{"id":19817,"date":"2022-07-21T07:46:37","date_gmt":"2022-07-21T07:46:37","guid":{"rendered":"http:\/\/dgbellvietnam.com\/high-and-low-temperature-humidity-test-chamber\/"},"modified":"2024-10-24T20:43:37","modified_gmt":"2024-10-24T13:43:37","slug":"high-and-low-temperature-humidity-test-chamber","status":"publish","type":"post","link":"https:\/\/dgbellvietnam.com\/en\/high-and-low-temperature-humidity-test-chamber\/","title":{"rendered":"Bu\u1ed3ng th\u1eed \u0111\u1ed9 \u1ea9m nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 th\u1ea5p"},"content":{"rendered":"
\n

1. T\u1ed5ng quan<\/span><\/span><\/span><\/h1>\n

Bu\u1ed3ng th\u1eed \u0111\u1ed9 \u1ea9m nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 th\u1ea5p<\/span><\/span><\/a> l\u00e0 m\u1ed9t lo\u1ea1i thi\u1ebft b\u1ecb c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ki\u1ec3m tra \u0111\u1ed9 tin c\u1eady c\u1ee7a pin lithium, c\u00e1c s\u1ea3n ph\u1ea9m \u0111i\u1ec7n t\u1eed nh\u1ecf, linh ki\u1ec7n \u0111i\u1ec7n t\u1eed v\u00e0 v\u1eadt li\u1ec7u ho\u1eb7c \u0111\u1ec3 ki\u1ec3m tra kh\u00ed h\u1eadu c\u1ee7a c\u00e1c s\u1ea3n ph\u1ea9m kh\u00e1c. Ph\u1ea1m vi \u0111i\u1ec1u ch\u1ec9nh nhi\u1ec7t \u0111\u1ed9 c\u1ee7a ph\u00f2ng th\u00ed nghi\u1ec7m nhi\u1ec7t \u1ea9m nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 th\u1ea5p th\u01b0\u1eddng l\u00e0 +60 \u2103 ~-50 \u2103 v\u00e0 ph\u1ea1m vi \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i: trong v\u00f2ng +20 \u2103 ~ +40 \u2103, \u0111\u1ed9 \u1ea9m l\u00e0 50% ~ 95% RH; Trong v\u00f2ng +40 \u2103 ~ +60 \u2103, \u0111\u1ed9 \u1ea9m l\u00e0 30% ~ 95% RH. Do ph\u1ea1m vi nhi\u1ec7t \u0111\u1ed9 l\u1edbn v\u00e0 nhi\u1ec7t \u0111\u1ed9 \u00e2m th\u1ea5p n\u00ean h\u1ec7 th\u1ed1ng l\u00e0m l\u1ea1nh trong ph\u00f2ng th\u00ed nghi\u1ec7m t\u01b0\u01a1ng \u0111\u1ed1i ph\u1ee9c t\u1ea1p, v\u00ec v\u1eady vi\u1ec7c s\u1eed d\u1ee5ng \u0111i\u1ec1u khi\u1ec3n r\u01a1le th\u00f4ng th\u01b0\u1eddng v\u00e0 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p v\u1eadn h\u00e0nh th\u1ee7 c\u00f4ng kh\u00f4ng ch\u1ec9 ph\u1ee9c t\u1ea1p m\u00e0 c\u00f2n b\u1ea5t ti\u1ec7n khi v\u1eadn h\u00e0nh. H\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n ph\u00f2ng th\u00ed nghi\u1ec7m nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 th\u1ea5p \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n nhi\u1ec7t \u0111\u1ed9 b\u1ea7u kh\u00f4 v\u00e0 \u01b0\u1edbt v\u00e0 PLC c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c v\u1eadn h\u00e0nh th\u1ee7 c\u00f4ng v\u00e0 t\u1ef1 \u0111\u1ed9ng. N\u00f3 kh\u00f4ng ch\u1ec9 \u0111\u01a1n gi\u1ea3n trong m\u1ea1ch m\u00e0 c\u00f2n thu\u1eadn ti\u1ec7n khi v\u1eadn h\u00e0nh. H\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n n\u00e0y \u0111\u01b0\u1ee3c gi\u1edbi thi\u1ec7u d\u01b0\u1edbi \u0111\u00e2y.<\/span><\/span><\/p>\n

2.C\u1ea5u tr\u00fac bu\u1ed3ng v\u00e0 nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng<\/span><\/span><\/span><\/h1>\n

Ph\u00f2ng th\u00ed nghi\u1ec7m ch\u1ee7 y\u1ebfu bao g\u1ed3m th\u00e2n bu\u1ed3ng, m\u00e1y s\u01b0\u1edfi, m\u00e1y t\u1ea1o \u0111\u1ed9 \u1ea9m, h\u1ec7 th\u1ed1ng l\u00e0m l\u1ea1nh v\u00e0 h\u1ec7 th\u1ed1ng cung c\u1ea5p kh\u00f4ng kh\u00ed. \u00c1p d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p c\u00e2n b\u1eb1ng nhi\u1ec7t \u0111\u1ed9 v\u00e0 kh\u1ea3 n\u0103ng l\u00e0m m\u00e1t \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh v\u00e0 ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9 b\u1ea7u kh\u00f4 v\u00e0 b\u1ea7u \u01b0\u1edbt c\u1ee7a kh\u00f4ng kh\u00ed, v\u00e0 h\u00ecnh th\u1ee9c ph\u00e2n ph\u1ed1i kh\u00f4ng kh\u00ed c\u1ee7a lu\u1ed3ng kh\u00f4ng kh\u00ed h\u1ed3i l\u01b0u d\u01b0\u1edbi ngu\u1ed3n cung c\u1ea5p kh\u00f4ng kh\u00ed to\u00e0n b\u1ed9, \u0111\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u0111\u1ed9 \u1ea9m kh\u00f4ng kh\u00ed theo y\u00eau c\u1ea7u c\u1ee7a th\u1eed nghi\u1ec7m v\u00e0 \u0111\u00e1p \u1ee9ng \u0111\u1ed9 ch\u00ednh x\u00e1c theo y\u00eau c\u1ea7u c\u1ee7a th\u1eed nghi\u1ec7m.<\/span><\/span><\/p>\n

3. Chi\u1ebfn l\u01b0\u1ee3c ki\u1ec3m so\u00e1t<\/span><\/span><\/span><\/h1>\n

M\u00e1y s\u01b0\u1edfi trong ph\u00f2ng th\u00ed nghi\u1ec7m \u0111\u01b0\u1ee3c chia th\u00e0nh hai nh\u00f3m \u0111\u1ec3 ki\u1ec3m so\u00e1t. M\u1ed9t nh\u00f3m l\u00e0 h\u1ec7 th\u1ed1ng s\u01b0\u1edfi ch\u00ednh, \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh PID b\u1eb1ng d\u1ee5ng c\u1ee5 ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9 b\u1ea7u kh\u00f4 v\u00e0 c\u00f4ng su\u1ea5t \u0111\u1ea7u ra \u0111\u01b0\u1ee3c \u0111i\u1ec1u khi\u1ec3n t\u1ef1 \u0111\u1ed9ng, v\u1edbi c\u00f4ng su\u1ea5t \u0111\u1ea7u ra t\u1eeb 0 ~ 100% (c\u00f4ng su\u1ea5t s\u01b0\u1edfi \u0111i\u1ec7n); Nh\u00f3m c\u00f2n l\u1ea1i l\u00e0 h\u1ec7 th\u1ed1ng s\u01b0\u1edfi ph\u1ee5, \u0111\u01b0\u1ee3c kh\u1edfi \u0111\u1ed9ng v\u00e0 d\u1eebng b\u1eb1ng tay ho\u1eb7c t\u1ef1 \u0111\u1ed9ng theo ch\u01b0\u01a1ng tr\u00ecnh. Ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng khi nhi\u1ec7t do h\u1ec7 th\u1ed1ng s\u01b0\u1edfi ch\u00ednh cung c\u1ea5p kh\u00f4ng \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c c\u00e1c y\u00eau c\u1ea7u th\u1eed nghi\u1ec7m. Gi\u1ed1ng nh\u01b0 m\u00e1y s\u01b0\u1edfi, m\u00e1y t\u1ea1o \u0111\u1ed9 \u1ea9m c\u0169ng \u0111\u01b0\u1ee3c chia th\u00e0nh hai nh\u00f3m. M\u1ed9t nh\u00f3m l\u00e0 m\u00e1y t\u1ea1o \u0111\u1ed9 \u1ea9m ch\u00ednh, \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh PID b\u1eb1ng d\u1ee5ng c\u1ee5 ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9 b\u1ea7u \u01b0\u1edbt v\u00e0 c\u00f4ng su\u1ea5t \u0111\u1ea7u ra \u0111\u01b0\u1ee3c \u0111i\u1ec1u khi\u1ec3n t\u1ef1 \u0111\u1ed9ng, v\u1edbi c\u00f4ng su\u1ea5t \u0111\u1ea7u ra t\u1eeb 0 ~ 100% (c\u00f4ng su\u1ea5t t\u1ea1o \u0111\u1ed9 \u1ea9m \u0111i\u1ec7n); Nh\u00f3m c\u00f2n l\u1ea1i l\u00e0 h\u1ec7 th\u1ed1ng t\u1ea1o \u0111\u1ed9 \u1ea9m ph\u1ee5, \u0111\u01b0\u1ee3c kh\u1edfi \u0111\u1ed9ng v\u00e0 d\u1eebng b\u1eb1ng tay ho\u1eb7c t\u1ef1 \u0111\u1ed9ng theo ch\u01b0\u01a1ng tr\u00ecnh. Ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng khi l\u01b0\u1ee3ng \u0111\u1ed9 \u1ea9m do h\u1ec7 th\u1ed1ng t\u1ea1o \u0111\u1ed9 \u1ea9m ch\u00ednh cung c\u1ea5p kh\u00f4ng \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c c\u00e1c y\u00eau c\u1ea7u th\u1eed nghi\u1ec7m. H\u1ec7 th\u1ed1ng l\u00e0m l\u1ea1nh trong ph\u00f2ng th\u00ed nghi\u1ec7m l\u00e0 h\u1ec7 th\u1ed1ng l\u00e0m l\u1ea1nh theo t\u1ea7ng bao g\u1ed3m hai m\u00e1y n\u00e9n nhi\u1ec7t \u0111\u1ed9 th\u1ea5p. C\u00f3 ch\u00edn van \u0111i\u1ec7n t\u1eeb trong h\u1ec7 th\u1ed1ng. C\u00e1c k\u1ebft h\u1ee3p kh\u00e1c nhau c\u1ee7a t\u1ee7 l\u1ea1nh v\u00e0 van \u0111i\u1ec7n t\u1eeb t\u1ea1o ra c\u00f4ng su\u1ea5t l\u00e0m l\u1ea1nh kh\u00e1c nhau. H\u1ec7 th\u1ed1ng l\u00e0m l\u1ea1nh c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia th\u00e0nh n\u0103m c\u1ea5p \u0111\u1ed9 theo c\u00f4ng su\u1ea5t l\u00e0m l\u1ea1nh.<\/span><\/span><\/p>\n

3.1 Chi\u1ebfn l\u01b0\u1ee3c ki\u1ec3m so\u00e1t t\u1ef1 \u0111\u1ed9ng<\/span><\/span><\/span><\/h2>\n

Theo nguy\u00ean l\u00fd l\u00e0m vi\u1ec7c c\u1ee7a ph\u00f2ng th\u00ed nghi\u1ec7m, th\u00f4ng th\u01b0\u1eddng h\u1ec7 th\u1ed1ng l\u00e0m l\u1ea1nh ho\u1ea1t \u0111\u1ed9ng \u1edf m\u1ed9t m\u1ee9c \u0111\u1ed9 l\u00e0m l\u1ea1nh nh\u1ea5t \u0111\u1ecbnh v\u00e0 c\u00f4ng su\u1ea5t l\u00e0m l\u1ea1nh t\u01b0\u01a1ng \u0111\u1ed1i \u1ed5n \u0111\u1ecbnh l\u00e0 \u0111\u1ea7u v\u00e0o. \u0110\u1ea7u v\u00e0o c\u1ee7a h\u1ec7 th\u1ed1ng s\u01b0\u1edfi \u1ea5m ch\u00ednh v\u00e0 \u0111\u1ed9 \u1ea9m ch\u00ednh \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh t\u1ef1 \u0111\u1ed9ng b\u1edfi b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n nhi\u1ec7t \u0111\u1ed9 b\u1ea7u kh\u00f4 v\u00e0 \u01b0\u1edbt. Khi c\u00f4ng su\u1ea5t s\u01b0\u1edfi \u1ea5m ch\u00ednh ho\u1eb7c \u0111\u1ed9 \u1ea9m ch\u00ednh kh\u00f4ng \u0111\u1ee7, h\u1ec7 th\u1ed1ng s\u01b0\u1edfi \u1ea5m ph\u1ee5 ho\u1eb7c \u0111\u1ed9 \u1ea9m ph\u1ee5 s\u1ebd \u0111\u01b0\u1ee3c kh\u1edfi \u0111\u1ed9ng. Khi c\u00f4ng su\u1ea5t l\u00e0m m\u00e1t \u0111\u01b0\u1ee3c k\u1ebft h\u1ee3p h\u1ee3p l\u00fd v\u1edbi c\u00f4ng su\u1ea5t s\u01b0\u1edfi \u1ea5m v\u00e0 c\u00f4ng su\u1ea5t t\u1ea1o \u1ea9m, h\u1ec7 th\u1ed1ng s\u1ebd nhanh ch\u00f3ng \u0111\u1ea1t \u0111\u01b0\u1ee3c s\u1ef1 c\u00e2n b\u1eb1ng \u0111\u1ed9ng v\u00e0 nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u0111\u1ed9 \u1ea9m trong ph\u00f2ng th\u00ed nghi\u1ec7m s\u1ebd s\u1edbm \u1ed5n \u0111\u1ecbnh. C\u00f4ng su\u1ea5t l\u00e0m m\u00e1t \u0111\u01b0\u1ee3c \u0111\u1ea7u t\u01b0 v\u00e0o h\u1ec7 th\u1ed1ng l\u00e0m l\u1ea1nh nhi\u1ec1u hay \u00edt C\u00f3 th\u1ec3 ph\u00e2n t\u00edch gi\u00e1n ti\u1ebfp b\u1eb1ng c\u00e1ch quan s\u00e1t tham s\u1ed1 \u0111\u1ea7u ra c\u1ee7a b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u0111\u1ed9 \u1ea9m. N\u1ebfu gi\u00e1 tr\u1ecb c\u1ee7a tham s\u1ed1 \u0111\u1ea7u ra r\u1ea5t l\u1edbn (100%), nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u0111\u1ed9 \u1ea9m trong ph\u00f2ng th\u00ed nghi\u1ec7m v\u1eabn th\u1ea5p h\u01a1n gi\u00e1 tr\u1ecb c\u00e0i \u0111\u1eb7t, cho bi\u1ebft \u0111\u1ea7u v\u00e0o l\u00e0m m\u00e1t qu\u00e1 nhi\u1ec1u. N\u1ebfu gi\u00e1 tr\u1ecb \u0111\u1ea7u ra r\u1ea5t nh\u1ecf (0%), nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u0111\u1ed9 \u1ea9m trong ph\u00f2ng th\u00ed nghi\u1ec7m v\u1eabn cao h\u01a1n gi\u00e1 tr\u1ecb c\u00e0i \u0111\u1eb7t, cho bi\u1ebft \u0111\u1ea7u v\u00e0o l\u00e0m m\u00e1t qu\u00e1 \u00edt. C\u00f3 th\u1ec3 th\u1ea5y r\u1eb1ng th\u00f4ng s\u1ed1 \u0111\u1ea7u ra c\u1ee7a b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u0111\u1ed9 \u1ea9m c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m c\u01a1 s\u1edf cho vi\u1ec7c \u0111i\u1ec1u khi\u1ec3n t\u1ef1 \u0111\u1ed9ng giai \u0111o\u1ea1n l\u00e0m l\u1ea1nh.<\/span><\/span><\/p>\n

4.Ch\u1ee9c n\u0103ng h\u1ec7 th\u1ed1ng<\/span><\/span><\/span><\/h1>\n

(1) Ch\u1ee9c n\u0103ng chuy\u1ec3n \u0111\u1ed5i th\u1ee7 c\u00f4ng v\u00e0 t\u1ef1 \u0111\u1ed9ng, ch\u1ecdn tr\u00ean b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n. Khi ch\u1ecdn thao t\u00e1c th\u1ee7 c\u00f4ng, m\u1ed7i n\u00fat chuy\u1ec3n \u0111\u1ed5i c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c v\u1eadn h\u00e0nh tr\u1ef1c ti\u1ebfp tr\u00ean b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n. Tuy nhi\u00ean, do l\u01b0\u1ee3ng \u0111\u1ea7u v\u00e0o c\u1ee7a nhi\u1ec7t, \u0111\u1ed9 \u1ea9m v\u00e0 l\u00e0m l\u1ea1nh kh\u00e1c nhau trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n l\u00e0m vi\u1ec7c kh\u00e1c nhau, n\u00ean c\u1ea7n c\u00f3 nh\u00e2n vi\u00ean c\u00f3 kinh nghi\u1ec7m \u0111\u1ec3 v\u1eadn h\u00e0nh. Khi ch\u1ecdn t\u1ef1 \u0111\u1ed9ng, t\u1ea5t c\u1ea3 c\u00e1c c\u00f4ng t\u1eafc thi\u1ebft b\u1ecb \u0111\u1ec1u \u0111\u01b0\u1ee3c b\u1eadt v\u00e0 l\u01b0\u1ee3ng \u0111\u1ea7u v\u00e0o th\u1ef1c t\u1ebf c\u1ee7a nhi\u1ec7t, \u0111\u1ed9 \u1ea9m v\u00e0 l\u00e0m l\u1ea1nh \u0111\u01b0\u1ee3c \u0111i\u1ec1u khi\u1ec3n theo ch\u01b0\u01a1ng tr\u00ecnh, thao t\u00e1c \u0111\u01a1n gi\u1ea3n.<\/span><\/span><\/p>\n

Trong qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh, n\u1ebfu th\u1eddi gian \u1ed5n \u0111\u1ecbnh nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u0111\u1ed9 \u1ea9m \u0111i\u1ec1u khi\u1ec3n t\u1ef1 \u0111\u1ed9ng d\u00e0i, c\u00f3 th\u1ec3 can thi\u1ec7p th\u00f4ng qua c\u00f4ng t\u1eafc c\u1ee7a b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n. V\u00ed d\u1ee5, khi thay \u0111\u1ed5i t\u1eeb nhi\u1ec7t \u0111\u1ed9 th\u1ea5p sang nhi\u1ec7t \u0111\u1ed9 cao, theo chi\u1ebfn l\u01b0\u1ee3c \u0111i\u1ec1u khi\u1ec3n t\u1ef1 \u0111\u1ed9ng, m\u1ee9c \u0111\u1ed9 l\u00e0m l\u1ea1nh s\u1ebd gi\u1ea3m t\u1eebng m\u1ee9c, \u0111i\u1ec1u n\u00e0y \u0111\u00f2i h\u1ecfi m\u1ed9t th\u1eddi gian tr\u1ec5 nh\u1ea5t \u0111\u1ecbnh. L\u00fac n\u00e0y, b\u1ea1n c\u00f3 th\u1ec3 tr\u1ef1c ti\u1ebfp t\u1eaft t\u1ea5t c\u1ea3 c\u00e1c t\u1ee7 l\u1ea1nh v\u00e0 l\u00e0m n\u00f3ng ch\u00fang. Khi nhi\u1ec7t \u0111\u1ed9 g\u1ea7n v\u1edbi gi\u00e1 tr\u1ecb c\u00e0i \u0111\u1eb7t, h\u00e3y b\u1eadt l\u1ea1i c\u00f4ng t\u1eafc t\u1ee7 l\u1ea1nh, \u0111\u01b0\u1ee3c \u0111i\u1ec1u khi\u1ec3n b\u1edfi ch\u01b0\u01a1ng tr\u00ecnh.<\/span><\/span><\/p>\n

(2) Th\u1eddi gian th\u1eed nghi\u1ec7m c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp th\u1ee7 c\u00f4ng. Sau khi th\u1eed nghi\u1ec7m, t\u1eaft m\u00e1y theo tr\u00ecnh t\u1ef1. Sau khi m\u00e1y l\u00e0m l\u1ea1nh, m\u00e1y s\u01b0\u1edfi v\u00e0 m\u00e1y t\u1ea1o \u0111\u1ed9 \u1ea9m d\u1eebng l\u1ea1i, qu\u1ea1t s\u1ebd ti\u1ebfp t\u1ee5c ho\u1ea1t \u0111\u1ed9ng trong 2 ph\u00fat r\u1ed3i d\u1eebng l\u1ea1i, th\u1ed5i kh\u00ed n\u00f3ng v\u00e0 \u1ea9m trong t\u1ee7 \u0111i\u1ec1u h\u00f2a ra ngo\u00e0i \u0111\u1ec3 tr\u00e1nh c\u00e1c thi\u1ebft b\u1ecb trong t\u1ee7 \u0111i\u1ec1u h\u00f2a b\u1ecb r\u1ec9 s\u00e9t.<\/span><\/span><\/p>\n

(3) Ch\u1ee9c n\u0103ng b\u1ea3o v\u1ec7 an to\u00e0n v\u00e0 b\u00e1o \u0111\u1ed9ng.<\/span><\/span><\/p>\n

M\u1ea1ch \u0111i\u1ec1u khi\u1ec3n h\u1ec7 th\u1ed1ng c\u00f3 c\u00e1c ch\u1ee9c n\u0103ng b\u1ea3o v\u1ec7 an to\u00e0n th\u00f4ng th\u01b0\u1eddng nh\u01b0 qu\u00e1 t\u1ea3i, d\u01b0\u1edbi \u0111i\u1ec7n \u00e1p, h\u1edf m\u1ea1ch v\u00e0 thi\u1ebfu \u0111i\u1ec7n. M\u00e1y l\u00e0m l\u1ea1nh l\u00e0 m\u00e1y l\u00e0m l\u1ea1nh v\u00e0 b\u1ed9 b\u1ea3o v\u1ec7 d\u00f2ng n\u01b0\u1edbc \u0111\u01b0\u1ee3c \u0111\u1eb7t trong \u0111\u01b0\u1eddng \u1ed1ng n\u01b0\u1edbc l\u00e0m m\u00e1t. Khi d\u00f2ng n\u01b0\u1edbc th\u1ea5p h\u01a1n m\u1ed9t gi\u00e1 tr\u1ecb c\u00e0i \u0111\u1eb7t nh\u1ea5t \u0111\u1ecbnh, b\u1ed9 b\u1ea3o v\u1ec7 d\u00f2ng n\u01b0\u1edbc s\u1ebd ho\u1ea1t \u0111\u1ed9ng v\u00e0 m\u00e1y l\u00e0m l\u1ea1nh d\u1eebng l\u1ea1i. Ngo\u00e0i ra, m\u00e1y l\u00e0m l\u1ea1nh c\u00f3 b\u1ea3o v\u1ec7 \u00e1p su\u1ea5t d\u1ea7u, b\u1ea3o v\u1ec7 nhi\u1ec7t \u0111\u1ed9, b\u1ea3o v\u1ec7 \u00e1p su\u1ea5t cao v\u00e0 th\u1ea5p, v.v. Ph\u00f2ng th\u00ed nghi\u1ec7m c\u00f3 ch\u1ee9c n\u0103ng b\u1ea3o v\u1ec7 nhi\u1ec7t \u0111\u1ed9 cao. N\u1ebfu nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n m\u1ed9t nhi\u1ec7t \u0111\u1ed9 nh\u1ea5t \u0111\u1ecbnh, t\u1ea5t c\u1ea3 c\u00e1c thi\u1ebft b\u1ecb s\u1ebd t\u1ef1 \u0111\u1ed9ng ng\u1eaft \u0111\u1ec3 ng\u0103n ng\u1eeba h\u1ecfa ho\u1ea1n. M\u00e1y t\u1ea1o \u0111\u1ed9 \u1ea9m c\u00f3 ch\u1ee9c n\u0103ng ng\u0103n ng\u1eeba ch\u00e1y kh\u00f4. To\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng c\u00f3 ch\u1ee9c n\u0103ng b\u1ea3o v\u1ec7 ho\u00e0n ch\u1ec9nh, c\u00f3 \u00e2m thanh v\u00e0 \u0111\u00e8n nh\u1eafc nh\u1edf c\u00f9ng l\u00fac.<\/span><\/span><\/p>\n

5.T\u00f3m t\u1eaft<\/span><\/span><\/span><\/h1>\n

H\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n tr\u00ean \u0111\u00e3 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng trong thi\u1ebft b\u1ecb, hi\u1ec7u qu\u1ea3 \u0111i\u1ec1u khi\u1ec3n t\u1ef1 \u0111\u1ed9ng t\u1ed1t. Th\u1eddi gian \u1ed5n \u0111\u1ecbnh nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u0111\u1ed9 \u1ea9m trong qu\u00e1 tr\u00ecnh \u0111i\u1ec1u khi\u1ec3n t\u1ef1 \u0111\u1ed9ng d\u00e0i h\u01a1n m\u1ed9t ch\u00fat so v\u1edbi th\u1eddi gian \u0111i\u1ec1u khi\u1ec3n th\u1ee7 c\u00f4ng, nh\u01b0ng \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c th\u1eddi gian \u1ed5n \u0111\u1ecbnh theo y\u00eau c\u1ea7u c\u1ee7a h\u1ee3p \u0111\u1ed3ng. Ph\u1ea1m vi dao \u0111\u1ed9ng sau khi \u1ed5n \u0111\u1ecbnh nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u0111\u1ed9 \u1ea9m \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u th\u1eed nghi\u1ec7m v\u00e0 \u0111\u1ea1t \u0111\u1ed9 ch\u00ednh x\u00e1c theo thi\u1ebft k\u1ebf. V\u00ec thao t\u00e1c \u0111\u01a1n gi\u1ea3n n\u00ean \u0111\u01b0\u1ee3c ng\u01b0\u1eddi v\u1eadn h\u00e0nh \u01b0a chu\u1ed9ng h\u01a1n, t\u1ef7 l\u1ec7 s\u1eed d\u1ee5ng \u0111i\u1ec1u khi\u1ec3n t\u1ef1 \u0111\u1ed9ng t\u01b0\u01a1ng \u0111\u1ed1i cao.<\/span><\/span><\/p>\n

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<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

1. T\u1ed5ng quan Bu\u1ed3ng th\u1eed \u0111\u1ed9 \u1ea9m nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 th\u1ea5p l\u00e0 m\u1ed9t lo\u1ea1i thi\u1ebft b\u1ecb c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ki\u1ec3m tra \u0111\u1ed9 tin c\u1eady c\u1ee7a pin lithium, c\u00e1c s\u1ea3n ph\u1ea9m \u0111i\u1ec7n t\u1eed nh\u1ecf, linh ki\u1ec7n \u0111i\u1ec7n t\u1eed v\u00e0 v\u1eadt li\u1ec7u ho\u1eb7c \u0111\u1ec3 ki\u1ec3m tra kh\u00ed h\u1eadu c\u1ee7a c\u00e1c s\u1ea3n ph\u1ea9m kh\u00e1c.<\/p>\n","protected":false},"author":1,"featured_media":19818,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[88],"tags":[],"class_list":["post-19817","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc-cong-nghe"],"acf":[],"_links":{"self":[{"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/19817","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/comments?post=19817"}],"version-history":[{"count":1,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/19817\/revisions"}],"predecessor-version":[{"id":22058,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/19817\/revisions\/22058"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/media\/19818"}],"wp:attachment":[{"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/media?parent=19817"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/categories?post=19817"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/tags?post=19817"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}