{"id":9365,"date":"2026-09-09T12:00:02","date_gmt":"2026-09-09T04:00:02","guid":{"rendered":"https:\/\/www.yantaisensor.com\/?p=9365"},"modified":"2026-09-09T12:02:03","modified_gmt":"2026-09-09T04:02:03","slug":"tunnel-luminance-sensor-vs-illuminance-sensor","status":"publish","type":"post","link":"https:\/\/www.yantaisensor.com\/vi\/blog\/tunnel-luminance-sensor-vs-illuminance-sensor","title":{"rendered":"C\u1ea3m bi\u1ebfn \u0111\u1ed9 ch\u00f3i \u0111\u01b0\u1eddng h\u1ea7m so v\u1edbi C\u1ea3m bi\u1ebfn \u0111\u1ed9 r\u1ecdi: Gi\u1ea3i th\u00edch s\u1ef1 kh\u00e1c bi\u1ec7t"},"content":{"rendered":"

Gi\u1edbi thi\u1ec7u<\/h2>\n\n\n\n

Khi l\u1ef1a ch\u1ecdn c\u1ea3m bi\u1ebfn cho d\u1ef1 \u00e1n chi\u1ebfu s\u00e1ng h\u1ea7m \u0111\u01b0\u1eddng b\u1ed9, c\u00e1c k\u1ef9 s\u01b0 th\u01b0\u1eddng ph\u1ea3i \u0111\u1ed1i m\u1eb7t v\u1edbi m\u1ed9t c\u00e2u h\u1ecfi \u0111\u01a1n gi\u1ea3n nh\u01b0ng quan tr\u1ecdng: h\u1ec7 th\u1ed1ng n\u00ean s\u1eed d\u1ee5ng c\u1ea3m bi\u1ebfn \u0111\u1ed9 ch\u00f3i h\u1ea7m hay c\u1ea3m bi\u1ebfn \u0111\u1ed9 r\u1ecdi h\u1ea7m? C\u1ea3 hai lo\u1ea1i c\u1ea3m bi\u1ebfn \u0111\u1ec1u \u0111o \u0111i\u1ec1u ki\u1ec7n \u00e1nh s\u00e1ng, nh\u01b0ng ch\u00fang kh\u00f4ng \u0111o c\u00f9ng m\u1ed9t \u0111\u1ea1i l\u01b0\u1ee3ng tr\u1eafc quang ho\u1eb7c ph\u1ee5c v\u1ee5 ch\u00ednh x\u00e1c c\u00f9ng m\u1ed9t m\u1ee5c \u0111\u00edch. Vi\u1ec7c ch\u1ecdn sai c\u1ea3m bi\u1ebfn c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn d\u1eef li\u1ec7u \u0111o kh\u00f4ng ph\u00f9 h\u1ee3p, ki\u1ec3m so\u00e1t chi\u1ebfu s\u00e1ng k\u00e9m hi\u1ec7u qu\u1ea3 ho\u1eb7c ph\u1ea3i \u0111i\u1ec1u ch\u1ec9nh kh\u00f4ng c\u1ea7n thi\u1ebft h\u1ec7 th\u1ed1ng gi\u00e1m s\u00e1t.<\/p>\n\n\n\n

S\u1ef1 kh\u00e1c bi\u1ec7t ch\u00ednh gi\u1eefa c\u1ea3m bi\u1ebfn \u0111\u1ed9 ch\u00f3i h\u1ea7m v\u00e0 c\u1ea3m bi\u1ebfn \u0111\u1ed9 r\u1ecdi h\u1ea7m n\u1eb1m \u1edf \u0111\u1ed1i t\u01b0\u1ee3ng m\u00e0 c\u1ea3m bi\u1ebfn \u0111o. C\u1ea3m bi\u1ebfn \u0111\u1ed9 ch\u00f3i h\u1ea7m \u0111o \u0111\u1ed9 s\u00e1ng c\u1ee7a m\u1ed9t b\u1ec1 m\u1eb7t ho\u1eb7c c\u1ea3nh quan t\u1eeb m\u1ed9t h\u01b0\u1edbng quan s\u00e1t x\u00e1c \u0111\u1ecbnh, bi\u1ec3u th\u1ecb b\u1eb1ng cd\/m\u00b2, trong khi c\u1ea3m bi\u1ebfn \u0111\u1ed9 r\u1ecdi h\u1ea7m \u0111o l\u01b0\u1ee3ng \u00e1nh s\u00e1ng chi\u1ebfu xu\u1ed1ng m\u1ed9t b\u1ec1 m\u1eb7t, bi\u1ec3u th\u1ecb b\u1eb1ng lux (lx). S\u1ef1 kh\u00e1c bi\u1ec7t n\u00e0y tr\u1edf n\u00ean \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng khi thi\u1ebft k\u1ebf gi\u00e1m s\u00e1t chi\u1ebfu s\u00e1ng h\u1ea7m cho khu v\u1ef1c c\u1eeda h\u1ea7m, v\u00f9ng ng\u01b0\u1ee1ng, chi\u1ebfu s\u00e1ng b\u00ean trong v\u00e0 ki\u1ec3m so\u00e1t chi\u1ebfu s\u00e1ng.<\/p>\n\n\n\n

\u0110\u1ed1i v\u1edbi c\u00e1c k\u1ef9 s\u01b0 v\u00e0 nh\u00e0 t\u00edch h\u1ee3p h\u1ec7 th\u1ed1ng, do \u0111\u00f3, vi\u1ec7c l\u1ef1a ch\u1ecdn kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n l\u00e0 c\u1ea3m bi\u1ebfn n\u00e0o c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c cao h\u01a1n. N\u00f3 b\u1eaft \u0111\u1ea7u t\u1eeb vi\u1ec7c hi\u1ec3u c\u1ea7n \u0111o g\u00ec, \u0111o \u1edf \u0111\u00e2u v\u00e0 d\u1eef li\u1ec7u thu \u0111\u01b0\u1ee3c s\u1ebd \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0 th\u1ebf n\u00e0o trong h\u1ec7 th\u1ed1ng chi\u1ebfu s\u00e1ng. \u0110\u00f3 ch\u00ednh l\u00e0 n\u01a1i s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa \u0111\u1ed9 ch\u00f3i v\u00e0 \u0111\u1ed9 r\u1ecdi tr\u1edf n\u00ean quan tr\u1ecdng.<\/p>\n\n\n\n

\n
\"c\u1ea3m<\/figure>\n\n\n\n
\"c\u1ea3m<\/figure>\n<\/figure>\n\n\n\n

C\u1ea3m bi\u1ebfn \u0111\u1ed9 ch\u00f3i h\u1ea7m so v\u1edbi C\u1ea3m bi\u1ebfn \u0111\u1ed9 r\u1ecdi h\u1ea7m: So s\u00e1nh nhanh<\/h2>\n\n\n\n

Khi l\u1ef1a ch\u1ecdn c\u1ea3m bi\u1ebfn \u00e1nh s\u00e1ng cho d\u1ef1 \u00e1n h\u1ea7m, s\u1ef1 kh\u00e1c bi\u1ec7t ch\u00ednh kh\u00f4ng ch\u1ec9 \u0111\u01a1n gi\u1ea3n l\u00e0 v\u1ecb tr\u00ed l\u1eafp \u0111\u1eb7t thi\u1ebft b\u1ecb. \u0110\u00f3 l\u00e0 \u0111\u1ea1i l\u01b0\u1ee3ng quang h\u1ecdc m\u00e0 c\u1ea3m bi\u1ebfn \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 \u0111o v\u00e0 c\u00e1ch s\u1eed d\u1ee5ng ph\u00e9p \u0111o \u0111\u00f3. C\u1ea3m bi\u1ebfn \u0111\u1ed9 ch\u00f3i h\u1ea7m \u0111o \u0111\u1ed9 ch\u00f3i t\u1eeb m\u1ed9t h\u01b0\u1edbng quan s\u00e1t x\u00e1c \u0111\u1ecbnh, trong khi c\u1ea3m bi\u1ebfn \u0111\u1ed9 r\u1ecdi h\u1ea7m \u0111o l\u01b0\u1ee3ng \u00e1nh s\u00e1ng chi\u1ebfu t\u1edbi m\u1ed9t b\u1ec1 m\u1eb7t. S\u1ef1 kh\u00e1c bi\u1ec7t n\u00e0y \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn thi\u1ebft k\u1ebf quang h\u1ecdc, h\u00ecnh h\u1ecdc l\u1eafp \u0111\u1eb7t v\u00e0 vai tr\u00f2 c\u1ee7a c\u1ea3m bi\u1ebfn trong gi\u00e1m s\u00e1t chi\u1ebfu s\u00e1ng h\u1ea7m.<\/p>\n\n\n\n

T\u00ednh n\u0103ng<\/td>C\u1ea3m bi\u1ebfn \u0111\u1ed9 s\u00e1ng trong h\u1ea7m<\/td>C\u1ea3m bi\u1ebfn \u0111\u1ed9 r\u1ecdi trong h\u1ea7m<\/td><\/tr>
\u0110\u1ea1i l\u01b0\u1ee3ng \u0111o<\/td>\u0110\u1ed9 ch\u00f3i<\/td>\u0110\u1ed9 r\u1ecdi<\/td><\/tr>
\u0110\u01a1n v\u1ecb<\/td>cd\/m\u00b2<\/td>lux (lx)<\/td><\/tr>
\u0110\u1ed1i t\u01b0\u1ee3ng \u0111o<\/td>\u0110\u1ed9 s\u00e1ng c\u1ee7a b\u1ec1 m\u1eb7t ho\u1eb7c c\u1ea3nh quan t\u1eeb m\u1ed9t h\u01b0\u1edbng quan s\u00e1t x\u00e1c \u0111\u1ecbnh<\/td>\u00c1nh s\u00e1ng chi\u1ebfu xu\u1ed1ng m\u1ed9t b\u1ec1 m\u1eb7t<\/td><\/tr>
M\u1ee5c ti\u00eau \u0111i\u1ec3n h\u00ecnh<\/td>B\u1ec1 m\u1eb7t \u0111\u01b0\u1eddng, c\u1eeda h\u1ea7m ho\u1eb7c tr\u01b0\u1eddng quan s\u00e1t x\u00e1c \u0111\u1ecbnh kh\u00e1c<\/td>B\u1ec1 m\u1eb7t \u0111\u01b0\u1eddng ho\u1eb7c m\u1eb7t ph\u1eb3ng \u0111o<\/td><\/tr>
\u1ee8ng d\u1ee5ng \u0111i\u1ec3n h\u00ecnh<\/td>Chi\u1ebfu s\u00e1ng c\u1eeda h\u1ea7m, \u0111\u00e1nh gi\u00e1 v\u00f9ng ng\u01b0\u1ee1ng, ki\u1ec3m so\u00e1t chi\u1ebfu s\u00e1ng th\u00edch \u1ee9ng<\/td>Gi\u00e1m s\u00e1t chi\u1ebfu s\u00e1ng b\u00ean trong, ki\u1ec3m ch\u1ee9ng chi\u1ebfu s\u00e1ng v\u00e0 ph\u1ea3n h\u1ed3i \u0111i\u1ec1u khi\u1ec3n<\/td><\/tr>
Y\u1ebfu t\u1ed1 quang h\u1ecdc ch\u00ednh<\/td>Tr\u01b0\u1eddng quan s\u00e1t v\u00e0 h\u01b0\u1edbng quan s\u00e1t<\/td>H\u01b0\u1edbng c\u1ea3m bi\u1ebfn v\u00e0 \u0111\u00e1p \u1ee9ng cosine<\/td><\/tr>
L\u1eafp \u0111\u1eb7t \u0111i\u1ec3n h\u00ecnh<\/td>\u0110\u01b0\u1ee3c \u0111\u1ecbnh v\u1ecb \u0111\u1ec3 quan s\u00e1t khu v\u1ef1c m\u1ee5c ti\u00eau t\u1eeb m\u1ed9t g\u00f3c x\u00e1c \u0111\u1ecbnh<\/td>\u0110\u01b0\u1ee3c \u0111\u1ecbnh v\u1ecb \u0111\u1ec3 \u0111o \u00e1nh s\u00e1ng t\u1edbi tr\u00ean m\u1eb7t ph\u1eb3ng y\u00eau c\u1ea7u<\/td><\/tr>
Vai tr\u00f2 ch\u00ednh trong h\u1ec7 th\u1ed1ng<\/td>Cung c\u1ea5p d\u1eef li\u1ec7u \u0111\u1ed9 ch\u00f3i cho ki\u1ec3m so\u00e1t chi\u1ebfu s\u00e1ng v\u00e0 \u0111\u00e1nh gi\u00e1 \u0111i\u1ec1u ki\u1ec7n th\u1ecb gi\u00e1c<\/td>Cung c\u1ea5p d\u1eef li\u1ec7u \u0111\u1ed9 r\u1ecdi cho gi\u00e1m s\u00e1t chi\u1ebfu s\u00e1ng v\u00e0 ki\u1ec3m ch\u1ee9ng hi\u1ec7u su\u1ea5t<\/td><\/tr>
\u0110\u1ea7u ra \u0111i\u1ec3n h\u00ecnh<\/td>RS485, Modbus, 4\u201320 mA, 0\u201310 V*<\/td>RS485, Modbus, 4\u201320 mA, relay, v.v.*<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

C\u1ea3m bi\u1ebfn \u0111\u1ed9 ch\u00f3i h\u1ea7m l\u00e0 g\u00ec?<\/h2>\n\n\n\n

C\u1ea3m bi\u1ebfn \u0111\u1ed9 ch\u00f3i h\u1ea7m<\/mark><\/a> l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb quang h\u1ecdc \u0111o \u0111\u1ed9 s\u00e1ng c\u1ee7a b\u1ec1 m\u1eb7t \u0111\u01b0\u1eddng ho\u1eb7c khu v\u1ef1c quan s\u00e1t x\u00e1c \u0111\u1ecbnh b\u1eb1ng candela tr\u00ean m\u00e9t vu\u00f4ng (cd\/m\u00b2). Kh\u00f4ng gi\u1ed1ng nh\u01b0 c\u1ea3m bi\u1ebfn \u0111\u1ed9 r\u1ecdi, \u0111o l\u01b0\u1ee3ng \u00e1nh s\u00e1ng chi\u1ebfu xu\u1ed1ng m\u1ed9t b\u1ec1 m\u1eb7t b\u1eb1ng lux, c\u1ea3m bi\u1ebfn \u0111\u1ed9 ch\u00f3i \u0111o \u00e1nh s\u00e1ng ph\u1ea3n x\u1ea1 t\u1eeb m\u1ee5c ti\u00eau v\u1ec1 ph\u00eda c\u1ea3m bi\u1ebfn t\u1eeb m\u1ed9t h\u01b0\u1edbng quan s\u00e1t x\u00e1c \u0111\u1ecbnh.<\/p>\n\n\n\n

C\u1ea3m bi\u1ebfn \u0111\u1ed9 ch\u00f3i h\u1ea7m \u0111o g\u00ec?<\/h3>\n\n\n\n

C\u1ea3m bi\u1ebfn \u0111\u1ed9 ch\u00f3i h\u1ea7m \u0111o \u0111\u1ed9 s\u00e1ng c\u1ee7a b\u1ec1 m\u1eb7t \u0111\u01b0\u1eddng ho\u1eb7c khu v\u1ef1c quan s\u00e1t x\u00e1c \u0111\u1ecbnh b\u1eb1ng cd\/m\u00b2, d\u1ef1a tr\u00ean h\u01b0\u1edbng quan s\u00e1t v\u00e0 tr\u01b0\u1eddng quan s\u00e1t c\u1ee5 th\u1ec3. S\u1eed d\u1ee5ng th\u1ea5u k\u00ednh quang h\u1ecdc, photodiode v\u00e0 b\u1ed9 l\u1ecdc ph\u1ed5 V(\u03bb), n\u00f3 chuy\u1ec3n \u0111\u1ed5i \u00e1nh s\u00e1ng ph\u1ea3n x\u1ea1 th\u00e0nh gi\u00e1 tr\u1ecb \u0111\u1ed9 ch\u00f3i \u0111\u00e3 hi\u1ec7u chu\u1ea9n. M\u1eabu c\u1ee7a Yantai Sensor bao ph\u1ee7 d\u1ea3i 0\u20137000 cd\/m\u00b2, v\u1edbi g\u00f3c \u0111o ngang v\u00e0 d\u1ecdc \u226520\u00b0 v\u00e0 \u0111\u1ea7u ra RS485\/4\u201320 mA \u0111\u1ec3 t\u00edch h\u1ee3p h\u1ec7 th\u1ed1ng.<\/p>\n\n\n\n

T\u1ea1i sao \u0111\u1ed9 ch\u00f3i l\u1ea1i quan tr\u1ecdng \u1edf c\u1eeda h\u1ea7m?<\/h3>\n\n\n\n

T\u1ea1i c\u1eeda h\u1ea7m, ng\u01b0\u1eddi l\u00e1i xe chuy\u1ec3n t\u1eeb m\u00f4i tr\u01b0\u1eddng ngo\u00e0i tr\u1eddi s\u00e1ng sang m\u00f4i tr\u01b0\u1eddng b\u00ean trong t\u1ed1i h\u01a1n nhi\u1ec1u. S\u1ef1 ch\u00eanh l\u1ec7ch l\u1edbn v\u1ec1 \u0111\u1ed9 s\u00e1ng c\u00f3 th\u1ec3 khi\u1ebfn h\u1ea7m tr\u00f4ng gi\u1ed1ng nh\u01b0 m\u1ed9t h\u1ed1 \u0111en, t\u1ea1m th\u1eddi l\u00e0m gi\u1ea3m kh\u1ea3 n\u0103ng nh\u1eadn bi\u1ebft \u0111\u01b0\u1eddng v\u00e0 ch\u01b0\u1edbng ng\u1ea1i v\u1eadt c\u1ee7a ng\u01b0\u1eddi l\u00e1i.<\/p>\n\n\n\n

\u0110o \u0111\u1ed9 ch\u00f3i t\u1ea1i c\u1eeda h\u1ea7m gi\u00fap x\u00e1c \u0111\u1ecbnh \u0111i\u1ec1u ki\u1ec7n \u0111\u1ed9 s\u00e1ng xung quanh v\u00f9ng ng\u01b0\u1ee1ng v\u00e0 v\u00f9ng chuy\u1ec3n ti\u1ebfp. D\u1eef li\u1ec7u n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh chi\u1ebfu s\u00e1ng c\u1eeda h\u1ea7m theo \u0111i\u1ec1u ki\u1ec7n \u00e1nh s\u00e1ng ban ng\u00e0y thay \u0111\u1ed5i, h\u1ed7 tr\u1ee3 chi\u1ebfu s\u00e1ng th\u00edch \u1ee9ng trong khi v\u1eabn duy tr\u00ec \u0111i\u1ec1u ki\u1ec7n th\u1ecb gi\u00e1c ph\u00f9 h\u1ee3p cho ng\u01b0\u1eddi l\u00e1i xe.<\/p>\n\n\n\n

\n
\"c\u1ea3m<\/figure>\n\n\n\n
\"c\u1ea3m<\/figure>\n\n\n\n
\"c\u1ea3m<\/figure>\n<\/figure>\n\n\n\n

C\u1ea3m bi\u1ebfn \u0111\u1ed9 r\u1ecdi h\u1ea7m l\u00e0 g\u00ec?<\/h2>\n\n\n\n

C\u1ea3m bi\u1ebfn \u0111\u1ed9 r\u1ecdi h\u1ea7m <\/mark><\/a>\u0111o l\u01b0\u1ee3ng \u00e1nh s\u00e1ng chi\u1ebfu t\u1edbi m\u1ed9t b\u1ec1 m\u1eb7t b\u1eb1ng lux (lx). Trong \u1ee9ng d\u1ee5ng h\u1ea7m, n\u00f3 x\u00e1c \u0111\u1ecbnh \u0111\u1ed9 r\u1ecdi th\u1ef1c t\u1ebf nh\u1eadn \u0111\u01b0\u1ee3c tr\u00ean m\u1ed9t m\u1eb7t ph\u1eb3ng \u0111o x\u00e1c \u0111\u1ecbnh, ch\u1eb3ng h\u1ea1n nh\u01b0 b\u1ec1 m\u1eb7t \u0111\u01b0\u1eddng, cung c\u1ea5p cho k\u1ef9 s\u01b0 d\u1eef li\u1ec7u \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 m\u1ee9c chi\u1ebfu s\u00e1ng do \u0111\u00e8n h\u1ea7m cung c\u1ea5p v\u00e0 m\u1ee9c \u0111\u1ed9 tu\u00e2n th\u1ee7 c\u00e1c y\u00eau c\u1ea7u c\u1ee7a m\u1ed9t khu v\u1ef1c c\u1ee5 th\u1ec3.<\/p>\n\n\n\n

C\u1ea3m bi\u1ebfn \u0111\u1ed9 r\u1ecdi h\u1ea7m \u0111o g\u00ec?<\/h3>\n\n\n\n

Gi\u00e1 tr\u1ecb \u0111\u1ed9 r\u1ecdi \u0111o \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb l\u01b0\u1ee3ng \u00e1nh s\u00e1ng nh\u1eadn \u0111\u01b0\u1ee3c tr\u00ean m\u1eb7t ph\u1eb3ng \u0111o x\u00e1c \u0111\u1ecbnh trong \u0111i\u1ec1u ki\u1ec7n v\u1eadn h\u00e0nh th\u1ef1c t\u1ebf. \u0110\u1ed1i v\u1edbi c\u00e1c d\u1ef1 \u00e1n h\u1ea7m, \u0111i\u1ec1u n\u00e0y cho ph\u00e9p k\u1ef9 s\u01b0 \u0111\u00e1nh gi\u00e1 m\u1ee9c chi\u1ebfu s\u00e1ng tr\u00ean b\u1ec1 m\u1eb7t \u0111\u01b0\u1eddng, thay v\u00ec \u0111\u00e1nh gi\u00e1 \u0111\u1ed9 s\u00e1ng b\u1eb1ng m\u1eaft th\u01b0\u1eddng. K\u1ebft qu\u1ea3 c\u00f3 th\u1ec3 b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi ph\u00e2n b\u1ed1 \u0111\u00e8n, h\u01b0\u1edbng c\u1ea3m bi\u1ebfn v\u00e0 v\u1ecb tr\u00ed c\u1ee7a m\u1eb7t ph\u1eb3ng \u0111o, do \u0111\u00f3 vi\u1ec7c l\u1eafp \u0111\u1eb7t ch\u00ednh x\u00e1c v\u00e0 \u0111\u00e1p \u1ee9ng quang h\u1ecdc ph\u00f9 h\u1ee3p l\u00e0 quan tr\u1ecdng \u0111\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c d\u1eef li\u1ec7u \u0111\u1ea1i di\u1ec7n.<\/p>\n\n\n\n

C\u1ea3m bi\u1ebfn \u0111\u1ed9 r\u1ecdi \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u1edf \u0111\u00e2u trong h\u1ea7m?<\/h3>\n\n\n\n

C\u1ea3m bi\u1ebfn \u0111\u1ed9 r\u1ecdi h\u1ea7m th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t b\u00ean trong h\u1ea7m \u0111\u1ec3 \u0111o m\u1ee9c chi\u1ebfu s\u00e1ng tr\u00ean b\u1ec1 m\u1eb7t \u0111\u01b0\u1eddng v\u00e0 ki\u1ec3m ch\u1ee9ng hi\u1ec7u su\u1ea5t chi\u1ebfu s\u00e1ng th\u1ef1c t\u1ebf. T\u00f9y thu\u1ed9c v\u00e0o y\u00eau c\u1ea7u d\u1ef1 \u00e1n, n\u00f3 c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng t\u1ea1i c\u1eeda h\u1ea7m, l\u1ed1i ra ho\u1eb7c c\u00e1c khu v\u1ef1c \u0111o \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh kh\u00e1c. D\u1eef li\u1ec7u \u0111o c\u00f3 th\u1ec3 h\u1ed7 tr\u1ee3 ki\u1ec3m ch\u1ee9ng chi\u1ebfu s\u00e1ng, nghi\u1ec7m thu v\u00e0 b\u1ea3o tr\u00ec, gi\u00fap k\u1ef9 s\u01b0 x\u00e1c \u0111\u1ecbnh t\u00ecnh tr\u1ea1ng chi\u1ebfu s\u00e1ng kh\u00f4ng \u0111\u1ee7 ho\u1eb7c nh\u1eefng thay \u0111\u1ed5i trong hi\u1ec7u su\u1ea5t chi\u1ebfu s\u00e1ng.<\/p>\n\n\n\n

\n
\"c\u1ea3m<\/figure>\n\n\n\n
\"c\u1ea3m<\/figure>\n\n\n\n
\"c\u1ea3m<\/figure>\n<\/figure>\n\n\n\n

\u0110\u1ed9 ch\u00f3i h\u1ea7m so v\u1edbi \u0110\u1ed9 r\u1ecdi h\u1ea7m: S\u1ef1 kh\u00e1c bi\u1ec7t l\u00e0 g\u00ec?<\/h2>\n\n\n\n

S\u1ef1 kh\u00e1c bi\u1ec7t ch\u00ednh gi\u1eefa \u0111\u1ed9 ch\u00f3i v\u00e0 \u0111\u1ed9 r\u1ecdi trong h\u1ea7m l\u00e0 \u0111\u1ea1i l\u01b0\u1ee3ng m\u00e0 m\u1ed7i c\u1ea3m bi\u1ebfn \u0111o l\u01b0\u1eddng. \u0110\u1ed9 ch\u00f3i m\u00f4 t\u1ea3 \u00e1nh s\u00e1ng ph\u00e1t ra t\u1eeb m\u1ed9t b\u1ec1 m\u1eb7t ho\u1eb7c tr\u01b0\u1eddng nh\u00ecn, trong khi \u0111\u1ed9 r\u1ecdi m\u00f4 t\u1ea3 \u00e1nh s\u00e1ng chi\u1ebfu xu\u1ed1ng m\u1ed9t b\u1ec1 m\u1eb7t. S\u1ef1 kh\u00e1c bi\u1ec7t n\u00e0y quy\u1ebft \u0111\u1ecbnh \u0111\u01a1n v\u1ecb \u0111o, h\u00ecnh h\u1ecdc quang h\u1ecdc v\u00e0 \u1ee9ng d\u1ee5ng \u0111o l\u01b0\u1eddng ph\u00f9 h\u1ee3p.<\/p>\n\n\n\n

\u0110\u1ea1i l\u01b0\u1ee3ng \u0111o: cd\/m\u00b2 so v\u1edbi lux<\/h3>\n\n\n\n

C\u1ea3m bi\u1ebfn \u0111\u1ed9 ch\u00f3i trong h\u1ea7m \u0111o \u0111\u1ed9 ch\u00f3i b\u1eb1ng \u0111\u01a1n v\u1ecb cd\/m\u00b2, m\u00f4 t\u1ea3 \u00e1nh s\u00e1ng ph\u1ea3n x\u1ea1 ho\u1eb7c ph\u00e1t ra t\u1eeb m\u1ed9t b\u1ec1 m\u1eb7t theo m\u1ed9t h\u01b0\u1edbng quan s\u00e1t x\u00e1c \u0111\u1ecbnh. C\u1ea3m bi\u1ebfn \u0111\u1ed9 r\u1ecdi trong h\u1ea7m \u0111o \u0111\u1ed9 r\u1ecdi b\u1eb1ng \u0111\u01a1n v\u1ecb lux (lx), m\u00f4 t\u1ea3 \u00e1nh s\u00e1ng chi\u1ebfu t\u1edbi m\u1ed9t m\u1eb7t ph\u1eb3ng \u0111o x\u00e1c \u0111\u1ecbnh. V\u00ec ch\u00fang \u0111o c\u00e1c \u0111\u1ea1i l\u01b0\u1ee3ng tr\u1eafc quang kh\u00e1c nhau, hai gi\u00e1 tr\u1ecb n\u00e0y kh\u00f4ng th\u1ec3 thay th\u1ebf cho nhau trong c\u00f9ng m\u1ed9t nhi\u1ec7m v\u1ee5 \u0111o l\u01b0\u1eddng.<\/p>\n\n\n\n

H\u01b0\u1edbng \u0111o v\u00e0 tr\u01b0\u1eddng nh\u00ecn<\/h3>\n\n\n\n

H\u00ecnh h\u1ecdc \u0111o l\u01b0\u1eddng v\u1ec1 c\u01a1 b\u1ea3n kh\u00e1c nhau gi\u1eefa hai lo\u1ea1i c\u1ea3m bi\u1ebfn. C\u1ea3m bi\u1ebfn \u0111\u1ed9 ch\u00f3i trong h\u1ea7m ph\u1ea3i xem x\u00e9t g\u00f3c quan s\u00e1t, tr\u01b0\u1eddng nh\u00ecn, v\u00f9ng m\u1ee5c ti\u00eau, h\u01b0\u1edbng quan s\u00e1t v\u00e0 \u00e1nh s\u00e1ng ph\u1ea3n x\u1ea1 \u0111i v\u00e0o c\u1ea3m bi\u1ebfn. C\u1ea3m bi\u1ebfn \u0111\u1ed9 r\u1ecdi trong h\u1ea7m t\u1eadp trung v\u00e0o h\u01b0\u1edbng \u0111\u1eb7t c\u1ea3m bi\u1ebfn, \u00e1nh s\u00e1ng t\u1edbi, m\u1eb7t ph\u1eb3ng \u0111o v\u00e0 \u0111\u00e1p \u1ee9ng cosine.<\/p>\n\n\n\n

N\u00f3i m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n, c\u1ea3m bi\u1ebfn \u0111\u1ed9 ch\u00f3i quan s\u00e1t m\u1ed9t m\u1ee5c ti\u00eau, trong khi c\u1ea3m bi\u1ebfn \u0111\u1ed9 r\u1ecdi \u0111o \u00e1nh s\u00e1ng \u0111\u1ebfn m\u1ed9t b\u1ec1 m\u1eb7t.<\/p>\n\n\n\n

V\u1ecb tr\u00ed \u0111o l\u01b0\u1eddng<\/h3>\n\n\n\n
V\u1ecb tr\u00ed \u0111o l\u01b0\u1eddng<\/td>\u0110\u1ea1i l\u01b0\u1ee3ng \u0111o \u0111i\u1ec3n h\u00ecnh<\/td><\/tr>
L\u1ed1i v\u00e0o h\u1ea7m<\/td>\u0110\u1ed9 ch\u00f3i<\/td><\/tr>
V\u00f9ng ng\u01b0\u1ee1ng<\/td>\u0110\u1ed9 ch\u00f3i<\/td><\/tr>
V\u00f9ng chuy\u1ec3n ti\u1ebfp<\/td>\u0110\u1ed9 ch\u00f3i \/ theo d\u1ef1 \u00e1n c\u1ee5 th\u1ec3<\/td><\/tr>
B\u00ean trong h\u1ea7m<\/td>\u0110\u1ed9 r\u1ecdi<\/td><\/tr>
Ki\u1ec3m tra \u0111\u1ed9 r\u1ecdi m\u1eb7t \u0111\u01b0\u1eddng<\/td>\u0110\u1ed9 r\u1ecdi<\/td><\/tr>
Ki\u1ec3m tra hi\u1ec7u su\u1ea5t chi\u1ebfu s\u00e1ng<\/td>\u0110\u1ed9 r\u1ecdi<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

V\u1ecb tr\u00ed \u0111o th\u1ef1c t\u1ebf ph\u1ea3i tu\u00e2n theo thi\u1ebft k\u1ebf chi\u1ebfu s\u00e1ng h\u1ea7m v\u00e0 c\u00e1c y\u00eau c\u1ea7u \u00e1p d\u1ee5ng c\u1ee7a d\u1ef1 \u00e1n. \u0110\u1ed9 ch\u00f3i \u0111\u1eb7c bi\u1ec7t li\u00ean quan \u0111\u1ebfn vi\u1ec7c \u0111\u00e1nh gi\u00e1 l\u1ed1i v\u00e0o v\u00e0 v\u00f9ng ng\u01b0\u1ee1ng, trong khi \u0111\u1ed9 r\u1ecdi th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ki\u1ec3m tra m\u1ee9c \u0111\u1ed9 chi\u1ebfu s\u00e1ng t\u1ea1i c\u00e1c b\u1ec1 m\u1eb7t x\u00e1c \u0111\u1ecbnh b\u00ean trong h\u1ea7m.<\/p>\n\n\n\n

\u0110i\u1ec1u khi\u1ec3n so v\u1edbi Gi\u00e1m s\u00e1t<\/h3>\n\n\n\n

Trong h\u1ec7 th\u1ed1ng chi\u1ebfu s\u00e1ng, d\u1eef li\u1ec7u \u0111\u1ed9 ch\u00f3i c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m \u0111\u1ea7u v\u00e0o cho vi\u1ec7c \u0111i\u1ec1u khi\u1ec3n chi\u1ebfu s\u00e1ng l\u1ed1i v\u00e0o, trong khi d\u1eef li\u1ec7u \u0111\u1ed9 r\u1ecdi c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ki\u1ec3m tra m\u1ee9c \u0111\u1ed9 chi\u1ebfu s\u00e1ng \u0111\u01b0\u1ee3c cung c\u1ea5p t\u1ea1i m\u1ed9t v\u1ecb tr\u00ed x\u00e1c \u0111\u1ecbnh. \u0110\u1ed1i v\u1edbi gi\u00e1m s\u00e1t chi\u1ebfu s\u00e1ng h\u1ea7m, c\u1ea5u h\u00ecnh c\u1ea3m bi\u1ebfn ph\u00f9 h\u1ee3p ph\u1ee5 thu\u1ed9c v\u00e0o thi\u1ebft k\u1ebf chi\u1ebfu s\u00e1ng, c\u00e1c ti\u00eau chu\u1ea9n \u00e1p d\u1ee5ng v\u00e0 ki\u1ebfn tr\u00fac t\u1ed5ng th\u1ec3 c\u1ee7a h\u1ec7 th\u1ed1ng.<\/p>\n\n\n\n

\n
\"c\u1ea3m<\/figure>\n\n\n\n
\"c\u1ea3m<\/figure>\n\n\n\n
\"c\u1ea3m<\/figure>\n<\/figure>\n\n\n\n

C\u1ea3m bi\u1ebfn \u0111\u1ed9 ch\u00f3i v\u00e0 \u0111\u1ed9 r\u1ecdi h\u1ea7m h\u1ed7 tr\u1ee3 gi\u00e1m s\u00e1t chi\u1ebfu s\u00e1ng h\u1ea7m nh\u01b0 th\u1ebf n\u00e0o?<\/h2>\n\n\n\n

Gi\u00e1m s\u00e1t chi\u1ebfu s\u00e1ng h\u1ea7m s\u1eed d\u1ee5ng c\u00e1c ph\u00e9p \u0111o tr\u1eafc quang kh\u00e1c nhau \u0111\u1ec3 hi\u1ec3u c\u1ea3 \u0111i\u1ec1u ki\u1ec7n \u00e1nh s\u00e1ng xung quanh l\u1ed1i v\u00e0o h\u1ea7m v\u00e0 m\u1ee9c \u0111\u1ed9 chi\u1ebfu s\u00e1ng th\u1ef1c t\u1ebf b\u00ean trong h\u1ea7m. C\u1ea3m bi\u1ebfn \u0111\u1ed9 ch\u00f3i h\u1ea7m c\u00f3 th\u1ec3 cung c\u1ea5p d\u1eef li\u1ec7u \u0111\u1ed9 ch\u00f3i cho vi\u1ec7c \u0111i\u1ec1u khi\u1ec3n chi\u1ebfu s\u00e1ng l\u1ed1i v\u00e0o, trong khi c\u1ea3m bi\u1ebfn \u0111\u1ed9 r\u1ecdi h\u1ea7m \u0111o \u0111\u1ed9 r\u1ecdi t\u1ea1i c\u00e1c v\u1ecb tr\u00ed x\u00e1c \u0111\u1ecbnh b\u00ean trong. K\u1ebft h\u1ee3p l\u1ea1i, ch\u00fang c\u00f3 th\u1ec3 h\u1ed7 tr\u1ee3 \u0111i\u1ec1u khi\u1ec3n chi\u1ebfu s\u00e1ng, ki\u1ec3m tra v\u00e0 b\u1ea3o tr\u00ec m\u00e0 kh\u00f4ng coi hai ph\u00e9p \u0111o n\u00e0y l\u00e0 c\u00f3 th\u1ec3 thay th\u1ebf cho nhau.<\/p>\n\n\n\n

\u0110i\u1ec1u khi\u1ec3n chi\u1ebfu s\u00e1ng h\u1ea7m d\u1ef1a tr\u00ean \u0111\u1ed9 ch\u00f3i<\/h3>\n\n\n\n

C\u1ea3m bi\u1ebfn \u0111\u1ed9 ch\u00f3i h\u1ea7m \u0111o s\u1ef1 thay \u0111\u1ed5i \u0111\u1ed9 ch\u00f3i t\u1ea1i ho\u1eb7c xung quanh l\u1ed1i v\u00e0o h\u1ea7m. Th\u00f4ng tin n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m \u0111\u1ea7u v\u00e0o cho vi\u1ec7c \u0111i\u1ec1u khi\u1ec3n chi\u1ebfu s\u00e1ng l\u1ed1i v\u00e0o, cho ph\u00e9p h\u1ec7 th\u1ed1ng chi\u1ebfu s\u00e1ng ph\u1ea3n \u1ee9ng v\u1edbi c\u00e1c \u0111i\u1ec1u ki\u1ec7n \u00e1nh s\u00e1ng ban ng\u00e0y thay \u0111\u1ed5i. Trong chi\u1ebfn l\u01b0\u1ee3c chi\u1ebfu s\u00e1ng th\u00edch \u1ee9ng, \u0111\u1ed9 ch\u00f3i \u0111o \u0111\u01b0\u1ee3c gi\u00fap x\u00e1c \u0111\u1ecbnh m\u1ee9c \u0111\u1ed9 chi\u1ebfu s\u00e1ng ph\u00f9 h\u1ee3p cho khu v\u1ef1c l\u1ed1i v\u00e0o v\u00e0 v\u00f9ng ng\u01b0\u1ee1ng.<\/p>\n\n\n\n

Gi\u00e1m s\u00e1t \u0111\u1ed9 r\u1ecdi b\u00ean trong h\u1ea7m<\/h3>\n\n\n\n

C\u1ea3m bi\u1ebfn \u0111\u1ed9 r\u1ecdi h\u1ea7m \u0111o \u0111\u1ed9 r\u1ecdi nh\u1eadn \u0111\u01b0\u1ee3c tr\u00ean m\u1ed9t m\u1eb7t ph\u1eb3ng \u0111o x\u00e1c \u0111\u1ecbnh, \u0111\u01a1n v\u1ecb lux (lx). B\u00ean trong h\u1ea7m, \u0111i\u1ec1u n\u00e0y cung c\u1ea5p th\u00f4ng tin tr\u1ef1c ti\u1ebfp v\u1ec1 m\u1ee9c \u0111\u1ed9 chi\u1ebfu s\u00e1ng t\u1ea1i b\u1ec1 m\u1eb7t \u0111\u01b0\u1eddng ho\u1eb7c c\u00e1c v\u1ecb tr\u00ed x\u00e1c \u0111\u1ecbnh kh\u00e1c. K\u1ebft qu\u1ea3 \u0111o \u0111\u1ed9 r\u1ecdi c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ki\u1ec3m tra chi\u1ebfu s\u00e1ng b\u00ean trong, nghi\u1ec7m thu, ki\u1ec3m tra \u0111\u1ecbnh k\u1ef3 v\u00e0 b\u1ea3o tr\u00ec.<\/p>\n\n\n\n

K\u1ebft h\u1ee3p c\u1ea3 hai c\u1ea3m bi\u1ebfn trong m\u1ed9t h\u1ec7 th\u1ed1ng gi\u00e1m s\u00e1t chi\u1ebfu s\u00e1ng h\u1ea7m<\/h3>\n\n\n\n

Trong m\u1ed9t s\u1ed1 d\u1ef1 \u00e1n h\u1ea7m, hai c\u1ea3m bi\u1ebfn c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng c\u00f9ng nhau v\u00ec ch\u00fang cung c\u1ea5p c\u00e1c lo\u1ea1i d\u1eef li\u1ec7u \u0111o kh\u00e1c nhau:<\/p>\n\n\n\n

\u00c1nh s\u00e1ng ngo\u00e0i tr\u1eddi \/ L\u1ed1i v\u00e0o \u2192 C\u1ea3m bi\u1ebfn \u0111\u1ed9 ch\u00f3i h\u1ea7m \u2192 B\u1ed9 \u0111i\u1ec1u khi\u1ec3n chi\u1ebfu s\u00e1ng \/ PLC \u2192 H\u1ec7 th\u1ed1ng chi\u1ebfu s\u00e1ng h\u1ea7m \u2192 C\u1ea3m bi\u1ebfn \u0111\u1ed9 r\u1ecdi h\u1ea7m \u2192 Gi\u00e1m s\u00e1t & Ki\u1ec3m tra<\/strong><\/p>\n\n\n\n

C\u1ea3m bi\u1ebfn \u0111\u1ed9 ch\u00f3i h\u1ea7m cung c\u1ea5p th\u00f4ng tin v\u1ec1 \u0111i\u1ec1u ki\u1ec7n thay \u0111\u1ed5i t\u1ea1i l\u1ed1i v\u00e0o, trong khi c\u1ea3m bi\u1ebfn \u0111\u1ed9 r\u1ecdi h\u1ea7m gi\u00fap ki\u1ec3m tra m\u1ee9c \u0111\u1ed9 chi\u1ebfu s\u00e1ng \u0111\u01b0\u1ee3c cung c\u1ea5p b\u00ean trong h\u1ea7m. C\u00e1ch ti\u1ebfp c\u1eadn b\u1ed5 tr\u1ee3 n\u00e0y c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n t\u00ednh nh\u1ea5t qu\u00e1n c\u1ee7a gi\u00e1m s\u00e1t chi\u1ebfu s\u00e1ng h\u1ea7m, trong khi c\u1ea5u h\u00ecnh c\u1ea3m bi\u1ebfn ch\u00ednh x\u00e1c v\u00e0 logic \u0111i\u1ec1u khi\u1ec3n ph\u1ea3i tu\u00e2n theo thi\u1ebft k\u1ebf d\u1ef1 \u00e1n, c\u00e1c ti\u00eau chu\u1ea9n \u00e1p d\u1ee5ng v\u00e0 ki\u1ebfn tr\u00fac h\u1ec7 th\u1ed1ng.<\/p>\n\n\n\n

\n
\"Gi\u00e1m<\/figure>\n\n\n\n
\"H\u1ec7<\/figure>\n<\/figure>\n\n\n\n

B\u1ea1n n\u00ean ch\u1ecdn c\u1ea3m bi\u1ebfn n\u00e0o cho d\u1ef1 \u00e1n h\u1ea7m c\u1ee7a m\u00ecnh?<\/h2>\n\n\n\n

C\u1ea3m bi\u1ebfn ph\u00f9 h\u1ee3p ph\u1ee5 thu\u1ed9c v\u00e0o nh\u1eefng g\u00ec c\u1ea7n \u0111o, v\u1ecb tr\u00ed \u0111o v\u00e0 c\u00e1ch d\u1eef li\u1ec7u s\u1ebd \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng. S\u1eed d\u1ee5ng b\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y \u0111\u1ec3 nhanh ch\u00f3ng \u0111\u1ed1i chi\u1ebfu c\u00e1c y\u00eau c\u1ea7u chi\u1ebfu s\u00e1ng h\u1ea7m th\u00f4ng th\u01b0\u1eddng v\u1edbi c\u1ea3m bi\u1ebfn ph\u00f9 h\u1ee3p.<\/p>\n\n\n\n

Y\u00eau c\u1ea7u d\u1ef1 \u00e1n<\/td>C\u1ea3m Bi\u1ebfn \u0110\u01b0\u1ee3c Khuy\u1ebfn Ngh\u1ecb<\/td>M\u1ee5c \u0110\u00edch Ch\u00ednh<\/td><\/tr>
\u0110o \u0111\u1ed9 ch\u00f3i t\u1ea1i l\u1ed1i v\u00e0o h\u1ea7m<\/td>C\u1ea3m bi\u1ebfn \u0111\u1ed9 s\u00e1ng trong h\u1ea7m<\/td>\u0110o \u0111\u1ed9 ch\u00f3i c\u1ee7a l\u1ed1i v\u00e0o ho\u1eb7c khu v\u1ef1c th\u1ecb gi\u00e1c x\u00e1c \u0111\u1ecbnh, \u0111\u01a1n v\u1ecb cd\/m\u00b2<\/td><\/tr>
\u0110i\u1ec1u khi\u1ec3n chi\u1ebfu s\u00e1ng v\u00f9ng ng\u01b0\u1ee1ng<\/td>C\u1ea3m bi\u1ebfn \u0111\u1ed9 s\u00e1ng trong h\u1ea7m<\/td>Cung c\u1ea5p d\u1eef li\u1ec7u \u0111\u1ed9 ch\u00f3i \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh chi\u1ebfu s\u00e1ng l\u1ed1i v\u00e0o<\/td><\/tr>
\u0110\u00e1nh gi\u00e1 kh\u1ea3 n\u0103ng th\u00edch \u1ee9ng th\u1ecb gi\u00e1c c\u1ee7a t\u00e0i x\u1ebf<\/td>C\u1ea3m bi\u1ebfn \u0111\u1ed9 s\u00e1ng trong h\u1ea7m<\/td>\u0110\u00e1nh gi\u00e1 \u0111i\u1ec1u ki\u1ec7n \u0111\u1ed9 ch\u00f3i t\u1eeb g\u00f3c nh\u00ecn c\u1ee7a t\u00e0i x\u1ebf<\/td><\/tr>
Chi\u1ebfu s\u00e1ng l\u1ed1i v\u00e0o th\u00edch \u1ee9ng ho\u1eb7c \u0111\u1ed9ng<\/td>C\u1ea3m bi\u1ebfn \u0111\u1ed9 s\u00e1ng trong h\u1ea7m<\/td>Ph\u1ea3n \u1ee9ng v\u1edbi s\u1ef1 thay \u0111\u1ed5i \u0111\u1ed9 ch\u00f3i b\u00ean ngo\u00e0i v\u00e0 t\u1ea1i l\u1ed1i v\u00e0o<\/td><\/tr>
\u0110o chi\u1ebfu s\u00e1ng b\u00ean trong h\u1ea7m<\/td>C\u1ea3m bi\u1ebfn \u0111\u1ed9 r\u1ecdi trong h\u1ea7m<\/td>\u0110o \u0111\u1ed9 r\u1ecdi nh\u1eadn \u0111\u01b0\u1ee3c tr\u00ean m\u1ed9t b\u1ec1 m\u1eb7t x\u00e1c \u0111\u1ecbnh, \u0111\u01a1n v\u1ecb lux<\/td><\/tr>
Ki\u1ec3m tra \u0111\u1ed9 r\u1ecdi b\u1ec1 m\u1eb7t \u0111\u01b0\u1eddng<\/td>C\u1ea3m bi\u1ebfn \u0111\u1ed9 r\u1ecdi trong h\u1ea7m<\/td>Ki\u1ec3m tra m\u1ee9c \u0111\u1ed9 chi\u1ebfu s\u00e1ng th\u1ef1c t\u1ebf t\u1ea1i m\u1eb7t ph\u1eb3ng \u0111o<\/td><\/tr>
Nghi\u1ec7m thu v\u00e0 b\u1ea3o tr\u00ec chi\u1ebfu s\u00e1ng<\/td>C\u1ea3m bi\u1ebfn \u0111\u1ed9 r\u1ecdi trong h\u1ea7m<\/td>H\u1ed7 tr\u1ee3 ki\u1ec3m tra hi\u1ec7u su\u1ea5t chi\u1ebfu s\u00e1ng v\u00e0 ki\u1ec3m tra \u0111\u1ecbnh k\u1ef3<\/td><\/tr>
\u0110i\u1ec1u khi\u1ec3n l\u1ed1i v\u00e0o + ki\u1ec3m tra b\u00ean trong<\/td>C\u1ea3 hai c\u1ea3m bi\u1ebfn<\/td>K\u1ebft h\u1ee3p \u0111o \u0111\u1ed9 ch\u00f3i l\u1ed1i v\u00e0o v\u1edbi ki\u1ec3m tra \u0111\u1ed9 r\u1ecdi b\u00ean trong<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

N\u00f3i m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n, h\u00e3y ch\u1ecdn c\u1ea3m bi\u1ebfn \u0111\u1ed9 ch\u00f3i h\u1ea7m khi d\u1ef1 \u00e1n t\u1eadp trung v\u00e0o \u0111\u1ed9 ch\u00f3i c\u1ee7a m\u1ed9t c\u1ea3nh th\u1ecb gi\u00e1c, \u0111\u1eb7c bi\u1ec7t l\u00e0 t\u1ea1i l\u1ed1i v\u00e0o v\u00e0 v\u00f9ng ng\u01b0\u1ee1ng. Ch\u1ecdn c\u1ea3m bi\u1ebfn \u0111\u1ed9 r\u1ecdi h\u1ea7m khi y\u00eau c\u1ea7u l\u00e0 \u0111o m\u1ee9c \u0111\u1ed9 chi\u1ebfu s\u00e1ng nh\u1eadn \u0111\u01b0\u1ee3c tr\u00ean m\u1ed9t b\u1ec1 m\u1eb7t x\u00e1c \u0111\u1ecbnh b\u00ean trong h\u1ea7m.<\/p>\n\n\n\n

\u0110\u1ed1i v\u1edbi c\u00e1c d\u1ef1 \u00e1n y\u00eau c\u1ea7u c\u1ea3 \u0111i\u1ec1u khi\u1ec3n d\u1ef1a tr\u00ean \u0111\u1ed9 ch\u00f3i l\u1ed1i v\u00e0o v\u00e0 gi\u00e1m s\u00e1t \u0111\u1ed9 r\u1ecdi b\u00ean trong, hai c\u1ea3m bi\u1ebfn c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng c\u00f9ng nhau. Vi\u1ec7c l\u1ef1a ch\u1ecdn cu\u1ed1i c\u00f9ng ph\u1ea3i d\u1ef1a tr\u00ean thi\u1ebft k\u1ebf chi\u1ebfu s\u00e1ng h\u1ea7m, y\u00eau c\u1ea7u \u0111o l\u01b0\u1eddng, c\u00e1c ti\u00eau chu\u1ea9n \u00e1p d\u1ee5ng v\u00e0 ki\u1ebfn tr\u00fac h\u1ec7 th\u1ed1ng.<\/p>\n\n\n\n

C\u00e1c y\u1ebfu t\u1ed1 khi l\u1ef1a ch\u1ecdn c\u1ea3m bi\u1ebfn \u00e1nh s\u00e1ng h\u1ea7m<\/h2>\n\n\n\n

Khi l\u1ef1a ch\u1ecdn c\u1ea3m bi\u1ebfn \u00e1nh s\u00e1ng h\u1ea7m, d\u1ea3i \u0111o v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c ch\u1ec9 l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a quy\u1ebft \u0111\u1ecbnh. C\u1ea3m bi\u1ebfn tr\u01b0\u1edbc ti\u00ean ph\u1ea3i ph\u00f9 h\u1ee3p v\u1edbi \u0111i\u1ec1u ki\u1ec7n \u00e1nh s\u00e1ng d\u1ef1 ki\u1ebfn v\u00e0 m\u1ee5c ti\u00eau \u0111o y\u00eau c\u1ea7u, v\u1edbi d\u1ea3i \u0111o \u0111\u1ee7 r\u1ed9ng \u0111\u1ec3 tr\u00e1nh b\u00e3o h\u00f2a trong khi v\u1eabn duy tr\u00ec \u0111\u1ed9 ph\u00e2n gi\u1ea3i h\u1eefu \u00edch \u1edf m\u1ee9c \u00e1nh s\u00e1ng th\u1ea5p h\u01a1n. \u0110\u1eb7c t\u00ednh quang h\u1ecdc c\u0169ng quan tr\u1ecdng: tr\u01b0\u1eddng nh\u00ecn, h\u00ecnh h\u1ecdc quan s\u00e1t, \u0111\u00e1p \u1ee9ng ph\u1ed5 v\u00e0 \u0111\u00e1p \u1ee9ng cosine<\/mark><\/a> ph\u1ea3i t\u01b0\u01a1ng \u1ee9ng v\u1edbi ph\u01b0\u01a1ng ph\u00e1p \u0111o d\u1ef1 ki\u1ebfn. Kh\u1ea3 n\u0103ng hi\u1ec7u chu\u1ea9n v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh \u0111o l\u01b0\u1eddng l\u00e2u d\u00e0i c\u0169ng quan tr\u1ecdng kh\u00f4ng k\u00e9m, \u0111\u1eb7c bi\u1ec7t khi c\u1ea3m bi\u1ebfn \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho \u0111i\u1ec1u khi\u1ec3n ho\u1eb7c ki\u1ec3m tra li\u00ean t\u1ee5c thay v\u00ec th\u1eed nghi\u1ec7m kh\u00f4ng th\u01b0\u1eddng xuy\u00ean.<\/p>\n\n\n\n

\u0110\u1ed1i v\u1edbi ho\u1ea1t \u0111\u1ed9ng v\u1eadn h\u00e0nh \u0111\u01b0\u1eddng h\u1ea7m d\u00e0i h\u1ea1n, c\u1ea3m bi\u1ebfn c\u0169ng ph\u1ea3i t\u00edch h\u1ee3p \u0111\u00e1ng tin c\u1eady v\u1edbi c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng \u0111i\u1ec1u khi\u1ec3n v\u00e0 gi\u00e1m s\u00e1t hi\u1ec7n c\u00f3. Ki\u1ec3m tra RS485, Modbus, 4\u201320 mA, r\u01a1 le ho\u1eb7c c\u00e1c giao di\u1ec7n y\u00eau c\u1ea7u kh\u00e1c, c\u0169ng nh\u01b0 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch truy\u1ec1n th\u00f4ng v\u1edbi PLC, SCADA ho\u1eb7c b\u1ed9 \u0111i\u1ec1u khi\u1ec3n chi\u1ebfu s\u00e1ng. B\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng c\u0169ng quan tr\u1ecdng kh\u00f4ng k\u00e9m trong c\u00e1c \u0111\u01b0\u1eddng h\u1ea7m ti\u1ebfp x\u00fac v\u1edbi b\u1ee5i, \u0111\u1ed9 \u1ea9m, ng\u01b0ng t\u1ee5 h\u01a1i n\u01b0\u1edbc, rung \u0111\u1ed9ng v\u00e0 thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9, v\u00ec v\u1eady v\u1ecf b\u1ecdc, ch\u1ec9 s\u1ed1 IP, c\u00e1ch b\u1ed1 tr\u00ed l\u1eafp \u0111\u1eb7t v\u00e0 kh\u1ea3 n\u0103ng ti\u1ebfp c\u1eadn b\u1ea3o tr\u00ec ph\u1ea3i ph\u00f9 h\u1ee3p v\u1edbi \u0111i\u1ec1u ki\u1ec7n l\u1eafp \u0111\u1eb7t th\u1ef1c t\u1ebf. \u0110\u1ed1i v\u1edbi c\u00e1c d\u1ef1 \u00e1n B2B, m\u1ed9t l\u1ef1a ch\u1ecdn \u0111\u00e1ng tin c\u1eady do \u0111\u00f3 l\u00e0 s\u1ef1 k\u1ebft h\u1ee3p gi\u1eefa hi\u1ec7u su\u1ea5t \u0111o l\u01b0\u1eddng, kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch h\u1ec7 th\u1ed1ng, \u0111\u1ed9 b\u1ec1n m\u00f4i tr\u01b0\u1eddng, h\u1ed7 tr\u1ee3 hi\u1ec7u chu\u1ea9n v\u00e0 kh\u1ea3 n\u0103ng b\u1ea3o tr\u00ec d\u00e0i h\u1ea1n thay v\u00ec ch\u1ec9 \u0111\u01a1n gi\u1ea3n ch\u1ecdn c\u1ea3m bi\u1ebfn c\u00f3 th\u00f4ng s\u1ed1 \u0111\u1ed9 ch\u00ednh x\u00e1c cao nh\u1ea5t.<\/p>\n\n\n\n

\n
\"C\u1ea3m<\/figure>\n\n\n\n
\"C\u1ea3m<\/figure>\n<\/figure>\n\n\n\n

Nh\u1eefng sai l\u1ea7m ph\u1ed5 bi\u1ebfn khi l\u1ef1a ch\u1ecdn c\u1ea3m bi\u1ebfn \u0111\u1ed9 ch\u00f3i v\u00e0 \u0111\u1ed9 r\u1ecdi cho \u0111\u01b0\u1eddng h\u1ea7m?<\/h2>\n\n\n\n

Vi\u1ec7c l\u1ef1a ch\u1ecdn c\u1ea3m bi\u1ebfn \u00e1nh s\u00e1ng \u0111\u01b0\u1eddng h\u1ea7m ch\u1ec9 d\u1ef1a tr\u00ean m\u1ed9t th\u00f4ng s\u1ed1 ho\u1eb7c gi\u00e1 mua ban \u0111\u1ea7u c\u00f3 th\u1ec3 t\u1ea1o ra v\u1ea5n \u0111\u1ec1 trong qu\u00e1 tr\u00ecnh l\u1eafp \u0111\u1eb7t v\u00e0 v\u1eadn h\u00e0nh l\u00e2u d\u00e0i. C\u00e1c sai l\u1ea7m ph\u1ed5 bi\u1ebfn bao g\u1ed3m:<\/p>\n\n\n\n

    \n
  • Nh\u1ea7m l\u1eabn gi\u1eefa \u0111\u1ed9 ch\u00f3i v\u00e0 \u0111\u1ed9 r\u1ecdi <\/strong>\u2014 ch\u1ecdn sai lo\u1ea1i ph\u00e9p \u0111o v\u00ec c\u1ea3 hai \u0111\u1ec1u \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho chi\u1ebfu s\u00e1ng h\u1ea7m.<\/li>\n\n\n\n
  • Ch\u1ec9 l\u1ef1a ch\u1ecdn d\u1ef1a tr\u00ean \u0111\u1ed9 ch\u00ednh x\u00e1c \u0111o l\u01b0\u1eddng <\/strong>\u2014 b\u1ecf qua hi\u1ec7u su\u1ea5t quang h\u1ecdc, \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh hi\u1ec7u chu\u1ea9n, \u0111\u1eb7c t\u00ednh \u0111\u00e1p \u1ee9ng v\u00e0 y\u00eau c\u1ea7u \u0111o l\u01b0\u1eddng th\u1ef1c t\u1ebf.<\/li>\n\n\n\n
  • B\u1ecf qua tr\u01b0\u1eddng nh\u00ecn v\u00e0 h\u00ecnh h\u1ecdc l\u1eafp \u0111\u1eb7t <\/strong>\u2014 g\u00f3c quan s\u00e1t, h\u01b0\u1edbng c\u1ea3m bi\u1ebfn ho\u1eb7c m\u1eb7t ph\u1eb3ng \u0111o kh\u00f4ng ch\u00ednh x\u00e1c c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u00ednh \u0111\u1ea1i di\u1ec7n c\u1ee7a d\u1eef li\u1ec7u thu th\u1eadp \u0111\u01b0\u1ee3c.<\/li>\n\n\n\n
  • S\u1eed d\u1ee5ng sai v\u1ecb tr\u00ed \u0111o<\/strong> \u2014 \u00e1p d\u1ee5ng c\u1ea3m bi\u1ebfn \u0111\u1ed9 ch\u00f3i v\u00e0 \u0111\u1ed9 r\u1ecdi m\u00e0 kh\u00f4ng xem x\u00e9t li\u1ec7u d\u1ef1 \u00e1n c\u00f3 y\u00eau c\u1ea7u \u0111o \u0111i\u1ec1u ki\u1ec7n th\u1ecb gi\u00e1c t\u1ea1i c\u1eeda h\u1ea7m hay ki\u1ec3m tra m\u1ee9c \u0111\u1ed9 chi\u1ebfu s\u00e1ng b\u00ean trong h\u1ea7m hay kh\u00f4ng.<\/li>\n\n\n\n
  • Ch\u1ec9 l\u1ef1a ch\u1ecdn theo gi\u00e1 c\u1ea3<\/strong> \u2014 chi ph\u00ed ban \u0111\u1ea7u th\u1ea5p c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn chi ph\u00ed b\u1ea3o tr\u00ec ho\u1eb7c thay th\u1ebf cao h\u01a1n n\u1ebfu c\u1ea3m bi\u1ebfn thi\u1ebfu kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng ho\u1eb7c \u0111\u1ed9 b\u1ec1n ph\u00f9 h\u1ee3p.<\/li>\n\n\n\n
  • B\u1ecf qua kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch h\u1ec7 th\u1ed1ng<\/strong> \u2014 t\u00edn hi\u1ec7u \u0111\u1ea7u ra c\u1ee7a c\u1ea3m bi\u1ebfn, giao th\u1ee9c truy\u1ec1n th\u00f4ng, ngu\u1ed3n \u0111i\u1ec7n ho\u1eb7c giao di\u1ec7n c\u00f3 th\u1ec3 kh\u00f4ng kh\u1edbp v\u1edbi h\u1ec7 th\u1ed1ng PLC, SCADA ho\u1eb7c h\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n chi\u1ebfu s\u00e1ng hi\u1ec7n c\u00f3.<\/li>\n\n\n\n
  • Kh\u00f4ng x\u00e1c minh n\u0103ng l\u1ef1c c\u1ee7a nh\u00e0 cung c\u1ea5p <\/strong>\u2014 n\u0103ng l\u1ef1c s\u1ea3n xu\u1ea5t, hi\u1ec7u chu\u1ea9n, h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt ho\u1eb7c cung c\u1ea5p ph\u1ee5 t\u00f9ng kh\u00f4ng \u0111\u1ea7y \u0111\u1ee7 c\u00f3 th\u1ec3 t\u1ea1o ra r\u1ee7i ro l\u00e2u d\u00e0i cho d\u1ef1 \u00e1n.<\/li>\n\n\n\n
  • Kh\u00f4ng x\u00e1c nh\u1eadn c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt ch\u00ednh tr\u01b0\u1edbc<\/strong> \u2014 d\u1ea3i \u0111o, c\u1ea5p b\u1ea3o v\u1ec7 IP, nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng, th\u1eddi gian \u0111\u00e1p \u1ee9ng, giao di\u1ec7n \u0111\u1ea7u ra v\u00e0 giao th\u1ee9c truy\u1ec1n th\u00f4ng c\u1ea7n \u0111\u01b0\u1ee3c ki\u1ec3m tra \u0111\u1ed1i chi\u1ebfu v\u1edbi y\u00eau c\u1ea7u th\u1ef1c t\u1ebf c\u1ee7a d\u1ef1 \u00e1n.<\/li>\n<\/ul>\n\n\n\n

    Do \u0111\u00f3, vi\u1ec7c l\u1ef1a ch\u1ecdn \u0111\u00e1ng tin c\u1eady c\u1ea7n xem x\u00e9t m\u1ee5c ti\u00eau \u0111o l\u01b0\u1eddng, c\u1ea5u h\u00ecnh quang h\u1ecdc, m\u00f4i tr\u01b0\u1eddng l\u1eafp \u0111\u1eb7t, kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch h\u1ec7 th\u1ed1ng v\u00e0 h\u1ed7 tr\u1ee3 t\u1eeb nh\u00e0 cung c\u1ea5p nh\u01b0 m\u1ed9t t\u1ed5ng th\u1ec3 ho\u00e0n ch\u1ec9nh. Tr\u01b0\u1edbc khi mua s\u1eafm, c\u00e1c k\u1ef9 s\u01b0 n\u00ean x\u00e1c nh\u1eadn d\u1ea3i \u0111o v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c y\u00eau c\u1ea7u, h\u00ecnh h\u1ecdc l\u1eafp \u0111\u1eb7t, giao di\u1ec7n truy\u1ec1n th\u00f4ng, b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng v\u00e0 y\u00eau c\u1ea7u t\u00edch h\u1ee3p \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o c\u1ea3m bi\u1ebfn c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng \u0111\u00e1ng tin c\u1eady trong su\u1ed1t v\u00f2ng \u0111\u1eddi d\u1ef1 \u00e1n v\u00e0 ho\u1ea1t \u0111\u1ed9ng ch\u00ednh x\u00e1c trong to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng gi\u00e1m s\u00e1t chi\u1ebfu s\u00e1ng h\u1ea7m.<\/p>\n\n\n\n

    \n
    \"\u1ee8ng<\/figure>\n\n\n\n
    \"c\u1ea3m<\/figure>\n<\/figure>\n\n\n\n

    K\u1ebft lu\u1eadn<\/h2>\n\n\n\n

    S\u1ef1 kh\u00e1c bi\u1ec7t ch\u00ednh gi\u1eefa c\u1ea3m bi\u1ebfn \u0111\u1ed9 ch\u00f3i h\u1ea7m v\u00e0 c\u1ea3m bi\u1ebfn \u0111\u1ed9 r\u1ecdi h\u1ea7m n\u1eb1m \u1edf \u0111\u1ea1i l\u01b0\u1ee3ng tr\u1eafc quang v\u00e0 h\u00ecnh h\u1ecdc \u0111o l\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng. C\u1ea3m bi\u1ebfn \u0111\u1ed9 ch\u00f3i h\u1ea7m \u0111o \u0111\u1ed9 ch\u00f3i b\u1ec1 m\u1eb7t theo \u0111\u01a1n v\u1ecb cd\/m\u00b2, ph\u00f9 h\u1ee3p cho \u0111i\u1ec1u ki\u1ec7n c\u1eeda h\u1ea7m, \u0111\u00e1nh gi\u00e1 v\u00f9ng ng\u01b0\u1ee1ng v\u00e0 chi\u1ebfu s\u00e1ng th\u00edch \u1ee9ng. C\u1ea3m bi\u1ebfn \u0111\u1ed9 r\u1ecdi h\u1ea7m \u0111o \u00e1nh s\u00e1ng t\u1edbi theo \u0111\u01a1n v\u1ecb lux, cung c\u1ea5p d\u1eef li\u1ec7u cho vi\u1ec7c \u0111\u00e1nh gi\u00e1 m\u1ee9c \u0111\u1ed9 chi\u1ebfu s\u00e1ng b\u00ean trong, ki\u1ec3m tra x\u00e1c nh\u1eadn, nghi\u1ec7m thu v\u00e0 b\u1ea3o tr\u00ec. Hi\u1ec3u \u0111\u01b0\u1ee3c nh\u1eefng kh\u00e1c bi\u1ec7t n\u00e0y gi\u00fap c\u00e1c k\u1ef9 s\u01b0 l\u1ef1a ch\u1ecdn c\u1ea3m bi\u1ebfn ph\u00f9 h\u1ee3p theo m\u1ee5c ti\u00eau \u0111o l\u01b0\u1eddng, v\u1ecb tr\u00ed l\u1eafp \u0111\u1eb7t v\u00e0 y\u00eau c\u1ea7u h\u1ec7 th\u1ed1ng, n\u00e2ng cao \u0111\u1ed9 tin c\u1eady c\u1ee7a vi\u1ec7c gi\u00e1m s\u00e1t chi\u1ebfu s\u00e1ng h\u1ea7m.<\/p>\n\n\n\n

    \u0110\u1ed1i v\u1edbi c\u00e1c d\u1ef1 \u00e1n h\u1ea7m, c\u1ea3m bi\u1ebfn ph\u00f9 h\u1ee3p ch\u1ec9 l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a gi\u1ea3i ph\u00e1p. YanTai Sensor cung c\u1ea5p c\u00e1c gi\u1ea3i ph\u00e1p c\u1ea3m bi\u1ebfn \u0111\u1ed9 ch\u00f3i v\u00e0 \u0111\u1ed9 r\u1ecdi h\u1ea7m v\u1edbi d\u1ea3i \u0111o, giao di\u1ec7n truy\u1ec1n th\u00f4ng, ngu\u1ed3n \u0111i\u1ec7n, ph\u01b0\u01a1ng \u00e1n l\u1eafp \u0111\u1eb7t v\u00e0 t\u00f9y ch\u1ecdn b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng c\u00f3 th\u1ec3 c\u1ea5u h\u00ecnh \u0111\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u kh\u00e1c nhau c\u1ee7a d\u1ef1 \u00e1n. T\u1eeb vi\u1ec7c l\u1ef1a ch\u1ecdn c\u1ea3m bi\u1ebfn, x\u00e1c \u0111\u1ecbnh th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt \u0111\u1ebfn t\u00edch h\u1ee3p h\u1ec7 th\u1ed1ng, ch\u00fang t\u00f4i c\u00f3 th\u1ec3 h\u1ed7 tr\u1ee3 c\u00e1c k\u1ef9 s\u01b0 v\u00e0 nh\u00e0 t\u00edch h\u1ee3p h\u1ec7 th\u1ed1ng ph\u00e1t tri\u1ec3n gi\u1ea3i ph\u00e1p c\u1ea3m bi\u1ebfn th\u1ef1c t\u1ebf cho c\u00e1c \u1ee9ng d\u1ee5ng chi\u1ebfu s\u00e1ng h\u1ea7m. Li\u00ean h\u1ec7 v\u1edbi YanTai Sensor \u0111\u1ec3 th\u1ea3o lu\u1eadn v\u1ec1 y\u00eau c\u1ea7u d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n v\u00e0 nh\u1eadn \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb c\u1ea3m bi\u1ebfn ph\u00f9 h\u1ee3p.<\/p>\n\n\n