{"id":19811,"date":"2022-08-11T08:21:37","date_gmt":"2022-08-11T08:21:37","guid":{"rendered":"http:\/\/dgbellvietnam.com\/shock-test-system\/"},"modified":"2024-10-24T20:37:17","modified_gmt":"2024-10-24T13:37:17","slug":"shock-test-system","status":"publish","type":"post","link":"https:\/\/dgbellvietnam.com\/en\/shock-test-system\/","title":{"rendered":"H\u1ec7 th\u1ed1ng th\u1eed nghi\u1ec7m s\u1ed1c"},"content":{"rendered":"
\n

1. T\u1ed5ng quan v\u1ec1 b\u00e0i th\u1eed<\/span><\/span><\/strong><\/span><\/span><\/h1>\n

T\u00e1c \u0111\u1ed9ng m\u00e0 s\u1ea3n ph\u1ea9m ph\u1ea3i ch\u1ecbu trong qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng v\u00e0 v\u1eadn chuy\u1ec3n ch\u1ee7 y\u1ebfu l\u00e0 do t\u00e1c \u0111\u1ed9ng g\u00e2y ra b\u1edfi phanh kh\u1ea9n c\u1ea5p v\u00e0 va ch\u1ea1m c\u1ee7a xe c\u1ed9, m\u00e1y bay th\u1ea3 d\u00f9 v\u00e0 r\u01a1i (h\u1ea1 c\u00e1nh kh\u1ea9n c\u1ea5p), ph\u00e1o binh ph\u00f3ng, n\u0103ng l\u01b0\u1ee3ng h\u00f3a h\u1ecdc v\u00e0 n\u0103ng l\u01b0\u1ee3ng h\u1ea1t nh\u00e2n n\u1ed5, t\u00ean l\u1eeda v\u00e0 v\u0169 kh\u00ed hi\u1ec7u su\u1ea5t cao t\u00e1ch \u0111\u00e1nh l\u1eeda v\u00e0 t\u00e1i nh\u1eadp. T\u00e1c \u0111\u1ed9ng l\u00e0 \u00e1p d\u1ee5ng l\u1ef1c xung \u0111\u1ea7u v\u00e0o m\u1ee9c cao v\u00e0o s\u1ea3n ph\u1ea9m trong th\u1eddi gian t\u01b0\u01a1ng \u0111\u1ed1i ng\u1eafn.<\/span><\/span><\/p>\n

Va ch\u1ea1m l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh v\u1eadt l\u00fd r\u1ea5t ph\u1ee9c t\u1ea1p. Gi\u1ed1ng nh\u01b0 rung \u0111\u1ed9ng ng\u1eabu nhi\u00ean, n\u00f3 c\u00f3 ph\u1ed5 t\u1ea7n s\u1ed1 li\u00ean t\u1ee5c, nh\u01b0ng n\u00f3 c\u0169ng l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh t\u1ea1m th\u1eddi v\u00e0 kh\u00f4ng c\u00f3 \u0111i\u1ec1u ki\u1ec7n ng\u1eabu nhi\u00ean tr\u1ea1ng th\u00e1i \u1ed5n \u0111\u1ecbnh. Sau khi s\u1ea3n ph\u1ea9m b\u1ecb va ch\u1ea1m, tr\u1ea1ng th\u00e1i chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a h\u1ec7 th\u1ed1ng c\u01a1 h\u1ecdc c\u1ee7a n\u00f3 s\u1ebd thay \u0111\u1ed5i \u0111\u1ed9t ng\u1ed9t v\u00e0 t\u1ea1o ra ph\u1ea3n \u1ee9ng va ch\u1ea1m t\u1ea1m th\u1eddi. Ph\u1ea3n \u1ee9ng c\u1ee7a s\u1ea3n ph\u1ea9m \u0111\u1ed1i v\u1edbi m\u00f4i tr\u01b0\u1eddng va ch\u1ea1m c\u01a1 h\u1ecdc c\u00f3 c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m sau: dao \u0111\u1ed9ng t\u1ea7n s\u1ed1 cao, th\u1eddi gian ng\u1eafn, th\u1eddi gian t\u0103ng ban \u0111\u1ea7u r\u00f5 r\u00e0ng v\u00e0 c\u00e1c \u0111\u1ec9nh d\u01b0\u01a1ng v\u00e0 \u00e2m b\u1eadc cao.<\/span><\/span><\/p>\n

Ph\u1ea3n \u1ee9ng \u0111\u1ec9nh c\u1ee7a s\u1ed1c c\u01a1 h\u1ecdc th\u01b0\u1eddng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c bao b\u1ecdc b\u1edfi m\u1ed9t h\u00e0m m\u0169 gi\u1ea3m d\u1ea7n theo th\u1eddi gian. \u0110\u1ed1i v\u1edbi c\u00e1c s\u1ea3n ph\u1ea9m c\u00f3 \u0111\u1eb7c \u0111i\u1ec3m \u0111a ph\u01b0\u01a1ng th\u1ee9c ph\u1ee9c t\u1ea1p, ph\u1ea3n \u1ee9ng va ch\u1ea1m bao g\u1ed3m hai th\u00e0nh ph\u1ea7n ph\u1ea3n \u1ee9ng t\u1ea7n s\u1ed1 sau: th\u00e0nh ph\u1ea7n ph\u1ea3n \u1ee9ng t\u1ea7n s\u1ed1 c\u01b0\u1ee1ng b\u1ee9c c\u1ee7a m\u00f4i tr\u01b0\u1eddng k\u00edch th\u00edch b\u00ean ngo\u00e0i \u00e1p d\u1ee5ng cho s\u1ea3n ph\u1ea9m v\u00e0 th\u00e0nh ph\u1ea7n ph\u1ea3n \u1ee9ng t\u1ea7n s\u1ed1 t\u1ef1 nhi\u00ean c\u1ee7a s\u1ea3n ph\u1ea9m trong ho\u1eb7c sau khi \u00e1p d\u1ee5ng k\u00edch th\u00edch.<\/span><\/span><\/p>\n

Theo kh\u00e1i ni\u1ec7m v\u1eadt l\u00fd, ph\u1ea3n \u1ee9ng va ch\u1ea1m do s\u1ea3n ph\u1ea9m t\u1ea1o ra sau khi va ch\u1ea1m (t\u1ee9c l\u00e0 k\u00edch th\u00edch t\u1ee9c th\u1eddi) bi\u1ec3u th\u1ecb c\u01b0\u1eddng \u0111\u1ed9 va ch\u1ea1m th\u1ef1c t\u1ebf c\u1ee7a s\u1ea3n ph\u1ea9m. N\u1ebfu bi\u00ean \u0111\u1ed9 ph\u1ea3n \u1ee9ng t\u1ee9c th\u1eddi c\u1ee7a s\u1ea3n ph\u1ea9m v\u01b0\u1ee3t qu\u00e1 c\u01b0\u1eddng \u0111\u1ed9 c\u1ea5u tr\u00fac c\u1ee7a ch\u00ednh s\u1ea3n ph\u1ea9m, s\u1ea3n ph\u1ea9m s\u1ebd b\u1ecb h\u01b0 h\u1ecfng. C\u00f3 th\u1ec3 th\u1ea5y r\u1eb1ng thi\u1ec7t h\u1ea1i do t\u00e1c \u0111\u1ed9ng c\u1ee7a s\u1ea3n ph\u1ea9m g\u00e2y ra kh\u00e1c v\u1edbi thi\u1ec7t h\u1ea1i do hi\u1ec7u \u1ee9ng h\u01b0 h\u1ecfng t\u00edch l\u0169y g\u00e2y ra, nh\u01b0ng thu\u1ed9c v\u1ec1 thi\u1ec7t h\u1ea1i \u0111\u1ec9nh c\u1ee7a \u1ee9ng su\u1ea5t c\u1ef1c \u0111\u1ea1i so v\u1edbi c\u01b0\u1eddng \u0111\u1ed9 c\u1ea5u tr\u00fac c\u1ee7a s\u1ea3n ph\u1ea9m.<\/span><\/span><\/p>\n

Thi\u1ec7t h\u1ea1i \u0111\u1ec9nh \u0111i\u1ec3m n\u00e0y s\u1ebd g\u00e2y ra bi\u1ebfn d\u1ea1ng c\u1ea5u tr\u00fac, l\u1eafp \u0111\u1eb7t l\u1ecfng l\u1ebbo, n\u1ee9t ho\u1eb7c th\u1eadm ch\u00ed g\u00e3y, k\u1ebft n\u1ed1i \u0111i\u1ec7n l\u1ecfng l\u1ebbo, k\u1ebft n\u1ed1i k\u00e9m, ph\u00e1 v\u1ee1 v\u00e0 l\u00e0m cho s\u1ea3n ph\u1ea9m kh\u00f4ng \u1ed5n \u0111\u1ecbnh. Thi\u1ec7t h\u1ea1i \u0111\u1ec9nh \u0111i\u1ec3m n\u00e0y c\u0169ng c\u00f3 th\u1ec3 thay \u0111\u1ed5i v\u1ecb tr\u00ed t\u01b0\u01a1ng \u0111\u1ed1i c\u1ee7a t\u1eebng \u0111\u01a1n v\u1ecb trong s\u1ea3n ph\u1ea9m, d\u1eabn \u0111\u1ebfn gi\u1ea3m hi\u1ec7u su\u1ea5t ho\u1eb7c v\u01b0\u1ee3t qu\u00e1 dung sai, v\u00e0 th\u1eadm ch\u00ed l\u00e0m h\u1ecfng c\u00e1c th\u00e0nh ph\u1ea7n ho\u1eb7c b\u1ed9 ph\u1eadn, khi\u1ebfn ch\u00fang kh\u00f4ng th\u1ec3 ho\u1ea1t \u0111\u1ed9ng.<\/span><\/span><\/p>\n

T\u00f3m l\u1ea1i:<\/span><\/span><\/p>\n

(1) S\u1ea3n ph\u1ea9m b\u1ecb h\u1ecfng do l\u1ef1c ma s\u00e1t gi\u1eefa c\u00e1c b\u1ed9 ph\u1eadn t\u0103ng ho\u1eb7c gi\u1ea3m ho\u1eb7c do s\u1ef1 can thi\u1ec7p l\u1eabn nhau.<\/span><\/span><\/p>\n

(2) \u0110\u1ed9 b\u1ec1n c\u00e1ch \u0111i\u1ec7n c\u1ee7a s\u1ea3n ph\u1ea9m thay \u0111\u1ed5i, \u0111i\u1ec7n tr\u1edf c\u00e1ch \u0111i\u1ec7n gi\u1ea3m v\u00e0 c\u01b0\u1eddng \u0111\u1ed9 t\u1eeb tr\u01b0\u1eddng v\u00e0 t\u0129nh \u0111i\u1ec7n thay \u0111\u1ed5i.<\/span><\/span><\/p>\n

(3) L\u1ed7i bo m\u1ea1ch s\u1ea3n ph\u1ea9m, h\u01b0 h\u1ecfng v\u00e0 l\u1ed7i \u0111\u1ea7u n\u1ed1i \u0111i\u1ec7n (\u0111\u00f4i khi, s\u1ea3n ph\u1ea9m b\u1ecb t\u00e1c \u0111\u1ed9ng. Ph\u1ea7n d\u01b0 th\u1eeba tr\u00ean bo m\u1ea1ch c\u00f3 th\u1ec3 di chuy\u1ec3n v\u00e0 g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng \u0111o\u1ea3n m\u1ea1ch).<\/span><\/span><\/p>\n

(4) Khi c\u00e1c b\u1ed9 ph\u1eadn k\u1ebft c\u1ea5u ho\u1eb7c kh\u00f4ng k\u1ebft c\u1ea5u c\u1ee7a s\u1ea3n ph\u1ea9m b\u1ecb \u1ee9ng su\u1ea5t qu\u00e1 m\u1ee9c, s\u1ea3n ph\u1ea9m s\u1ebd t\u1ea1o ra bi\u1ebfn d\u1ea1ng c\u01a1 h\u1ecdc v\u0129nh vi\u1ec5n.<\/span><\/span><\/p>\n

(5) Khi v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n b\u1ec1n, c\u00e1c b\u1ed9 ph\u1eadn c\u01a1 h\u1ecdc c\u1ee7a s\u1ea3n ph\u1ea9m b\u1ecb h\u01b0 h\u1ecfng.<\/span><\/span><\/p>\n

(6) S\u1ef1 m\u1ecfi t\u0103ng t\u1ed1c c\u1ee7a v\u1eadt li\u1ec7u<\/span><\/span><\/p>\n

C\u00f3 th\u1ec3 th\u1ea5y t\u1eeb m\u00f4 t\u1ea3 tr\u00ean r\u1eb1ng t\u00e1c \u0111\u1ed9ng s\u1ebd c\u00f3 t\u00e1c \u0111\u1ed9ng c\u00f3 h\u1ea1i \u0111\u1ebfn c\u1ea5u tr\u00fac v\u00e0 t\u00ednh to\u00e0n v\u1eb9n ch\u1ee9c n\u0103ng c\u1ee7a to\u00e0n b\u1ed9 s\u1ea3n ph\u1ea9m. M\u1ee9c \u0111\u1ed9 t\u00e1c \u0111\u1ed9ng c\u00f3 h\u1ea1i n\u00e0y th\u01b0\u1eddng thay \u0111\u1ed5i theo s\u1ef1 t\u0103ng ho\u1eb7c gi\u1ea3m c\u1ee7a bi\u00ean \u0111\u1ed9 v\u00e0 th\u1eddi gian t\u00e1c \u0111\u1ed9ng. Khi th\u1eddi gian t\u00e1c \u0111\u1ed9ng nh\u1ea5t qu\u00e1n v\u1edbi ngh\u1ecbch \u0111\u1ea3o c\u1ee7a t\u1ea7n s\u1ed1 t\u1ef1 nhi\u00ean c\u1ee7a s\u1ea3n ph\u1ea9m ho\u1eb7c th\u00e0nh ph\u1ea7n t\u1ea7n s\u1ed1 ch\u00ednh c\u1ee7a d\u1ea1ng s\u00f3ng m\u00f4i tr\u01b0\u1eddng t\u00e1c \u0111\u1ed9ng \u0111\u1ea7u v\u00e0o nh\u1ea5t qu\u00e1n v\u1edbi t\u1ea7n s\u1ed1 t\u1ef1 nhi\u00ean c\u1ee7a s\u1ea3n ph\u1ea9m, t\u00e1c \u0111\u1ed9ng c\u00f3 h\u1ea1i \u0111\u1ebfn c\u1ea5u tr\u00fac s\u1ea3n ph\u1ea9m v\u00e0 t\u00ednh to\u00e0n v\u1eb9n ch\u1ee9c n\u0103ng s\u1ebd t\u0103ng th\u00eam.<\/span><\/span><\/p>\n

Do \u0111\u00f3, \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o s\u1ea3n ph\u1ea9m c\u00f3 \u0111\u1ed9 b\u1ec1n va \u0111\u1eadp t\u1ed1t v\u00e0 ho\u1ea1t \u0111\u1ed9ng tin c\u1eady, \u1ed5n \u0111\u1ecbnh trong m\u00f4i tr\u01b0\u1eddng va \u0111\u1eadp ho\u1eb7c sau va \u0111\u1eadp, th\u1eed nghi\u1ec7m va \u0111\u1eadp l\u00e0 ph\u01b0\u01a1ng ph\u00e1p v\u00e0 bi\u1ec7n ph\u00e1p quan tr\u1ecdng \u0111\u1ec3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 n\u00e0y.<\/span><\/span><\/p>\n

Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m v\u1ec1 c\u1ea5u tr\u00fac v\u00e0 ch\u1ee9c n\u0103ng c\u1ee7a s\u1ea3n ph\u1ea9m d\u01b0\u1edbi t\u00e1c \u0111\u1ed9ng c\u01a1 h\u1ecdc trong su\u1ed1t th\u1eddi gian s\u1eed d\u1ee5ng. M\u00e1y m\u00f3c nh\u01b0 v\u1eady th\u01b0\u1eddng b\u1ecb gi\u1edbi h\u1ea1n \u1edf d\u1ea3i t\u1ea7n s\u1ed1 kh\u00f4ng qu\u00e1 10000 Hz v\u00e0 th\u1eddi l\u01b0\u1ee3ng kh\u00f4ng qu\u00e1 1,0 gi\u00e2y. Trong h\u1ea7u h\u1ebft c\u00e1c tr\u01b0\u1eddng h\u1ee3p, t\u1ea7n s\u1ed1 ph\u1ea3n h\u1ed3i ch\u00ednh c\u1ee7a s\u1ea3n ph\u1ea9m kh\u00f4ng v\u01b0\u1ee3t qu\u00e1 2000 Hz v\u00e0 th\u1eddi l\u01b0\u1ee3ng ph\u1ea3n h\u1ed3i nh\u1ecf h\u01a1n 0,1 gi\u00e2y<\/span><\/span><\/p>\n

2. \u0110i\u1ec1u ki\u1ec7n th\u1eed nghi\u1ec7m<\/span><\/span><\/span><\/strong><\/span><\/h1>\n

(1) Gia t\u1ed1c \u0111\u1ec9nh<\/span><\/span><\/p>\n

\u0110\u1ed9 l\u1edbn c\u1ee7a gia t\u1ed1c c\u1ef1c \u0111\u1ea1i c\u00f3 th\u1ec3 ph\u1ea3n \u00e1nh tr\u1ef1c ti\u1ebfp \u0111\u1ed9 l\u1edbn c\u1ee7a l\u1ef1c t\u00e1c \u0111\u1ed9ng l\u00ean s\u1ea3n ph\u1ea9m. Do c\u1ea5u tr\u00fac c\u1ee7a s\u1ea3n ph\u1ea9m ch\u1ee7 y\u1ebfu l\u00e0 h\u1ec7 th\u1ed1ng tuy\u1ebfn t\u00ednh, ngay c\u1ea3 khi l\u00e0 h\u1ec7 th\u1ed1ng phi tuy\u1ebfn t\u00ednh, n\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c coi l\u00e0 h\u1ec7 th\u1ed1ng tuy\u1ebfn t\u00ednh khi bi\u1ebfn d\u1ea1ng nh\u1ecf. Do \u0111\u00f3, gia t\u1ed1c ph\u1ea3n \u1ee9ng t\u1ea1o ra sau khi s\u1ea3n ph\u1ea9m b\u1ecb t\u00e1c \u0111\u1ed9ng t\u1ef7 l\u1ec7 thu\u1eadn v\u1edbi gia t\u1ed1c k\u00edch th\u00edch. C\u00f3 th\u1ec3 th\u1ea5y r\u1eb1ng nh\u00ecn chung, gia t\u1ed1c c\u1ef1c \u0111\u1ea1i c\u00e0ng l\u1edbn th\u00ec t\u00e1c \u0111\u1ed9ng ph\u00e1 h\u1ee7y l\u00ean s\u1ea3n ph\u1ea9m c\u00e0ng l\u1edbn.<\/span><\/span><\/p>\n

(2) Th\u1eddi gian xung<\/span><\/span><\/p>\n

Th\u1eddi gian xung t\u00e1c \u0111\u1ed9ng l\u00e0 kho\u1ea3ng th\u1eddi gian m\u00e0 gia t\u1ed1c \u0111\u01b0\u1ee3c duy tr\u00ec \u1edf t\u1ef7 l\u1ec7 gia t\u1ed1c \u0111\u1ec9nh \u0111\u00e3 ch\u1ec9 \u0111\u1ecbnh. T\u00e1c \u0111\u1ed9ng c\u1ee7a th\u1eddi gian xung t\u00e1c \u0111\u1ed9ng l\u00ean s\u1ea3n ph\u1ea9m r\u1ea5t ph\u1ee9c t\u1ea1p v\u00e0 t\u00e1c \u0111\u1ed9ng c\u1ee7a n\u00f3 l\u00ean hi\u1ec7u \u1ee9ng t\u00e1c \u0111\u1ed9ng c\u00f3 li\u00ean quan \u0111\u1ebfn chu k\u1ef3 t\u1ef1 nhi\u00ean c\u1ee7a h\u1ec7 th\u1ed1ng \u0111\u01b0\u1ee3c th\u1eed nghi\u1ec7m.<\/span><\/span><\/p>\n

(3) Th\u1eddi gian t\u00e1c \u0111\u1ed9ng<\/span><\/span><\/p>\n

V\u00ec t\u00e1c \u0111\u1ed9ng ch\u1ee7 y\u1ebfu xem x\u00e9t t\u00e1c \u0111\u1ed9ng \u0111\u1ebfn \u0111\u1ed9 b\u1ec1n c\u1ef1c \u0111\u1ea1i c\u1ee7a s\u1ea3n ph\u1ea9m, ch\u1ee9 kh\u00f4ng ph\u1ea3i l\u00e0 thi\u1ec7t h\u1ea1i t\u00edch l\u0169y, n\u00ean kh\u00f4ng c\u1ea7n ph\u1ea3i ti\u1ebfn h\u00e0nh c\u00e1c th\u1eed nghi\u1ec7m l\u1eb7p l\u1ea1i tr\u00ean s\u1ea3n ph\u1ea9m. Tuy nhi\u00ean, \u0111\u1ec3 tr\u00e1nh t\u00ecnh hu\u1ed1ng b\u1ea5t tr\u1eafc, c\u0169ng c\u1ea7n m\u1ed9t s\u1ed1 l\u1ea7n t\u00e1c \u0111\u1ed9ng nh\u1ea5t \u0111\u1ecbnh. Nh\u00ecn chung, c\u1ea7n ph\u1ea3i t\u00e1c \u0111\u1ed9ng li\u00ean t\u1ee5c 3 l\u1ea7n theo m\u1ed7i h\u01b0\u1edbng. Ngo\u00e0i ra, v\u00ec ph\u1ea3n \u1ee9ng t\u1ed1i \u0111a do t\u00e1c \u0111\u1ed9ng g\u00e2y ra c\u00f3 th\u1ec3 x\u1ea3y ra theo c\u00f9ng h\u01b0\u1edbng v\u1edbi xung k\u00edch th\u00edch ho\u1eb7c ng\u01b0\u1ee3c h\u01b0\u1edbng v\u1edbi xung k\u00edch th\u00edch, n\u00ean n\u00f3i chung, th\u1eed nghi\u1ec7m t\u00e1c \u0111\u1ed9ng s\u1ebd \u0111\u01b0\u1ee3c ti\u1ebfn h\u00e0nh theo m\u1ed7i h\u01b0\u1edbng c\u1ee7a ba tr\u1ee5c vu\u00f4ng g\u00f3c v\u1edbi nhau c\u1ee7a m\u1eabu, t\u1ee9c l\u00e0 theo s\u00e1u h\u01b0\u1edbng, do \u0111\u00f3 s\u1ed1 l\u1ea7n th\u1eed nghi\u1ec7m t\u00e1c \u0111\u1ed9ng \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh l\u00e0 3 x 6 = 18.<\/span><\/span><\/p>\n

3. Y\u00eau c\u1ea7u \u0111\u1ed1i v\u1edbi thi\u1ebft b\u1ecb th\u1eed nghi\u1ec7m<\/span><\/span><\/strong><\/span><\/span><\/h1>\n

C\u00f3 nhi\u1ec1u thi\u1ebft b\u1ecb c\u00f3 th\u1ec3 t\u1ea1o ra t\u00e1c \u0111\u1ed9ng, trong \u0111\u00f3 <\/span><\/span>h\u1ec7 th\u1ed1ng th\u1eed nghi\u1ec7m s\u1ed1c<\/span><\/span><\/a> \u0111i\u1ec7n l\u00e0 quan tr\u1ecdng nh\u1ea5t. N\u00f3 kh\u00f4ng ch\u1ec9 c\u00f3 th\u1ec3 t\u1ea1o ra ph\u1ed5 ph\u1ea3n \u1ee9ng t\u00e1c \u0111\u1ed9ng v\u00e0 l\u1ecbch s\u1eed th\u1eddi gian t\u00e1c \u0111\u1ed9ng c\u1ee7a v\u1ecb tr\u00ed n\u1eb7ng m\u00e0 c\u00f2n t\u1ea1o ra d\u1ea1ng s\u00f3ng xung t\u00e1c \u0111\u1ed9ng danh ngh\u0129a. Tuy nhi\u00ean, ngo\u00e0i b\u00e0n rung \u0111i\u1ec7n, c\u00f2n c\u00f3 c\u00e1c thi\u1ebft b\u1ecb kh\u00e1c c\u00f3 th\u1ec3 t\u1ea1o ra d\u1ea1ng s\u00f3ng xung t\u00e1c \u0111\u1ed9ng danh ngh\u0129a: lo\u1ea1i th\u1ea3 t\u1ef1 do, lo\u1ea1i kh\u00ed n\u00e9n, lo\u1ea1i \u00e1p su\u1ea5t kh\u00ed-l\u1ecfng v\u00e0 lo\u1ea1i chuy\u1ec3n \u0111\u1ed5i \u0111\u1ed9ng l\u01b0\u1ee3ng. B\u1ea5t k\u1ec3 s\u1eed d\u1ee5ng thi\u1ebft b\u1ecb th\u1eed nghi\u1ec7m n\u00e0o \u0111\u1ec3 t\u1ea1o ra t\u00e1c \u0111\u1ed9ng, c\u00e1c y\u00eau c\u1ea7u \u0111\u1ed1i v\u1edbi ch\u00fang \u0111\u1ec1u gi\u1ed1ng nhau. C\u00e1c y\u00eau c\u1ea7u \u1edf \u0111\u00e2y gi\u1ed1ng nh\u01b0 c\u00e1c y\u00eau c\u1ea7u x\u00e1c minh (hi\u1ec7u chu\u1ea9n) tr\u00ean b\u0103ng gh\u1ebf th\u1eed nghi\u1ec7m, ngh\u0129a l\u00e0 kh\u00f4ng \u0111\u1ec1 c\u1eadp \u0111\u1ebfn c\u00e1c y\u00eau c\u1ea7u khi thi\u1ebft b\u1ecb th\u1eed nghi\u1ec7m t\u00e1c \u0111\u1ed9ng kh\u00f4ng t\u1ea3i, m\u00e0 \u0111\u1ec1 c\u1eadp \u0111\u1ebfn c\u00e1c y\u00eau c\u1ea7u m\u00e0 thi\u1ebft b\u1ecb th\u1eed nghi\u1ec7m t\u00e1c \u0111\u1ed9ng ph\u1ea3i \u0111\u00e1p \u1ee9ng t\u1ea1i \u0111i\u1ec3m th\u1eed nghi\u1ec7m sau khi c\u00e1c m\u1eabu (bao g\u1ed3m c\u1ea3 k\u1eb9p) v\u00e0 t\u1ea3i tr\u1ecdng c\u1ea7n thi\u1ebft \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t.<\/span><\/span><\/p>\n

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

1. T\u1ed5ng quan v\u1ec1 b\u00e0i th\u1eed T\u00e1c \u0111\u1ed9ng m\u00e0 s\u1ea3n ph\u1ea9m ph\u1ea3i ch\u1ecbu trong qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng v\u00e0 v\u1eadn chuy\u1ec3n ch\u1ee7 y\u1ebfu l\u00e0 do t\u00e1c \u0111\u1ed9ng g\u00e2y ra b\u1edfi phanh kh\u1ea9n c\u1ea5p v\u00e0 va ch\u1ea1m c\u1ee7a xe c\u1ed9, m\u00e1y bay th\u1ea3 d\u00f9 v\u00e0 r\u01a1i (h\u1ea1 c\u00e1nh kh\u1ea9n c\u1ea5p), ph\u00e1o binh ph\u00f3ng, n\u0103ng l\u01b0\u1ee3ng h\u00f3a<\/p>\n","protected":false},"author":1,"featured_media":19812,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[88],"tags":[],"class_list":["post-19811","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\/19811","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=19811"}],"version-history":[{"count":2,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/19811\/revisions"}],"predecessor-version":[{"id":22053,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/posts\/19811\/revisions\/22053"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/media\/19812"}],"wp:attachment":[{"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/media?parent=19811"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/categories?post=19811"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dgbellvietnam.com\/en\/wp-json\/wp\/v2\/tags?post=19811"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}