{"id":231,"date":"2026-10-17T17:06:14","date_gmt":"2026-10-17T17:06:14","guid":{"rendered":"https:\/\/galosom.com\/vn\/?p=231"},"modified":"2026-10-18T11:42:57","modified_gmt":"2026-10-18T11:42:57","slug":"automatic-watch-stops-same-time-every-day-2","status":"publish","type":"post","link":"https:\/\/galosom.com\/vn\/2026\/10\/17\/automatic-watch-stops-same-time-every-day-2\/","title":{"rendered":"\u0110\u1ed3ng h\u1ed3 t\u1ef1 \u0111\u1ed9ng d\u1eebng v\u00e0o c\u00f9ng m\u1ed9t th\u1eddi \u0111i\u1ec3m m\u1ed7i ng\u00e0y: \u00dd ngh\u0129a th\u1ef1c s\u1ef1"},"content":{"rendered":"
\"Automatic
\u0110\u1ed3ng h\u1ed3 d\u1eebng l\u1eb7p l\u1ea1i c\u00f3 th\u1ec3 do th\u00f3i quen n\u1ea1p n\u0103ng l\u01b0\u1ee3ng \u0111\u1ec1u \u0111\u1eb7n ho\u1eb7c do l\u1ed7i li\u00ean quan \u0111\u1ebfn m\u1ed9t v\u1ecb tr\u00ed kim c\u1ee5 th\u1ec3.<\/figcaption><\/figure>\n

Khi m\u1ed9t chi\u1ebfc \u0111\u1ed3ng h\u1ed3 t\u1ef1 \u0111\u1ed9ng d\u1eebng v\u00e0o c\u00f9ng m\u1ed9t th\u1eddi \u0111i\u1ec3m m\u1ed7i ng\u00e0y<\/strong>, s\u1ef1 l\u1eb7p l\u1ea1i \u1ea5y c\u00f3 v\u1ebb nh\u01b0 m\u1ed9t manh m\u1ed1i \u2014 v\u00e0 \u0111\u00fang l\u00e0 v\u1eady. \u0110i\u1ec1u kh\u00f3 l\u00e0 x\u00e1c \u0111\u1ecbnh m\u1eabu l\u1eb7p \u0111\u00f3 th\u1ef1c s\u1ef1 ph\u1ea3n \u00e1nh \u0111i\u1ec1u g\u00ec. \u0110\u1ed3ng h\u1ed3 c\u00f3 th\u1ec3 ch\u1ec9 c\u1ea1n n\u0103ng l\u01b0\u1ee3ng d\u1ef1 tr\u1eef v\u00e0o kho\u1ea3ng c\u00f9ng m\u1ed9t gi\u1edd v\u00ec m\u1ed7i ng\u00e0y n\u00f3 nh\u1eadn \u0111\u01b0\u1ee3c l\u01b0\u1ee3ng chuy\u1ec3n \u0111\u1ed9ng t\u1eeb c\u1ed5 tay t\u01b0\u01a1ng \u0111\u01b0\u01a1ng nhau. Ho\u1eb7c \u0111\u1ed3ng h\u1ed3 c\u00f3 th\u1ec3 d\u1eebng khi kim, b\u00e1nh xe hay b\u1ed9 ph\u1eadn l\u1ecbch ch\u1ea1m \u0111\u1ebfn m\u1ed9t v\u1ecb tr\u00ed nh\u1ea5t \u0111\u1ecbnh.<\/p>\n

Hai c\u00e1ch gi\u1ea3i th\u00edch n\u00e0y c\u1ea7n nh\u1eefng ph\u00e9p th\u1eed kh\u00e1c nhau. \u0110\u1ed3ng h\u1ed3 thi\u1ebfu n\u0103ng l\u01b0\u1ee3ng s\u1ebd d\u1eebng theo th\u1eddi gian \u0111\u00e3 tr\u00f4i qua: h\u00e3y l\u00ean d\u00e2y \u0111\u1ea7y \u0111\u1ee7, v\u00e0 th\u1eddi \u0111i\u1ec3m d\u1eebng s\u1ebd mu\u1ed9n h\u01a1n \u0111\u00e1ng k\u1ec3. \u0110\u1ed3ng h\u1ed3 b\u1ecb c\u1ea3n tr\u1edf c\u01a1 h\u1ecdc th\u01b0\u1eddng d\u1eebng theo v\u1ecb tr\u00ed tr\u00ean m\u1eb7t s\u1ed1: h\u00e3y ch\u1ec9nh l\u1ea1i kim, \u0111\u1ed3ng h\u1ed3 c\u00f3 th\u1ec3 l\u1ea1i d\u1eebng g\u1ea7n c\u00f9ng th\u1eddi gian hi\u1ec3n th\u1ecb, d\u00f9 ph\u00e9p th\u1eed b\u1eaft \u0111\u1ea7u v\u00e0o m\u1ed9t gi\u1edd kh\u00e1c.<\/p>\n

H\u01b0\u1edbng d\u1eabn n\u00e0y ch\u1ec9 c\u00e1ch ph\u00e2n bi\u1ec7t hai tr\u01b0\u1eddng h\u1ee3p m\u00e0 kh\u00f4ng c\u1ea7n m\u1edf v\u1ecf, l\u1eafc m\u1ea1nh \u0111\u1ed3ng h\u1ed3 hay \u0111o\u00e1n b\u1ed9 ph\u1eadn b\u00ean trong n\u00e0o b\u1ecb h\u1ecfng. H\u01b0\u1edbng d\u1eabn c\u0169ng gi\u1ea3i th\u00edch khi n\u00e0o \u0111\u00e2y l\u00e0 hi\u1ec7n t\u01b0\u1ee3ng b\u00ecnh th\u01b0\u1eddng, khi n\u00e0o h\u1ed9p xoay \u0111\u1ed3ng h\u1ed3 c\u00f3 th\u1ec3 h\u1eefu \u00edch v\u00e0 khi n\u00e0o ki\u1ec3m tra chuy\u00ean nghi\u1ec7p l\u00e0 b\u01b0\u1edbc ti\u1ebfp theo h\u1ee3p l\u00fd duy nh\u1ea5t.<\/p>\n

Tr\u01b0\u1edbc ti\u00ean, h\u00e3y x\u00e1c nh\u1eadn \u0111\u1ed3ng h\u1ed3 th\u1ef1c s\u1ef1 \u0111\u00e3 d\u1eebng<\/h2>\n

Tr\u01b0\u1edbc khi ch\u1ea9n \u0111o\u00e1n b\u1ed9 m\u00e1y, h\u00e3y x\u00e1c \u0111\u1ecbnh kim gi\u00e2y \u0111ang ch\u1ea1y. \u1ede nhi\u1ec1u m\u1eabu \u0111\u1ed3ng h\u1ed3 b\u1ea5m gi\u1edd, kim gi\u00e2y l\u1edbn \u1edf gi\u1eefa l\u00e0 kim b\u1ea5m gi\u1edd v\u00e0 s\u1ebd \u0111\u1ee9ng y\u00ean t\u1ea1i 12 cho \u0111\u1ebfn khi ch\u1ee9c n\u0103ng b\u1ea5m gi\u1edd \u0111\u01b0\u1ee3c kh\u1edfi \u0111\u1ed9ng. Vi\u1ec7c xem gi\u1edd b\u00ecnh th\u01b0\u1eddng v\u1eabn ti\u1ebfp t\u1ee5c tr\u00ean m\u1eb7t s\u1ed1 ph\u1ee5 nh\u1ecf h\u01a1n. Ch\u1ec9 b\u00e1o n\u0103ng l\u01b0\u1ee3ng d\u1ef1 tr\u1eef, ki\u1ec3u hi\u1ec3n th\u1ecb gi\u00e2y nh\u1ea3y ho\u1eb7c b\u1ed1 c\u1ee5c m\u1eb7t s\u1ed1 kh\u00e1c th\u01b0\u1eddng c\u0169ng c\u00f3 th\u1ec3 g\u00e2y nh\u1ea7m l\u1eabn t\u01b0\u01a1ng t\u1ef1, v\u00ec v\u1eady h\u00e3y xem h\u01b0\u1edbng d\u1eabn s\u1eed d\u1ee5ng \u0111\u00fang v\u1edbi m\u00e3 s\u1ea3n ph\u1ea9m.<\/p>\n

N\u1ebfu kim gi\u00e2y th\u1ef1c s\u1ef1 \u0111\u00e3 d\u1eebng, h\u00e3y ghi l\u1ea1i gi\u1edd v\u00e0 ph\u00fat hi\u1ec3n th\u1ecb tr\u01b0\u1edbc khi kh\u1edfi \u0111\u1ed9ng l\u1ea1i \u0111\u1ed3ng h\u1ed3. \u0110\u1ed3ng th\u1eddi ghi l\u1ea1i l\u1ea7n cu\u1ed1i qu\u00fd kh\u00e1ch l\u00ean d\u00e2y khi n\u00e0o, \u0111\u00e3 \u0111eo \u0111\u1ed3ng h\u1ed3 trong bao l\u00e2u v\u00e0 \u0111\u1ed3ng h\u1ed3 c\u00f3 c\u00f2n ch\u1ea1y l\u00fac qu\u00fd kh\u00e1ch th\u00e1o ra hay kh\u00f4ng. M\u1ed9t l\u1ea7n d\u1eebng ri\u00eang l\u1ebb ch\u01b0a t\u1ea1o th\u00e0nh quy lu\u1eadt h\u1eb1ng ng\u00e0y. Ba chu k\u1ef3 \u0111\u01b0\u1ee3c ghi ch\u00e9p c\u1ea9n th\u1eadn s\u1ebd h\u1eefu \u00edch h\u01a1n nhi\u1ec1u so v\u1edbi k\u00fd \u1ee9c m\u01a1 h\u1ed3 r\u1eb1ng \u0111\u1ed3ng h\u1ed3 \u201cl\u00fac n\u00e0o c\u0169ng d\u1eebng qua \u0111\u00eam\u201d.<\/p>\n

C\u0169ng h\u00e3y ki\u1ec3m tra n\u00fam ch\u1ec9nh gi\u1edd. Sau khi ch\u1ec9nh, n\u00fam ph\u1ea3i \u0111\u01b0\u1ee3c \u1ea5n v\u00e0o h\u1ebft c\u1ee1 ho\u1eb7c v\u1eb7n ch\u1eb7t \u0111\u00fang c\u00e1ch. N\u1ebfu \u0111\u1ec3 n\u00fam \u1edf v\u1ecb tr\u00ed ch\u1ec9nh gi\u1edd, kim gi\u00e2y s\u1ebd ch\u1ee7 \u00fd d\u1eebng tr\u00ean c\u00e1c b\u1ed9 m\u00e1y c\u00f3 ch\u1ee9c n\u0103ng d\u1eebng kim gi\u00e2y khi ch\u1ec9nh gi\u1edd. \u0110\u1eebng c\u1ed1 v\u1eb7n m\u1ea1nh n\u00fam n\u1ebfu n\u00fam kh\u00f4ng v\u00e0o v\u1ecb tr\u00ed b\u00ecnh th\u01b0\u1eddng.<\/p>\n

V\u00ec sao th\u00f3i quen h\u1eb1ng ng\u00e0y c\u00f3 th\u1ec3 khi\u1ebfn \u0111\u1ed3ng h\u1ed3 d\u1eebng c\u00f9ng m\u1ed9t th\u1eddi \u0111i\u1ec3m<\/h2>\n

\u0110\u1ed3ng h\u1ed3 t\u1ef1 \u0111\u1ed9ng t\u00edch tr\u1eef n\u0103ng l\u01b0\u1ee3ng trong d\u00e2y c\u00f3t ch\u00ednh<\/a>. R\u00f4to quay khi c\u1ed5 tay chuy\u1ec3n \u0111\u1ed9ng v\u00e0 truy\u1ec1n n\u0103ng l\u01b0\u1ee3ng qua b\u1ed9 truy\u1ec1n l\u00ean d\u00e2y t\u1ef1 \u0111\u1ed9ng. Sau \u0111\u00f3, b\u1ed9 m\u00e1y li\u00ean t\u1ee5c ti\u00eau th\u1ee5 n\u0103ng l\u01b0\u1ee3ng \u1ea5y, d\u00f9 \u0111\u1ed3ng h\u1ed3 \u0111ang \u0111\u01b0\u1ee3c \u0111eo hay \u0111\u1eb7t tr\u00ean b\u00e0n c\u1ea1nh gi\u01b0\u1eddng.<\/p>\n

H\u01b0\u1edbng d\u1eabn ch\u00ednh th\u1ee9c c\u1ee7a Citizen l\u01b0u \u00fd r\u1eb1ng c\u1eed \u0111\u1ed9ng c\u00e1nh tay h\u1ea1n ch\u1ebf c\u00f3 th\u1ec3 khi\u1ebfn d\u00e2y c\u00f3t ch\u00ednh c\u1ee7a \u0111\u1ed3ng h\u1ed3 t\u1ef1 \u0111\u1ed9ng kh\u00f4ng \u0111\u01b0\u1ee3c l\u00ean d\u00e2y \u0111\u1ee7, ngay c\u1ea3 khi \u0111eo h\u1eb1ng ng\u00e0y. Seiko c\u0169ng gi\u1ea3i th\u00edch r\u1eb1ng hi\u1ec7u su\u1ea5t c\u1ee7a \u0111\u1ed3ng h\u1ed3 c\u01a1 ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1c y\u1ebfu t\u1ed1 nh\u01b0 th\u1eddi gian \u0111eo, chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a c\u00e1nh tay v\u00e0 m\u1ee9c \u0111\u1ed9 l\u00ean d\u00e2y. Rolex khuy\u00ean n\u00ean l\u00ean d\u00e2y c\u00f3t th\u1ee7 c\u00f4ng cho \u0111\u1ed3ng h\u1ed3 t\u1ef1 \u0111\u1ed9ng \u0111\u00e3 d\u1eebng tr\u01b0\u1edbc khi ch\u1ec9nh gi\u1edd v\u00e0 \u0111eo, thay v\u00ec cho r\u1eb1ng ch\u1ec9 \u0111eo v\u00e0i ph\u00fat \u0111\u00e3 n\u1ea1p \u0111\u1ee7 n\u0103ng l\u01b0\u1ee3ng d\u1ef1 tr\u1eef c\u1ea7n thi\u1ebft.<\/p>\n

\u0110i\u1ec1u n\u00e0y t\u1ea1o n\u00ean m\u1ed9t quy lu\u1eadt l\u1eb7p l\u1ea1i r\u1ea5t b\u00ecnh th\u01b0\u1eddng. H\u00e3y h\u00ecnh dung m\u1ed9t ng\u01b0\u1eddi \u0111eo chi\u1ebfc \u0111\u1ed3ng h\u1ed3 g\u1ea7n c\u1ea1n n\u0103ng l\u01b0\u1ee3ng l\u00fac 8 gi\u1edd s\u00e1ng, d\u00e0nh ph\u1ea7n l\u1edbn ng\u00e0y l\u00e0m vi\u1ec7c b\u00ean b\u00e0n ph\u00edm, th\u00e1o \u0111\u1ed3ng h\u1ed3 l\u00fac 7 p.m. v\u00e0 h\u00f4m sau l\u1ea1i theo l\u1ecbch tr\u00ecnh t\u01b0\u01a1ng t\u1ef1. R\u00f4to c\u00f3 th\u1ec3 ch\u1ec9 n\u1ea1p th\u00eam v\u1eeba \u0111\u1ee7 n\u0103ng l\u01b0\u1ee3ng \u0111\u1ec3 b\u1ed9 m\u00e1y ti\u1ebfp t\u1ee5c ch\u1ea1y \u0111\u1ebfn 3 ho\u1eb7c 4 gi\u1edd s\u00e1ng \u0110\u1ed3ng h\u1ed3 c\u00f3 v\u1ebb d\u1eebng v\u00e0o c\u00f9ng m\u1ed9t gi\u1edd, nh\u01b0ng kh\u00f4ng c\u00f3 b\u1ed9 ph\u1eadn n\u00e0o b\u1ecb k\u1eb9t t\u1ea1i v\u1ecb tr\u00ed kim \u0111\u00f3. Ng\u01b0\u1eddi \u0111eo ch\u1ec9 \u0111ang n\u1ea1p v\u00e0 ti\u00eau th\u1ee5 m\u1ed9t l\u01b0\u1ee3ng n\u0103ng l\u01b0\u1ee3ng t\u01b0\u01a1ng t\u1ef1 m\u1ed7i ng\u00e0y.<\/p>\n

D\u00e2y \u0111eo l\u1ecfng c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m hi\u1ec7u qu\u1ea3 l\u00ean d\u00e2y v\u00ec \u0111\u1ed3ng h\u1ed3 chuy\u1ec3n \u0111\u1ed9ng kh\u00e1c \u0111i tr\u00ean c\u1ed5 tay. M\u1ed9t ng\u00e0y ch\u1ee7 y\u1ebfu l\u00e0m vi\u1ec7c b\u00e0n gi\u1ea5y, b\u1ec7nh t\u1eadt, gi\u1ea3m ho\u1ea1t \u0111\u1ed9ng ho\u1eb7c ch\u1ec9 \u0111eo \u0111\u1ed3ng h\u1ed3 v\u00e0i gi\u1edd c\u0169ng c\u00f3 th\u1ec3 g\u00e2y ra \u0111i\u1ec1u t\u01b0\u01a1ng t\u1ef1. Kh\u00f4ng y\u1ebfu t\u1ed1 n\u00e0o trong s\u1ed1 n\u00e0y ch\u1ee9ng minh \u0111\u1ed3ng h\u1ed3 b\u1ecb l\u1ed7i. Ph\u00e9p th\u1eed c\u00f3 ki\u1ec3m so\u00e1t l\u00e0 b\u1eaft \u0111\u1ea7u v\u1edbi tr\u1ea1ng th\u00e1i l\u00ean d\u00e2y \u0111\u00e3 bi\u1ebft v\u00e0 \u0111\u1ee7 n\u0103ng l\u01b0\u1ee3ng.<\/p>\n

Th\u1ef1c hi\u1ec7n ph\u00e9p th\u1eed n\u0103ng l\u01b0\u1ee3ng d\u1ef1 tr\u1eef c\u00f3 ki\u1ec3m so\u00e1t<\/h2>\n
    \n
  1. T\u00ecm \u0111\u00fang h\u01b0\u1edbng d\u1eabn s\u1eed d\u1ee5ng.<\/strong> X\u00e1c nh\u1eadn b\u1ed9 m\u00e1y cho ph\u00e9p l\u00ean d\u00e2y th\u1ee7 c\u00f4ng v\u00e0 l\u00e0m theo chi\u1ec1u xoay c\u00f9ng quy tr\u00ecnh \u0111\u01b0\u1ee3c n\u00eau trong h\u01b0\u1edbng d\u1eabn.<\/li>\n
  2. L\u00ean d\u00e2y t\u1eeb t\u1eeb v\u00e0 nh\u1eb9 nh\u00e0ng.<\/strong> S\u1eed d\u1ee5ng s\u1ed1 v\u00f2ng xoay do nh\u00e0 s\u1ea3n xu\u1ea5t khuy\u1ebfn ngh\u1ecb. \u0110\u1eebng c\u1ed1 l\u00ean d\u00e2y cho b\u1ed9 m\u00e1y l\u00ean d\u00e2y th\u1ee7 c\u00f4ng qu\u00e1 \u0111i\u1ec3m d\u1eebng ch\u1eafc ch\u1eafn.<\/li>\n
  3. \u0110\u1eb7t th\u1eddi \u0111i\u1ec3m tham chi\u1ebfu.<\/strong> So s\u00e1nh \u0111\u1ed3ng h\u1ed3 v\u1edbi m\u1ed9t chi\u1ebfc \u0111\u1ed3ng h\u1ed3 \u0111\u00e1ng tin c\u1eady v\u00e0 ghi l\u1ea1i th\u1eddi \u0111i\u1ec3m b\u1eaft \u0111\u1ea7u ph\u00e9p th\u1eed.<\/li>\n
  4. T\u1eaft c\u00e1c ch\u1ee9c n\u0103ng b\u1ed5 sung.<\/strong> \u0110\u1eebng b\u1eadt ch\u1ee9c n\u0103ng b\u1ea5m gi\u1edd ho\u1eb7c b\u00e1o th\u1ee9c, tr\u1eeb khi h\u01b0\u1edbng d\u1eabn cho bi\u1ebft th\u1eddi l\u01b0\u1ee3ng n\u0103ng l\u01b0\u1ee3ng d\u1ef1 tr\u1eef \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1 \u0111\u00e3 t\u00ednh \u0111\u1ebfn vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1c ch\u1ee9c n\u0103ng \u0111\u00f3.<\/li>\n
  5. \u0110\u1eb7t \u0111\u1ed3ng h\u1ed3 \u1edf n\u01a1i an to\u00e0n.<\/strong> \u0110\u1ec3 \u0111\u1ed3ng h\u1ed3 tr\u00ean b\u1ec1 m\u1eb7t v\u1eefng ch\u1eafc, kh\u00f4 r\u00e1o, tr\u00e1nh xa loa, kh\u00f3a nam ch\u00e2m, rung \u0111\u1ed9ng v\u00e0 nhi\u1ec7t \u0111\u1ed9 kh\u1eafc nghi\u1ec7t.<\/li>\n
  6. Ghi l\u1ea1i l\u00fac \u0111\u1ed3ng h\u1ed3 d\u1eebng.<\/strong> Ghi c\u1ea3 s\u1ed1 gi\u1edd th\u1ef1c t\u1ebf \u0111\u00e3 tr\u00f4i qua l\u1eabn th\u1eddi gian hi\u1ec3n th\u1ecb tr\u00ean m\u1eb7t s\u1ed1.<\/li>\n<\/ol>\n

    M\u1ee9c d\u1ef1 tr\u1eef n\u0103ng l\u01b0\u1ee3ng do nh\u00e0 s\u1ea3n xu\u1ea5t c\u00f4ng b\u1ed1 th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u0111o khi \u0111\u1ed3ng h\u1ed3 \u0111\u01b0\u1ee3c l\u00ean c\u00f3t \u0111\u1ea7y \u0111\u1ee7 trong \u0111i\u1ec1u ki\u1ec7n \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t. K\u1ebft qu\u1ea3 c\u1ee7a qu\u00fd kh\u00e1ch kh\u00f4ng c\u1ea7n kh\u1edbp ch\u00ednh x\u00e1c \u0111\u1ebfn t\u1eebng ph\u00fat v\u1edbi m\u1ee9c c\u00f4ng b\u1ed1. N\u1ebfu th\u1eddi gian ch\u1ea1y ng\u1eafn h\u01a1n \u0111\u00e1ng k\u1ec3, h\u00e3y l\u1eb7p l\u1ea1i ph\u00e9p th\u1eed m\u1ed9t l\u1ea7n \u0111\u1ec3 lo\u1ea1i tr\u1eeb kh\u1ea3 n\u0103ng \u0111\u1ed3ng h\u1ed3 ch\u01b0a \u0111\u01b0\u1ee3c l\u00ean c\u00f3t \u0111\u1ea7y \u0111\u1ee7. N\u1ebfu l\u1ea7n th\u1eed th\u1ee9 hai c\u0169ng cho k\u1ebft qu\u1ea3 r\u00f5 r\u00e0ng l\u00e0 ng\u1eafn, \u0111i\u1ec1u \u0111\u00f3 c\u1ee7ng c\u1ed1 l\u00fd do n\u00ean \u0111\u01b0a \u0111\u1ed3ng h\u1ed3 \u0111i ki\u1ec3m tra chuy\u00ean nghi\u1ec7p.<\/p>\n

    \u0110i\u1ec1u quan tr\u1ecdng l\u00e0 so s\u00e1nh th\u1eddi gian \u0111\u00e3 tr\u00f4i qua v\u1edbi v\u1ecb tr\u00ed tr\u00ean m\u1eb7t s\u1ed1. N\u1ebfu \u0111\u1ed3ng h\u1ed3 b\u1eaft \u0111\u1ea7u ch\u1ea1y l\u00fac 8 gi\u1edd s\u00e1ng v\u00e0 d\u1eebng l\u1ea1i sau 38 gi\u1edd, v\u00e0o l\u00fac 10 gi\u1edd t\u1ed1i, r\u1ed3i trong l\u1ea7n th\u1eed th\u1ee9 hai b\u1eaft \u0111\u1ea7u l\u00fac 2 gi\u1edd chi\u1ec1u, \u0111\u1ed3ng h\u1ed3 c\u0169ng ch\u1ea1y \u0111\u01b0\u1ee3c kho\u1ea3ng 38 gi\u1edd nh\u01b0ng d\u1eebng l\u00fac 4 gi\u1edd s\u00e1ng, th\u00ec ki\u1ec3u d\u1eebng n\u00e0y ph\u1ee5 thu\u1ed9c v\u00e0o n\u0103ng l\u01b0\u1ee3ng. N\u1ebfu c\u1ea3 hai l\u1ea7n th\u1eed \u0111\u1ec1u d\u1eebng khi kim g\u1ea7n 10 chi\u1ec1u, ki\u1ec3u d\u1eebng n\u00e0y ph\u1ee5 thu\u1ed9c v\u00e0o v\u1ecb tr\u00ed hi\u1ec3n th\u1ecb v\u00e0 c\u1ea7n \u0111\u01b0\u1ee3c ch\u00fa \u00fd k\u1ef9 h\u01a1n.<\/p>\n

    Khi kim d\u1eebng \u1edf c\u00f9ng v\u1ecb tr\u00ed tr\u00ean m\u1eb7t s\u1ed1 g\u1ee3i \u00fd c\u00f3 s\u1ef1 k\u1eb9t c\u01a1 kh\u00ed<\/h2>\n
    \"Close-up
    D\u1eebng \u1edf c\u00f9ng m\u1ed9t th\u1eddi \u0111i\u1ec3m hi\u1ec3n th\u1ecb c\u00f3 th\u1ec3 cho th\u1ea5y kim ch\u1ea1m v\u00e0o nhau ho\u1eb7c b\u1ed9 truy\u1ec1n kim g\u1eb7p l\u1ef1c c\u1ea3n.<\/figcaption><\/figure>\n

    C\u00e1c kim ch\u1ea1m v\u00e0o nhau<\/h3>\n

    Kim gi\u1edd, kim ph\u00fat v\u00e0 kim gi\u00e2y n\u1eb1m \u1edf c\u00e1c \u0111\u1ed9 cao kh\u00e1c nhau nh\u01b0ng l\u01b0\u1edbt qua nhau. Kim b\u1ecb cong ho\u1eb7c l\u1eafp kh\u00f4ng \u0111\u00fang c\u00f3 th\u1ec3 ch\u1ea1m v\u00e0o kim kh\u00e1c t\u1ea1i m\u1ed9t v\u1ecb tr\u00ed l\u1eb7p l\u1ea1i. \u0110\u1ed3ng h\u1ed3 c\u00f3 th\u1ec3 d\u1eebng, ch\u1ea1y kh\u1ef1ng ho\u1eb7c ch\u1ea1y l\u1ea1i sau khi \u0111\u1ed5i nh\u1eb9 h\u01b0\u1edbng \u0111\u1eb7t. T\u00ecnh tr\u1ea1ng ti\u1ebfp x\u00fac c\u00f3 th\u1ec3 xu\u1ea5t hi\u1ec7n sau va \u0111\u1eadp, thay k\u00ednh, s\u1eeda m\u1eb7t s\u1ed1 ho\u1eb7c l\u1ea7n b\u1ea3o d\u01b0\u1ee1ng tr\u01b0\u1edbc \u0111\u00f3.<\/p>\n

    Quan s\u00e1t ngang qua m\u1eb7t s\u1ed1 d\u01b0\u1edbi \u00e1nh s\u00e1ng gi\u00e1n ti\u1ebfp, \u0111\u1ee7 s\u00e1ng m\u00e0 kh\u00f4ng m\u1edf v\u1ecf \u0111\u1ed3ng h\u1ed3. Ki\u1ec3m tra xem c\u00e1c m\u1eb7t ph\u1eb3ng c\u1ee7a kim c\u00f3 v\u1ebb kh\u00f4ng \u0111\u1ec1u kh\u00f4ng v\u00e0 tri\u1ec7u ch\u1ee9ng c\u00f3 x\u1ea3y ra khi hai kim ch\u1ed3ng l\u00ean nhau kh\u00f4ng. Kh\u00f4ng \u1ea5n v\u00e0o k\u00ednh ho\u1eb7c c\u1ed1 l\u00e0m cong kim b\u1eb1ng n\u00fam ch\u1ec9nh. Khe h\u1edf r\u1ea5t nh\u1ecf, v\u00e0 m\u1ed9t \u0111i\u1ec1u ch\u1ec9nh t\u01b0\u1edfng ch\u1eebng \u0111\u01a1n gi\u1ea3n c\u0169ng c\u00f3 th\u1ec3 l\u00e0m x\u01b0\u1edbc m\u1eb7t s\u1ed1 ho\u1eb7c khi\u1ebfn kim b\u1ecb l\u1ecfng.<\/p>\n

    Kim c\u1ecd v\u00e0o m\u1eb7t s\u1ed1 ho\u1eb7c k\u00ednh<\/h3>\n

    Kim n\u1eb1m qu\u00e1 th\u1ea5p c\u00f3 th\u1ec3 c\u1ecd v\u00e0o c\u1ecdc s\u1ed1 n\u1ed5i ho\u1eb7c b\u1ec1 m\u1eb7t m\u1eb7t s\u1ed1. Kim n\u1eb1m qu\u00e1 cao c\u00f3 th\u1ec3 ch\u1ea1m v\u00e0o m\u1eb7t trong c\u1ee7a k\u00ednh. L\u1ef1c c\u1ea3n c\u00f3 th\u1ec3 xu\u1ea5t hi\u1ec7n li\u00ean t\u1ee5c ho\u1eb7c ch\u1ec9 \u1edf m\u1ed9t khu v\u1ef1c n\u1ebfu m\u1eb7t s\u1ed1, k\u00ednh ho\u1eb7c kim kh\u00f4ng ho\u00e0n to\u00e0n ph\u1eb3ng. C\u00e1c v\u1ebft tr\u00f2n nh\u1ecf tr\u00ean m\u1eb7t s\u1ed1 ho\u1eb7c k\u00ednh c\u00f3 th\u1ec3 l\u00e0 d\u1ea5u hi\u1ec7u, nh\u01b0ng kh\u00f4ng th\u1ea5y v\u1ebft x\u01b0\u1edbc kh\u00f4ng c\u00f3 ngh\u0129a l\u00e0 kim kh\u00f4ng ch\u1ea1m v\u00e0o.<\/p>\n

    H\u01b0 h\u1ecfng b\u1ed9 truy\u1ec1n kim ho\u1eb7c h\u1ec7 th\u1ed1ng b\u00e1nh r\u0103ng<\/h3>\n

    B\u1ed9 truy\u1ec1n kim chuy\u1ec3n chuy\u1ec3n \u0111\u1ed9ng quay c\u1ee7a b\u1ed9 m\u00e1y th\u00e0nh c\u00e1ch hi\u1ec3n th\u1ecb gi\u1edd v\u00e0 ph\u00fat quen thu\u1ed9c. R\u0103ng b\u00e1nh xe b\u1ecb h\u1ecfng, tr\u1ee5c quay b\u1ecb cong, b\u1ee5i b\u1ea9n ho\u1eb7c ma s\u00e1t qu\u00e1 m\u1ee9c c\u00f3 th\u1ec3 g\u00e2y ra s\u1ef1 c\u1ed1 l\u1eb7p l\u1ea1i sau m\u1ed7i v\u00f2ng quay c\u1ee7a b\u00e1nh xe. V\u00ec v\u1eady, th\u1eddi \u0111i\u1ec3m d\u1eebng hi\u1ec3n th\u1ecb c\u00f3 th\u1ec3 \u1ed5n \u0111\u1ecbnh \u0111\u00e1ng k\u1ec3. Vi\u1ec7c ch\u1ea9n \u0111o\u00e1n \u0111\u00f2i h\u1ecfi ph\u1ea3i th\u00e1o r\u1eddi v\u00e0 ki\u1ec3m tra; ch\u1ee7 \u0111\u1ed3ng h\u1ed3 kh\u00f4ng th\u1ec3 nh\u1eadn bi\u1ebft r\u0103ng b\u00e1nh xe b\u1ecb h\u1ecfng t\u1eeb b\u00ean ngo\u00e0i.<\/p>\n

    L\u1ef1c c\u1ea3n t\u1eeb l\u1ecbch<\/h3>\n

    N\u1ebfu \u0111\u1ed3ng h\u1ed3 d\u1eebng g\u1ea7n n\u1eeda \u0111\u00eam, h\u00e3y ghi l\u1ea1i xem l\u1ecbch ng\u00e0y ho\u1eb7c th\u1ee9 \u0111\u00e3 b\u1eaft \u0111\u1ea7u chuy\u1ec3n ch\u01b0a. \u1ede nhi\u1ec1u b\u1ed9 m\u00e1y, c\u01a1 c\u1ea5u l\u1ecbch ch\u1ecbu t\u1ea3i t\u0103ng d\u1ea7n trong v\u00e0i gi\u1edd quanh n\u1eeda \u0111\u00eam. M\u1ed9t b\u1ed9 ph\u1eadn \u0111\u01b0\u1ee3c ch\u1ec9nh sai, b\u1ecb h\u1ecfng ho\u1eb7c ch\u1ec9 \u0103n kh\u1edbp m\u1ed9t ph\u1ea7n c\u00f3 th\u1ec3 t\u1ea1o ra l\u1ef1c c\u1ea3n qu\u00e1 l\u1edbn. Kh\u00f4ng bao gi\u1edd d\u00f9ng ch\u1ee9c n\u0103ng ch\u1ec9nh nhanh l\u1ecbch trong kho\u1ea3ng th\u1eddi gian b\u1ecb h\u1ea1n ch\u1ebf c\u1ee7a b\u1ed9 m\u00e1y, tr\u1eeb khi s\u00e1ch h\u01b0\u1edbng d\u1eabn ch\u00ednh x\u00e1c c\u1ee7a m\u1eabu \u0111\u1ed3ng h\u1ed3 x\u00e1c nh\u1eadn thao t\u00e1c \u0111\u00f3 an to\u00e0n.<\/p>\n

    Nh\u1eefng nguy\u00ean nh\u00e2n kh\u00e1c c\u00f3 bi\u1ec3u hi\u1ec7n l\u1eb7p l\u1ea1i<\/h2>\n

    T\u1eeb t\u00ednh th\u01b0\u1eddng khi\u1ebfn \u0111\u1ed3ng h\u1ed3 c\u01a1 ch\u1ea1y nhanh ho\u1eb7c ch\u1eadm, thay v\u00ec d\u1eebng t\u1ea1i m\u1ed9t v\u1ecb tr\u00ed ch\u00ednh x\u00e1c tr\u00ean m\u1eb7t s\u1ed1. Seiko gi\u1ea3i th\u00edch r\u1eb1ng d\u00e2y t\u00f3c b\u1ecb nhi\u1ec5m t\u1eeb c\u00f3 th\u1ec3 khi\u1ebfn dao \u0111\u1ed9ng c\u1ee7a b\u00e1nh l\u1eafc m\u1ea5t \u1ed5n \u0111\u1ecbnh v\u00e0 \u0111\u1ed3ng h\u1ed3 c\u01a1 v\u1eabn c\u00f3 th\u1ec3 c\u00f2n nhi\u1ec5m t\u1eeb sau khi ngu\u1ed3n t\u1eeb tr\u01b0\u1eddng b\u00ean ngo\u00e0i \u0111\u00e3 \u0111\u01b0\u1ee3c lo\u1ea1i b\u1ecf. Trong khi th\u1eed nghi\u1ec7m, h\u00e3y \u0111\u1ec3 \u0111\u1ed3ng h\u1ed3 tr\u00e1nh xa bao m\u00e1y t\u00ednh b\u1ea3ng c\u00f3 nam ch\u00e2m, loa, kh\u00f3a t\u00fai x\u00e1ch v\u00e0 ph\u1ee5 ki\u1ec7n s\u1ea1c. La b\u00e0n ho\u1eb7c \u1ee9ng d\u1ee5ng tr\u00ean \u0111i\u1ec7n tho\u1ea1i kh\u00f4ng ph\u1ea3i c\u00f4ng c\u1ee5 ch\u1ea9n \u0111o\u00e1n \u0111\u00e1ng tin c\u1eady; th\u1ee3 s\u1eeda \u0111\u1ed3ng h\u1ed3 c\u00f3 th\u1ec3 ki\u1ec3m tra v\u00e0 kh\u1eed t\u1eeb b\u1ed9 m\u00e1y \u0111\u00fang c\u00e1ch.<\/p>\n

    H\u01b0 h\u1ecfng do va \u0111\u1eadp c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m bi\u00ean \u0111\u1ed9 dao \u0111\u1ed9ng c\u1ee7a b\u00e1nh l\u1eafc, khi\u1ebfn kim b\u1ecb l\u1ec7ch, l\u00e0m h\u1ecfng tr\u1ee5c quay ho\u1eb7c \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn h\u1ec7 th\u1ed1ng l\u00ean c\u00f3t t\u1ef1 \u0111\u1ed9ng. Khi \u0111\u00f3, \u0111\u1ed3ng h\u1ed3 c\u00f3 th\u1ec3 ch\u1ec9 ch\u1ea1y khi \u0111\u01b0\u1ee3c l\u00ean c\u00f3t \u0111\u1ea7y \u0111\u1ee7 ho\u1eb7c \u1edf m\u1ed9t s\u1ed1 v\u1ecb tr\u00ed nh\u1ea5t \u0111\u1ecbnh. N\u1ebfu hi\u1ec7n t\u01b0\u1ee3ng b\u1eaft \u0111\u1ea7u ngay sau khi \u0111\u1ed3ng h\u1ed3 b\u1ecb r\u01a1i, qu\u00fd kh\u00e1ch kh\u00f4ng n\u00ean ti\u1ebfp t\u1ee5c l\u1eb7p l\u1ea1i c\u00e1c th\u1eed nghi\u1ec7m ch\u1ec9 \u0111\u1ec3 x\u00e1c nh\u1eadn \u0111i\u1ec1u \u0111\u00f3.<\/p>\n

    D\u1ea7u b\u00f4i tr\u01a1n c\u0169, b\u1ee5i b\u1ea9n, hao m\u00f2n ho\u1eb7c d\u00e2y c\u00f3t ch\u00ednh \u0111\u00e3 m\u00f2n c\u0169ng c\u00f3 th\u1ec3 khi\u1ebfn b\u1ed9 m\u00e1y ch\u1ec9 c\u00f2n r\u1ea5t \u00edt m\u00f4-men xo\u1eafn d\u1ef1 ph\u00f2ng. \u0110\u1ed3ng h\u1ed3 c\u00f3 th\u1ec3 ch\u1ea1y khi \u0111eo tr\u00ean c\u1ed5 tay nh\u01b0ng d\u1eebng khi \u0111\u01b0\u1ee3c \u0111\u1eb7t v\u1edbi n\u00fam ch\u1ec9nh h\u01b0\u1edbng l\u00ean tr\u00ean, ho\u1eb7c d\u1eebng khi t\u1ea3i c\u1ee7a l\u1ecbch t\u0103ng l\u00ean. Th\u1ee3 s\u1eeda ch\u1eefa \u0111\u1ee7 chuy\u00ean m\u00f4n c\u00f3 th\u1ec3 \u0111o sai s\u1ed1, bi\u00ean \u0111\u1ed9 dao \u0111\u1ed9ng, l\u1ed7i nh\u1ecbp, hi\u1ec7u su\u1ea5t l\u00ean c\u00f3t v\u00e0 m\u1ee9c d\u1ef1 tr\u1eef n\u0103ng l\u01b0\u1ee3ng \u1edf nhi\u1ec1u v\u1ecb tr\u00ed, thay v\u00ec ch\u1ec9 d\u1ef1a v\u00e0o m\u1ed9t tri\u1ec7u ch\u1ee9ng.<\/p>\n

    Danh s\u00e1ch ki\u1ec3m tra ch\u1ea9n \u0111o\u00e1n an to\u00e0n<\/h2>\n