excerpt":false}}},"_links":{"self":[{"href":"https:\/\/chimaytech.net\/vi\/wp-json\/wp\/v2\/posts\/17922"}],"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=17922"}],"version-history":[{"count":0,"href":"https:\/\/chimaytech.net\/vi\/wp-json\/wp\/v2\/posts\/17922\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/chimaytech.net\/vi\/wp-json\/wp\/v2\/media\/6911"}],"wp:attachment":[{"href":"https:\/\/chimaytech.net\/vi\/wp-json\/wp\/v2\/media?parent=17922"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/chimaytech.net\/vi\/wp-json\/wp\/v2\/categories?post=17922"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/chimaytech.net\/vi\/wp-json\/wp\/v2\/tags?post=17922"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}