{"id":42748,"date":"2024-01-17T18:46:22","date_gmt":"2024-01-17T18:46:22","guid":{"rendered":"https:\/\/motorgenie.com\/he-so-tieu-tan-la-gi\/"},"modified":"2026-02-16T17:31:16","modified_gmt":"2026-02-16T17:31:16","slug":"he-so-tieu-tan-la-gi","status":"publish","type":"post","link":"https:\/\/motorgenie.com\/vi\/he-so-tieu-tan-la-gi\/","title":{"rendered":"H\u1ec7 s\u1ed1 ti\u00eau t\u00e1n l\u00e0 g\u00ec?"},"content":{"rendered":"

H\u1ec7 s\u1ed1 ti\u00eau t\u00e1n l\u00e0 g\u00ec?<\/p>\n

H\u1ec7 s\u1ed1 t\u1ea3n nhi\u1ec7t<\/strong> l\u00e0 m\u1ed9t th\u1eed nghi\u1ec7m v\u1ec1 \u0111i\u1ec7n gi\u00fap x\u00e1c \u0111\u1ecbnh t\u00ecnh tr\u1ea1ng chung c\u1ee7a v\u1eadt li\u1ec7u c\u00e1ch \u0111i\u1ec7n.<\/p>\n

V\u1eadt li\u1ec7u \u0111i\u1ec7n m\u00f4i l\u00e0 v\u1eadt li\u1ec7u d\u1eabn \u0111i\u1ec7n k\u00e9m nh\u01b0ng h\u1ed7 tr\u1ee3 hi\u1ec7u qu\u1ea3 cho tr\u01b0\u1eddng t\u0129nh \u0111i\u1ec7n. Khi v\u1eadt li\u1ec7u c\u00e1ch \u0111i\u1ec7n \u0111\u1eb7t v\u00e0o m\u1ed9t tr\u01b0\u1eddng t\u0129nh \u0111i\u1ec7n, c\u00e1c \u0111i\u1ec7n t\u00edch tr\u00e1i d\u1ea5u trong v\u1eadt li\u1ec7u \u0111i\u1ec7n m\u00f4i t\u1ea1o th\u00e0nh c\u00e1c l\u01b0\u1ee1ng c\u1ef1c. \"H\u00ecnh<\/p>\n

T\u1ee5 \u0111i\u1ec7n l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb \u0111i\u1ec7n l\u01b0u tr\u1eef \u0111i\u1ec7n t\u00edch b\u1eb1ng c\u00e1ch \u0111\u1eb7t m\u1ed9t v\u1eadt li\u1ec7u \u0111i\u1ec7n m\u00f4i gi\u1eefa c\u00e1c t\u1ea5m d\u1eabn \u0111i\u1ec7n. H\u1ec7 th\u1ed1ng c\u00e1ch \u0111i\u1ec7n Ground Wall (GWI) gi\u1eefa cu\u1ed9n d\u00e2y \u0111\u1ed9ng c\u01a1 v\u00e0 khung \u0111\u1ed9ng c\u01a1 t\u1ea1o ra t\u1ee5 \u0111i\u1ec7n t\u1ef1 nhi\u00ean. Ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m tra GWI truy\u1ec1n th\u1ed1ng l\u00e0 \u0111o gi\u00e1 tr\u1ecb \u0111i\u1ec7n tr\u1edf n\u1ed1i \u0111\u1ea5t. <\/p>\n

\u0110\u00e2y l\u00e0 ph\u00e9p \u0111o r\u1ea5t c\u00f3 gi\u00e1 tr\u1ecb \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1c \u0111i\u1ec3m y\u1ebfu trong l\u1edbp c\u00e1ch nhi\u1ec7t nh\u01b0ng kh\u00f4ng x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c t\u00ecnh tr\u1ea1ng chung c\u1ee7a to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng GWI.<\/p>\n

H\u1ec7 s\u1ed1 t\u1ea3n nhi\u1ec7t cung c\u1ea5p th\u00f4ng tin b\u1ed5 sung v\u1ec1 t\u00ecnh tr\u1ea1ng chung c\u1ee7a GWI.<\/p>\n

\u1ede d\u1ea1ng \u0111\u01a1n gi\u1ea3n nh\u1ea5t khi v\u1eadt li\u1ec7u \u0111i\u1ec7n m\u00f4i ch\u1ecbu t\u00e1c d\u1ee5ng c\u1ee7a \u0111i\u1ec7n tr\u01b0\u1eddng m\u1ed9t chi\u1ec1u, c\u00e1c l\u01b0\u1ee1ng c\u1ef1c trong ch\u1ea5t \u0111i\u1ec7n m\u00f4i b\u1ecb d\u1ecbch chuy\u1ec3n v\u00e0 c\u0103n ch\u1ec9nh sao cho \u0111\u1ea7u \u00e2m c\u1ee7a l\u01b0\u1ee1ng c\u1ef1c b\u1ecb h\u00fat v\u1ec1 ph\u00eda b\u1ea3n d\u01b0\u01a1ng v\u00e0 \u0111\u1ea7u d\u01b0\u01a1ng c\u1ee7a l\u01b0\u1ee1ng c\u1ef1c b\u1ecb h\u00fat v\u1ec1 ph\u00eda b\u1ea3n \u00e2m. .<\/p>\n

M\u1ed9t ph\u1ea7n d\u00f2ng \u0111i\u1ec7n ch\u1ea1y t\u1eeb ngu\u1ed3n \u0111\u1ebfn c\u00e1c t\u1ea5m d\u1eabn \u0111i\u1ec7n s\u1ebd l\u00e0m c\u00e1c l\u01b0\u1ee1ng c\u1ef1c th\u1eb3ng h\u00e0ng v\u00e0 t\u1ea1o ra t\u1ed5n th\u1ea5t d\u01b0\u1edbi d\u1ea1ng nhi\u1ec7t v\u00e0 m\u1ed9t ph\u1ea7n d\u00f2ng \u0111i\u1ec7n s\u1ebd r\u00f2 r\u1ec9 qua ch\u1ea5t \u0111i\u1ec7n m\u00f4i. Nh\u1eefng d\u00f2ng \u0111i\u1ec7n n\u00e0y c\u00f3 \u0111i\u1ec7n tr\u1edf v\u00e0 ti\u00eau t\u1ed1n n\u0103ng l\u01b0\u1ee3ng, \u0111\u00e2y l\u00e0 d\u00f2ng \u0111i\u1ec7n tr\u1edf IR. Ph\u1ea7n c\u00f2n l\u1ea1i c\u1ee7a
\n D\u00f2ng \u0111i\u1ec7n \u0111\u01b0\u1ee3c t\u00edch tr\u1eef tr\u00ean c\u00e1c t\u1ea5m v\u00e0 s\u1ebd \u0111\u01b0\u1ee3c x\u1ea3 tr\u1edf l\u1ea1i h\u1ec7 th\u1ed1ng, d\u00f2ng \u0111i\u1ec7n n\u00e0y l\u00e0 d\u00f2ng \u0111i\u1ec7n dung c\u1ee7a IC.<\/p>\n

Khi \u0111\u1eb7t trong tr\u01b0\u1eddng \u0111i\u1ec7n xoay chi\u1ec1u, c\u00e1c l\u01b0\u1ee1ng c\u1ef1c n\u00e0y s\u1ebd d\u1ecbch chuy\u1ec3n theo chu k\u1ef3 khi c\u1ef1c t\u00ednh c\u1ee7a tr\u01b0\u1eddng t\u0129nh \u0111i\u1ec7n thay \u0111\u1ed5i t\u1eeb d\u01b0\u01a1ng sang \u00e2m. S\u1ef1 d\u1ecbch chuy\u1ec3n l\u01b0\u1ee1ng c\u1ef1c n\u00e0y t\u1ea1o ra nhi\u1ec7t v\u00e0 ti\u00eau t\u1ed1n n\u0103ng l\u01b0\u1ee3ng. <\/p>\n

N\u00f3i m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n, d\u00f2ng \u0111i\u1ec7n d\u1ecbch chuy\u1ec3n c\u00e1c l\u01b0\u1ee1ng c\u1ef1c v\u00e0 r\u00f2 r\u1ec9 qua ch\u1ea5t \u0111i\u1ec7n m\u00f4i l\u00e0 \u0111i\u1ec7n tr\u1edf IR, d\u00f2ng \u0111i\u1ec7n \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef \u0111\u1ec3 gi\u1eef c\u00e1c l\u01b0\u1ee1ng c\u1ef1c th\u1eb3ng h\u00e0ng l\u00e0 IC \u0111i\u1ec7n dung.
\n\"C\u00e1c<\/p>\n

H\u1ec7 s\u1ed1 t\u1ea3n nhi\u1ec7t l\u00e0 t\u1ef7 l\u1ec7 gi\u1eefa d\u00f2ng \u0111i\u1ec7n tr\u1edf IR v\u00e0 d\u00f2ng \u0111i\u1ec7n \u0111i\u1ec7n dung IC, th\u1eed nghi\u1ec7m n\u00e0y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i tr\u00ean c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n nh\u01b0 \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n, m\u00e1y bi\u1ebfn \u00e1p, c\u1ea7u dao, m\u00e1y ph\u00e1t \u0111i\u1ec7n v\u00e0 h\u1ec7 th\u1ed1ng c\u00e1p \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh \u0111\u1eb7c t\u00ednh \u0111i\u1ec7n dung c\u1ee7a v\u1eadt li\u1ec7u c\u00e1ch \u0111i\u1ec7n c\u1ee7a cu\u1ed9n d\u00e2y v\u00e0 d\u00e2y d\u1eabn. Khi GWI suy gi\u1ea3m theo th\u1eddi gian, n\u00f3 tr\u1edf n\u00ean c\u00f3 \u0111i\u1ec7n tr\u1edf cao h\u01a1n khi\u1ebfn l\u01b0\u1ee3ng IR t\u0103ng l\u00ean. Ch\u1ea5t c\u00e1ch \u0111i\u1ec7n b\u1ecb nhi\u1ec5m b\u1ea9n l\u1ea1i l\u00e0m thay \u0111\u1ed5i h\u1eb1ng s\u1ed1 \u0111i\u1ec7n m\u00f4i c\u1ee7a GWI khi\u1ebfn d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u tr\u1edf n\u00ean c\u00f3 \u0111i\u1ec7n tr\u1edf cao h\u01a1n v\u00e0 \u00edt \u0111i\u1ec7n dung h\u01a1n, \u0111i\u1ec1u n\u00e0y c\u0169ng khi\u1ebfn h\u1ec7 s\u1ed1 ti\u00eau t\u00e1n t\u0103ng l\u00ean. H\u1ec7 s\u1ed1 t\u1ea3n nhi\u1ec7t c\u1ee7a l\u1edbp c\u00e1ch nhi\u1ec7t m\u1edbi, s\u1ea1ch th\u01b0\u1eddng l\u00e0 3 \u0111\u1ebfn 5%, DF l\u1edbn h\u01a1n 6% cho th\u1ea5y c\u00f3 s\u1ef1 thay \u0111\u1ed5i v\u1ec1 t\u00ecnh tr\u1ea1ng c\u00e1ch \u0111i\u1ec7n c\u1ee7a thi\u1ebft b\u1ecb. <\/p>\n

Khi c\u00f3 h\u01a1i \u1ea9m ho\u1eb7c ch\u1ea5t g\u00e2y \u00f4 nhi\u1ec5m trong GWI ho\u1eb7c th\u1eadm ch\u00ed c\u1ea3 l\u1edbp c\u00e1ch \u0111i\u1ec7n xung quanh cu\u1ed9n d\u00e2y, \u0111i\u1ec1u n\u00e0y s\u1ebd g\u00e2y ra s\u1ef1 thay \u0111\u1ed5i th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc c\u1ee7a v\u1eadt li\u1ec7u \u0111i\u1ec7n m\u00f4i \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m v\u1eadt li\u1ec7u c\u00e1ch \u0111i\u1ec7n c\u1ee7a thi\u1ebft b\u1ecb. Nh\u1eefng thay \u0111\u1ed5i n\u00e0y d\u1eabn \u0111\u1ebfn s\u1ef1 thay \u0111\u1ed5i trong DF v\u00e0 \u0111i\u1ec7n dung n\u1ed1i \u0111\u1ea5t. <\/p>\n

S\u1ef1 gia t\u0103ng H\u1ec7 s\u1ed1 t\u1ea3n nhi\u1ec7t cho th\u1ea5y s\u1ef1 thay \u0111\u1ed5i trong t\u00ecnh tr\u1ea1ng chung c\u1ee7a v\u1eadt li\u1ec7u c\u00e1ch nhi\u1ec7t, vi\u1ec7c so s\u00e1nh DF v\u00e0 \u0111i\u1ec7n dung v\u1edbi m\u1eb7t \u0111\u1ea5t gi\u00fap x\u00e1c \u0111\u1ecbnh t\u00ecnh tr\u1ea1ng c\u1ee7a h\u1ec7 th\u1ed1ng c\u00e1ch nhi\u1ec7t theo th\u1eddi gian. \u0110o h\u1ec7 s\u1ed1 t\u1ea3n nhi\u1ec7t \u1edf nhi\u1ec7t \u0111\u1ed9 qu\u00e1 cao ho\u1eb7c qu\u00e1 th\u1ea5p c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn k\u1ebft qu\u1ea3 kh\u00f4ng c\u00e2n b\u1eb1ng v\u00e0 g\u00e2y ra sai s\u1ed1 khi t\u00ednh to\u00e1n. <\/p>\n

Ti\u00eau chu\u1ea9n IEEE 286-2000 khuy\u1ebfn ngh\u1ecb th\u1eed nghi\u1ec7m \u1edf nhi\u1ec7t \u0111\u1ed9 xung quanh ho\u1eb7c kho\u1ea3ng 77 \u0111\u1ed9 F ho\u1eb7c 25 \u0111\u1ed9 C.<\/p>\n","protected":false},"excerpt":{"rendered":"

H\u1ec7 s\u1ed1 ti\u00eau t\u00e1n l\u00e0 g\u00ec? H\u1ec7 s\u1ed1 t\u1ea3n nhi\u1ec7t l\u00e0 m\u1ed9t th\u1eed nghi\u1ec7m v\u1ec1 \u0111i\u1ec7n gi\u00fap x\u00e1c \u0111\u1ecbnh t\u00ecnh tr\u1ea1ng chung c\u1ee7a v\u1eadt li\u1ec7u c\u00e1ch \u0111i\u1ec7n. V\u1eadt li\u1ec7u \u0111i\u1ec7n m\u00f4i l\u00e0 v\u1eadt li\u1ec7u d\u1eabn \u0111i\u1ec7n k\u00e9m nh\u01b0ng h\u1ed7 tr\u1ee3 hi\u1ec7u qu\u1ea3 cho tr\u01b0\u1eddng t\u0129nh \u0111i\u1ec7n. Khi v\u1eadt li\u1ec7u c\u00e1ch \u0111i\u1ec7n \u0111\u1eb7t v\u00e0o m\u1ed9t tr\u01b0\u1eddng […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[32],"tags":[],"table_tags":[],"class_list":["post-42748","post","type-post","status-publish","format-standard","hentry","category-uncategorized-vi"],"yoast_head":"\nH\u1ec7 s\u1ed1 ti\u00eau t\u00e1n l\u00e0 g\u00ec? - Motor Genie<\/title>\n<meta name=\"description\" content=\"H\u1ec7 s\u1ed1 t\u1ed5n hao \u0111o l\u01b0\u1eddng t\u00ecnh tr\u1ea1ng c\u00e1ch \u0111i\u1ec7n trong \u0111\u1ed9ng c\u01a1, m\u00e1y bi\u1ebfn \u00e1p v\u00e0 thi\u1ebft b\u1ecb \u0111i\u1ec7n \u0111\u1ec3 ph\u00e1t hi\u1ec7n s\u1ef1 l\u00e3o h\u00f3a, \u0111\u1ed9 \u1ea9m ho\u1eb7c \u00f4 nhi\u1ec5m.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/motorgenie.com\/vi\/he-so-tieu-tan-la-gi\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"H\u1ec7 s\u1ed1 ti\u00eau t\u00e1n l\u00e0 g\u00ec? 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