{"id":6246657,"date":"2021-12-17T02:14:44","date_gmt":"2021-12-17T02:14:44","guid":{"rendered":"https:\/\/yp.vn\/?p=6246657"},"modified":"2022-01-11T10:03:15","modified_gmt":"2022-01-11T03:03:15","slug":"nguyen-nhan-may-bom-thoi-khi-phat-ra-tieng-on-va-bien-phap-khac-phuc","status":"publish","type":"post","link":"https:\/\/yp.vn\/nguyen-nhan-may-bom-thoi-khi-phat-ra-tieng-on-va-bien-phap-khac-phuc\/","title":{"rendered":"Nguy\u00ean nh\u00e2n m\u00e1y b\u01a1m th\u1ed5i kh\u00ed ph\u00e1t ra ti\u1ebfng \u1ed3n v\u00e0 bi\u1ec7n ph\u00e1p kh\u1eafc ph\u1ee5c"},"content":{"rendered":"

M\u00e1y th\u1ed5i kh\u00ed<\/a> l\u00e0 m\u1ed9t lo\u1ea1i thi\u1ebft b\u1ecb c\u01a1 kh\u00ed \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn trong n\u1ec1n c\u00f4ng nghi\u1ec7p hi\u1ec7n \u0111\u1ea1i, c\u00f3 c\u00f4ng d\u1ee5ng \u0111a d\u1ea1ng, nhi\u1ec1u \u0111\u1ed1i t\u01b0\u1ee3ng s\u1eed d\u1ee5ng, \u0111\u1ed3ng th\u1eddi n\u00f3 c\u0169ng t\u1ea1o ra ti\u1ebfng \u1ed3n l\u1edbn. Ti\u1ebfng \u1ed3n c\u1ee7a m\u00e1y th\u1ed5i kh\u00ed c\u00f4ng nghi\u1ec7p c\u0169ng l\u00e0 m\u1ed9t th\u1ef1c tr\u1ea1ng ph\u1ed5 bi\u1ebfn c\u1ee7a \u00f4 nhi\u1ec5m ti\u1ebfng \u1ed3n, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u00f4 nhi\u1ec5m ti\u1ebfng \u1ed3n c\u1ee7a m\u00e1y th\u1ed5i kh\u00ed trong c\u00e1c nh\u00e0 m\u00e1y \u0111\u00f4 th\u1ecb, ti\u1ebfng \u1ed3n do rung \u0111\u1ed9ng c\u1ee7a m\u00e1y th\u1ed5i kh\u00ed t\u1ea1o ra c\u00f3 th\u1ec3 g\u00e2y nguy h\u1ea1i \u0111\u1ebfn s\u1ee9c kh\u1ecfe c\u1ee7a c\u00f4ng nh\u00e2n trong nh\u00e0 m\u00e1y v\u00e0 ng\u01b0\u1eddi d\u00e2n c\u1ee7a c\u1ed9ng \u0111\u1ed3ng l\u00e2n c\u1eadn. V\u00ec v\u1eady, c\u1ea7n gi\u1ea3m thi\u1ec3u nh\u1eefng nguy hi\u1ec3m do ti\u1ebfng \u1ed3n c\u1ee7a m\u00e1y th\u1ed5i kh\u00ed g\u00e2y ra. H\u00f4m nay c\u00f9ng yp.vn \u0111i t\u00ecm hi\u1ec3u nguy\u00ean nh\u00e2n c\u1ee5 th\u1ec3 v\u00e0 bi\u1ec7n ph\u00e1p x\u1eed l\u00fd do ti\u1ebfng \u1ed3n c\u1ee7a m\u00e1y th\u1ed5i kh\u00ed c\u00f4ng nghi\u1ec7p.<\/p>\n

<\/p>\n

1. Ngu\u1ed3n g\u1ed1c c\u1ee7a ti\u1ebfng \u1ed3n c\u1ee7a m\u00e1y th\u1ed5i kh\u00ed c\u00f4ng nghi\u1ec7p<\/strong><\/h3>\n

Ti\u1ebfng \u1ed3n c\u1ee7a m\u00e1y th\u1ed5i kh\u00ed c\u00f4ng nghi\u1ec7p ch\u1ee7 y\u1ebfu \u0111\u1ebfn t\u1eeb b\u1ed1n y\u1ebfu t\u1ed1:<\/p>\n

– M\u1ed9t l\u00e0 ti\u1ebfng \u1ed3n kh\u00ed \u0111\u1ed9ng trong m\u00e1y do s\u1ef1 x\u00e1o tr\u1ed9n c\u1ee7a d\u00f2ng kh\u00ed, t\u01b0\u01a1ng t\u00e1c gi\u1eefa kh\u00ed v\u1edbi kh\u00ed v\u00e0 kh\u00ed v\u1edbi v\u1eadt.<\/p>\n

– Th\u1ee9 hai l\u00e0 ti\u1ebfng \u1ed3n t\u1ea1o ra do ma s\u00e1t v\u00e0 va ch\u1ea1m c\u1ee7a c\u00e1c b\u1ec1 m\u1eb7t r\u1eafn, t\u1ee9c l\u00e0 ti\u1ebfng \u1ed3n c\u01a1 h\u1ecdc.<\/p>\n

– Th\u1ee9 ba l\u00e0 nhi\u1ec5u \u0111i\u1ec7n t\u1eeb do \u0111\u1ed9ng c\u01a1 ph\u00e1t ra. Ti\u1ebfng \u1ed3n \u0111i\u1ec7n t\u1eeb c\u1ee7a \u0111\u1ed9ng c\u01a1 th\u1ea5p h\u01a1n ti\u1ebfng \u1ed3n kh\u00ed \u0111\u1ed9ng h\u1ecdc v\u00e0 ti\u1ebfng \u1ed3n c\u01a1 h\u1ecdc.<\/p>\n

– Th\u1ee9 t\u01b0 l\u00e0 ti\u1ebfng \u1ed3n do s\u1ef1 rung c\u1ee7a qu\u1ea1t, m\u1ed9t ph\u1ea7n ti\u1ebfng \u1ed3n n\u00e0y \u0111\u01b0\u1ee3c m\u00e1y rung truy\u1ec1n tr\u1ef1c ti\u1ebfp ra kh\u00f4ng gian, ph\u1ea7n c\u00f2n l\u1ea1i truy\u1ec1n xu\u1ed1ng m\u1eb7t \u0111\u1ea5t ho\u1eb7c c\u00f4ng tr\u00ecnh ki\u1ebfn tr\u00fac th\u00f4ng qua ph\u1ea7n m\u00f3ng c\u1ee7a m\u00e1y. \u0110\u1eb7c bi\u1ec7t l\u00e0 ti\u1ebfng \u1ed3n kh\u00ed \u0111\u1ed9ng h\u1ecdc c\u1ee7a qu\u1ea1t, n\u00f3 bao g\u1ed3m ti\u1ebfng \u1ed3n quay do l\u1ef1c rung t\u1ea1o ra theo chu k\u1ef3 v\u00e0 ti\u1ebfng \u1ed3n do d\u00f2ng \u0111i\u1ec7n xo\u00e1y t\u1ea1o ra b\u1edfi b\u1ea5t k\u1ef3 l\u1ef1c ng\u1eabu nhi\u00ean n\u00e0o.<\/p>\n

Nhi\u1ec5u quay c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 nhi\u1ec5u t\u1ea7n s\u1ed1 r\u1eddi r\u1ea1c, c\u01a1 ch\u1ebf xu\u1ea5t hi\u1ec7n c\u1ee7a n\u00f3 nh\u01b0 sau:<\/strong><\/p>\n

a. \u0110\u1ea7u ti\u00ean, ti\u1ebfng \u1ed3n quay \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh khi c\u00e1c c\u00e1nh tr\u00ean b\u00e1nh xe c\u00f4ng t\u00e1c quay so v\u1edbi m\u00f4i tr\u01b0\u1eddng kh\u00ed xung quanh, g\u00e2y ra xung \u00e1p su\u1ea5t c\u1ee7a kh\u00ed xung quanh. \u00c1p su\u1ea5t c\u1ee7a m\u1ed9t h\u1ea1t kh\u00ed dao \u0111\u1ed9ng nhanh ch\u00f3ng m\u1ed9t l\u1ea7n, v\u00e0 c\u00e1c c\u00e1nh quay li\u00ean t\u1ee5c \u0111i qua t\u1eebng c\u00e1i m\u1ed9t. Qua \u0111\u00f3 xung \u00e1p su\u1ea5t \u0111\u01b0\u1ee3c t\u1ea1o ra li\u00ean t\u1ee5c, g\u00e2y ra s\u1ef1 kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u l\u1edbn c\u1ee7a d\u00f2ng kh\u00f4ng kh\u00ed, do \u0111\u00f3 ph\u00e1t ra ti\u1ebfng \u1ed3n ra xung quanh.<\/p>\n

b Th\u1ee9 hai, nhi\u1ec5u d\u00f2ng \u0111i\u1ec7n xo\u00e1y c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 nhi\u1ec5u nhi\u1ec5u lo\u1ea1n. Nguy\u00ean nh\u00e2n ch\u1ee7 y\u1ebfu l\u00e0 do s\u1ef1 h\u00ecnh th\u00e0nh l\u1edbp ranh gi\u1edbi v\u00e0 s\u1ef1 ph\u00e2n t\u00e1ch c\u1ee7a d\u00f2ng xo\u00e1y khi lu\u1ed3ng kh\u00f4ng kh\u00ed ch\u1ea1y qua b\u1ec1 m\u1eb7t c\u00e1nh, \u0111i\u1ec1u n\u00e0y g\u00e2y ra \u00e1p l\u1ef1c l\u00ean c\u00e1nh qu\u1ea1t v\u00e0 ph\u00e1t ra m\u1ed9t lo\u1ea1i ti\u1ebfng \u1ed3n d\u00f2ng ch\u1ea3y kh\u00f4ng \u1ed5n \u0111\u1ecbnh. B\u1edfi v\u00ec t\u1ea7n s\u1ed1 c\u1ee7a ti\u1ebfng \u1ed3n d\u00f2ng \u0111i\u1ec7n xo\u00e1y ch\u1ee7 y\u1ebfu ph\u1ee5 thu\u1ed9c v\u00e0o t\u1ed1c \u0111\u1ed9 t\u01b0\u01a1ng \u0111\u1ed1i c\u1ee7a c\u00e1c c\u00e1nh v\u00e0 lu\u1ed3ng kh\u00f4ng kh\u00ed. V\u00e0 t\u1ed1c \u0111\u1ed9 t\u01b0\u01a1ng \u0111\u1ed1i li\u00ean quan \u0111\u1ebfn v\u1eadn t\u1ed1c chu vi c\u1ee7a b\u00e1nh xe l\u00e0m vi\u1ec7c, v\u1eadn t\u1ed1c n\u00e0y thay \u0111\u1ed5i li\u00ean t\u1ee5c theo kho\u1ea3ng c\u00e1ch t\u1eeb m\u1ed7i \u0111i\u1ec3m c\u1ee7a b\u00e1nh xe l\u00e0m vi\u1ec7c \u0111\u1ebfn tr\u1ee5c c\u1ee7a tr\u1ee5c quay.<\/p>\n

2. C\u00e1c bi\u1ec7n ph\u00e1p gi\u1ea3m ti\u1ebfng \u1ed3n cho m\u00e1y th\u1ed5i kh\u00ed<\/a> c\u00f4ng nghi\u1ec7p<\/strong><\/h3>\n

– L\u1ef1a ch\u1ecdn h\u1ee3p l\u00fd c\u00e1c th\u00f4ng s\u1ed1 h\u00ecnh h\u1ecdc c\u1ee7a ph\u1ea7n l\u01b0u l\u01b0\u1ee3ng cho m\u00e1y th\u1ed1i kh\u00ed c\u00f3 qu\u1ea1t h\u01b0\u1edbng tr\u1ee5c \u0111\u1ec3 gi\u1ea3m nhi\u1ec5u d\u00f2ng xo\u00e1y<\/p>\n

C\u00e1c th\u1eed nghi\u1ec7m \u0111\u00e3 ch\u1ee9ng minh r\u1eb1ng \u0111\u1ed9 \u1ed3n d\u00f2ng \u0111i\u1ec7n xo\u00e1y c\u1ee7a nhi\u1ec1u m\u00e1y th\u1ed5i kh\u00ed hay qu\u1ea1t c\u00f4ng nghi\u1ec7p d\u00f2ng ch\u1ea3y qua ph\u1ee5 thu\u1ed9c ph\u1ea7n l\u1edbn v\u00e0o c\u00e1c th\u00f4ng s\u1ed1 t\u1ea7ng c\u1ee7a b\u00e1nh c\u00f4ng t\u00e1c v\u00e0 c\u00e1nh d\u1eabn h\u01b0\u1edbng. Do \u0111\u00f3, vi\u1ec7c l\u1ef1a ch\u1ecdn c\u00e1c th\u00f4ng s\u1ed1 t\u1ea7ng h\u1ee3p l\u00fd v\u1edbi ti\u1ec1n \u0111\u1ec1 \u0111\u1ea3m b\u1ea3o l\u01b0u l\u01b0\u1ee3ng v\u00e0 \u00e1p su\u1ea5t c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m ti\u1ebfng \u1ed3n kh\u00ed \u0111\u1ed9ng h\u1ecdc.<\/p>\n

– L\u1ef1a ch\u1ecdn h\u1ee3p l\u00fd khe h\u1edf h\u01b0\u1edbng tr\u1ee5c c\u1ee7a m\u00e1y th\u1ed5i kh\u00ed c\u00f3 qu\u1ea1t h\u01b0\u1edbng tr\u1ee5c c\u00f3 th\u1ec3 gi\u1ea3m ti\u1ebfng \u1ed3n quay<\/p>\n

Ti\u1ebfng \u1ed3n \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1edfi kho\u1ea3ng c\u00e1ch tr\u1ee5c gi\u1eefa d\u00f2ng \u0111\u1ed9ng c\u01a1 d\u00f2ng tr\u1ee5c v\u00e0 d\u00f2ng th\u00e1c t\u0129nh l\u00e0 do s\u1ef1 giao thoa l\u1eabn nhau c\u1ee7a tr\u01b0\u1eddng \u00e1p su\u1ea5t v\u00e0 \u1ea3nh h\u01b0\u1edfng c\u1ee7a s\u1ef1 \u0111\u00e1nh th\u1ee9c c\u1ee7a d\u00f2ng th\u00e1c ph\u00eda tr\u01b0\u1edbc. Vi\u1ec7c m\u1edf r\u1ed9ng khe h\u1edf d\u1ecdc tr\u1ee5c c\u00f3 th\u1ec3 l\u00e0m cho kh\u00ed ch\u1ea3y ra t\u1eeb t\u1ea7ng ph\u00eda tr\u01b0\u1edbc d\u1ea7n d\u1ea7n tr\u1edf n\u00ean \u0111\u1ed3ng \u0111\u1ec1u, gi\u1ea3m nhi\u1ec5u \u0111\u1ebfn ph\u00eda sau v\u00e0 do \u0111\u00f3 gi\u1ea3m ti\u1ebfng \u1ed3n.<\/p>\n

– L\u1ef1a ch\u1ecdn h\u1ee3p l\u00fd kho\u1ea3ng c\u00e1ch t\u1eeb c\u00e1nh qu\u1ea1t \u0111\u1ebfn l\u01b0\u1ee1i volum \u0111\u1ec3 gi\u1ea3m ti\u1ebfng \u1ed3n quay c\u1ee7a qu\u1ea1t ly t\u00e2m.<\/p>\n

\"M\u00e1y<\/p>\n

– \u0110\u1ed9 nghi\u00eang c\u00e1nh qu\u1ea1t 2,4 v\u00f2ng: L\u1ef1c kh\u00ed \u0111\u1ed9ng h\u1ecdc xung tu\u1ea7n ho\u00e0n \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1edfi t\u1ed1c \u0111\u1ed9 dao \u0111\u1ed9ng tu\u1ea7n ho\u00e0n c\u1ee7a d\u00f2ng kh\u00f4ng kh\u00ed c\u1ee7a t\u1ea7ng c\u00e1nh qu\u1ea1t c\u0169ng l\u00e0m cho l\u01b0\u1ee1i dao \u0111\u1ed9ng t\u01b0\u01a1ng t\u00e1c \u0111\u1ec3 t\u1ea1o ra ti\u1ebfng \u1ed3n quay. \u0110\u1ed9 l\u1edbn c\u1ee7a ti\u1ebfng \u1ed3n n\u00e0y li\u00ean quan \u0111\u1ebfn c\u01b0\u1eddng \u0111\u1ed9 c\u1ee7a l\u1ef1c kh\u00ed \u0111\u1ed9ng h\u1ecdc xung v\u00e0 di\u1ec7n t\u00edch h\u01b0\u1edbng gi\u00f3 c\u1ee7a L\u01b0\u1ee1i xo\u00e1y. L\u01b0\u1ee1i v\u00f2ng xo\u1eafn \u0111\u01b0\u1ee3c l\u00e0m nghi\u00eang, di\u1ec7n t\u00edch t\u00e1c d\u1ee5ng c\u1ee7a l\u1ef1c kh\u00ed \u0111\u1ed9ng h\u1ecdc xung c\u00f9ng pha nh\u1ecf h\u01a1n, v\u00e0 ti\u1ebfng \u1ed3n b\u1ee9c x\u1ea1 c\u0169ng gi\u1ea3m.<\/p>\n

– \u0110\u1eb7t c\u1ea5u tr\u00fac ngo\u1eb1n ngo\u00e8o tr\u00ean m\u1eb7t h\u00fat gi\u00f3 v\u00e0 \u0111\u1ea7u ra c\u1ee7a l\u01b0\u1ee1i dao di chuy\u1ec3n<\/p>\n

Thi\u1ebft l\u1eadp m\u1ed9t c\u1ea5u tr\u00fac ngo\u1eb1n ngo\u00e8o tr\u00ean c\u00e1c c\u1ea1nh \u0111\u1ea7u v\u00e0o v\u00e0 \u0111\u1ea7u ra kh\u00f4ng kh\u00ed c\u1ee7a c\u00e1c c\u00e1nh chuy\u1ec3n \u0111\u1ed9ng. C\u00f3 th\u1ec3 l\u00e0m cho d\u00f2ng ch\u1ea3y t\u1ea7ng tr\u00ean c\u00e1c c\u00e1nh chuy\u1ec3n \u0111\u1ed9ng th\u00e0nh d\u00f2ng ch\u1ea3y h\u1ed7n lo\u1ea1n s\u1edbm h\u01a1n, \u0111\u1ec3 tr\u00e1nh c\u00e1c s\u00f3ng kh\u00f4ng \u1ed5n \u0111\u1ecbnh trong d\u00f2ng ch\u1ea3y t\u1ea7ng g\u00e2y t\u00e1ch xo\u00e1y, xo\u00e1y ri\u00eang bi\u1ec7t v\u00e0 ti\u1ebfng \u1ed3n gi\u1ea3m.<\/p>\n

–\u00a0 L\u1eafp b\u1ed9 gi\u1ea3m thanh cho m\u00e1y th\u1ed5i kh\u00ed<\/p>\n

C\u00f3 r\u1ea5t nhi\u1ec1u lo\u1ea1i gi\u1ea3m thanh gi\u1ea3m ti\u1ebfng \u1ed3n cho m\u00e1y th\u1ed5i kh\u00ed. Nh\u01b0ng c\u00f3 th\u1ec3 chia ch\u00fang th\u00e0nh 6 lo\u1ea1i ch\u00ednh, \u0111\u00f3 l\u00e0 gi\u1ea3m thanh \u0111i\u1ec7n tr\u1edf, gi\u1ea3m thanh kh\u00e1ng, gi\u1ea3m thanh h\u1ee3p ch\u1ea5t tr\u1edf kh\u00e1ng, gi\u1ea3m thanh t\u1ea5m \u0111\u1ee5c l\u1ed7 si\u00eau nh\u1ecf, gi\u1ea3m thanh l\u1ed7 nh\u1ecf v\u00e0 gi\u1ea3m thanh ch\u1ee7 \u0111\u1ed9ng.<\/p>\n

+ B\u1ed9 gi\u1ea3m thanh \u0111i\u1ec7n tr\u1edf<\/p>\n

N\u00f3 ch\u1ee7 y\u1ebfu s\u1eed d\u1ee5ng v\u1eadt li\u1ec7u ti\u00eau \u00e2m x\u1ed1p \u0111\u1ec3 gi\u1ea3m ti\u1ebfng \u1ed3n. V\u1eadt li\u1ec7u ti\u00eau \u00e2m \u0111\u01b0\u1ee3c c\u1ed1 \u0111\u1ecbnh \u1edf ph\u1ea7n b\u00ean trong c\u1ee7a k\u00eanh d\u1eabn kh\u00ed. Ho\u1eb7c b\u1ed1 tr\u00ed trong \u0111\u01b0\u1eddng \u1ed1ng theo m\u1ed9t c\u00e1ch nh\u1ea5t \u0111\u1ecbnh \u0111\u1ec3 t\u1ea1o th\u00e0nh b\u1ed9 gi\u1ea3m \u00e2m \u0111i\u1ec7n tr\u1edf. Khi s\u00f3ng \u00e2m \u0111i v\u00e0o b\u1ed9 gi\u1ea3m \u00e2m \u0111i\u1ec7n tr\u1edf, m\u1ed9t ph\u1ea7n n\u0103ng l\u01b0\u1ee3ng \u00e2m thanh b\u1ecb c\u1ecd x\u00e1t trong c\u00e1c l\u1ed7 c\u1ee7a v\u1eadt li\u1ec7u polyol v\u00e0 chuy\u1ec3n th\u00e0nh nhi\u1ec7t v\u00e0 n\u0103ng l\u01b0\u1ee3ng b\u1ecb ti\u00eau t\u00e1n. Do \u0111\u00f3 s\u00f3ng \u00e2m \u0111i qua b\u1ed9 gi\u1ea3m \u00e2m b\u1ecb suy y\u1ebfu. B\u1ed9 gi\u1ea3m \u00e2m \u0111i\u1ec7n tr\u1edf gi\u1ed1ng nh\u01b0 m\u1ed9t m\u1ea1ch \u0111i\u1ec7n tr\u1edf thu\u1ea7n, v\u00e0 v\u1eadt li\u1ec7u h\u1ea5p th\u1ee5 \u00e2m thanh t\u01b0\u01a1ng t\u1ef1 nh\u01b0 m\u1ed9t \u0111i\u1ec7n tr\u1edf. V\u00ec v\u1eady, ng\u01b0\u1eddi ta g\u1ecdi lo\u1ea1i \u1ed1ng gi\u1ea3m \u00e2m n\u00e0y l\u00e0 \u1ed1ng gi\u1ea3m \u00e2m \u0111i\u1ec7n tr\u1edf. B\u1ed9 gi\u1ea3m \u00e2m \u0111i\u1ec7n tr\u1edf c\u00f3 t\u00e1c d\u1ee5ng gi\u1ea3m \u00e2m t\u1ed1t \u1edf t\u1ea7n s\u1ed1 trung v\u00e0 cao, nh\u01b0ng hi\u1ec7u qu\u1ea3 gi\u1ea3m \u00e2m k\u00e9m \u1edf t\u1ea7n s\u1ed1 th\u1ea5p. (Ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 gi\u1ea3m thanh c\u1ee7a t\u1ed5 m\u00e1y ph\u00e1t \u0111i\u1ec7n)<\/p>\n

\"Gi\u1edbi<\/p>\n

+ B\u1ed9 gi\u1ea3m thanh kh\u00e1ng<\/p>\n

N\u00f3 l\u00e0 s\u1ef1 k\u1ebft h\u1ee3p c\u1ee7a m\u1ed9t \u1ed1ng v\u00e0 m\u1ed9t bu\u1ed3ng c\u00f3 m\u1eb7t ph\u00e2n c\u00e1ch \u0111\u1ed9t ng\u1ed9t. N\u00f3 c\u00f3 v\u1ebb l\u00e0 m\u1ed9t b\u1ed9 l\u1ecdc \u00e2m, t\u01b0\u01a1ng t\u1ef1 nh\u01b0 m\u1ed9t b\u1ed9 l\u1ecdc \u0111i\u1ec7n. M\u1ed7i bu\u1ed3ng nh\u1ecf c\u00f3 \u1ed1ng l\u00e0 m\u1ed9t l\u01b0\u1edbi c\u1ee7a b\u1ed9 l\u1ecdc v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng kh\u00f4ng kh\u00ed trong \u1ed1ng l\u00e0 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi c\u1ee7a \u0111i\u1ec7n C\u1ea3m kh\u00e1ng v\u00e0 \u0111i\u1ec7n tr\u1edf \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 ch\u1ea5t l\u01b0\u1ee3ng \u00e2m v\u00e0 \u0111i\u1ec7n tr\u1edf \u00e2m. Th\u1ec3 t\u00edch kh\u00f4ng kh\u00ed trong bu\u1ed3ng t\u01b0\u01a1ng \u0111\u1ed3ng v\u1edbi \u0111i\u1ec7n dung, g\u1ecdi l\u00e0 s\u1ef1 tu\u00e2n th\u1ee7 \u00e2m h\u1ecdc. T\u01b0\u01a1ng t\u1ef1 nh\u01b0 b\u1ed9 l\u1ecdc \u0111i\u1ec7n, m\u1ed7i ph\u00f2ng nh\u1ecf c\u00f3 m\u1ed9t \u1ed1ng c\u00f3 t\u1ea7n s\u1ed1 t\u1ef1 nhi\u00ean ri\u00eang. Khi s\u00f3ng \u00e2m mang c\u00e1c t\u1ea7n s\u1ed1 kh\u00e1c nhau \u0111i v\u00e0o \u1ed1ng ng\u1eafn th\u1ee9 nh\u1ea5t, ch\u1ec9 m\u1ed9t s\u1ed1 t\u1ea7n s\u1ed1 nh\u1ea5t \u0111\u1ecbnh g\u1ea7n t\u1ea7n s\u1ed1 t\u1ef1 nhi\u00ean c\u1ee7a l\u01b0\u1edbi th\u1ee9 nh\u1ea5t m\u1edbi c\u00f3 th\u1ec3 \u0111i qua l\u01b0\u1edbi \u0111\u1ec3 \u0111\u1ebfn l\u1ed7 \u1ed1ng ng\u1eafn th\u1ee9 hai. S\u00f3ng \u00e2m kh\u00f4ng th\u1ec3 truy\u1ec1n qua l\u01b0\u1edbi. N\u00f3 ch\u1ec9 c\u00f3 th\u1ec3 b\u1ecb ph\u1ea3n x\u1ea1 qua l\u1ea1i trong ph\u00f2ng nh\u1ecf n\u00ean ta g\u1ecdi c\u1ea5u tr\u00fac n\u00e0y c\u00f3 ch\u1ee9c n\u0103ng l\u1ecdc s\u00f3ng \u00e2m l\u00e0 l\u1ecdc \u00e2m. Ch\u1ecdn \u1ed1ng v\u00e0 bu\u1ed3ng th\u00edch h\u1ee3p \u0111\u1ec3 k\u1ebft h\u1ee3p. N\u00f3 c\u00f3 th\u1ec3 l\u1ecdc ra ti\u1ebfng \u1ed3n c\u1ee7a c\u00e1c th\u00e0nh ph\u1ea7n t\u1ea7n s\u1ed1 nh\u1ea5t \u0111\u1ecbnh, \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ee5c \u0111\u00edch gi\u1ea3m ti\u1ebfng \u1ed3n. B\u1ed9 gi\u1ea3m thanh kh\u00e1ng ph\u00f9 h\u1ee3p \u0111\u1ec3 lo\u1ea1i b\u1ecf ti\u1ebfng \u1ed3n t\u1ea7n s\u1ed1 trung b\u00ecnh v\u00e0 th\u1ea5p.<\/p>\n

+B\u1ed9 gi\u1ea3m thanh t\u1ed5ng h\u1ee3p tr\u1edf kh\u00e1ng<\/p>\n

N\u00f3 \u0111\u01b0\u1ee3c c\u1ea5u t\u1ea1o b\u1edfi m\u1ed9t c\u01a1 c\u1ea5u \u0111i\u1ec7n tr\u1edf v\u00e0 m\u1ed9t c\u01a1 c\u1ea5u \u0111i\u1ec7n tr\u1edf theo m\u1ed9t c\u00e1ch nh\u1ea5t \u0111\u1ecbnh.<\/p>\n

+ B\u1ed9 gi\u1ea3m thanh t\u1ea5m c\u00f3 \u0111\u1ee5c l\u1ed7 si\u00eau nh\u1ecf<\/p>\n

N\u00f3i chung, n\u00f3 \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng m\u1ed9t t\u1ea5m kim lo\u1ea1i nguy\u00ean ch\u1ea5t c\u00f3 \u0111\u1ed9 d\u00e0y d\u01b0\u1edbi 1mm, v\u00e0 m\u1ed9t m\u0169i khoan c\u00f3 \u0111\u01b0\u1eddng k\u00ednh l\u1ed7 nh\u1ecf h\u01a1n 1mm \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u1ee5c t\u1ea5m, v\u00e0 t\u1ef7 l\u1ec7 th\u1ee7ng l\u00e0 1% -3%. Vi\u1ec7c ch\u1ecdn t\u1ef7 l\u1ec7 th\u1ee7ng v\u00e0 \u0111\u1ed9 s\u00e2u khoang kh\u00e1c nhau v\u1edbi \u0111\u1ed9 d\u00e0y t\u1ea5m kh\u00e1c nhau c\u00f3 th\u1ec3 ki\u1ec3m so\u00e1t hi\u1ec7u su\u1ea5t ph\u1ed5 c\u1ee7a b\u1ed9 gi\u1ea3m \u00e2m \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c hi\u1ec7u \u1ee9ng b\u1ed9 gi\u1ea3m \u00e2m t\u1ed1t trong d\u1ea3i t\u1ea7n s\u1ed1 y\u00eau c\u1ea7u.<\/p>\n

+ B\u1ed9 gi\u1ea3m thanh l\u1ed7 nh\u1ecf<\/p>\n

C\u1ea5u t\u1ea1o l\u00e0 m\u1ed9t \u1ed1ng th\u1eb3ng, hai \u0111\u1ea7u k\u00edn, tr\u00ean th\u00e0nh \u1ed1ng c\u00f3 khoan nhi\u1ec1u l\u1ed7 nh\u1ecf. Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a b\u1ed9 gi\u1ea3m thanh l\u1ed7 nh\u1ecf d\u1ef1a tr\u00ean ph\u1ed5 t\u1ea7n s\u1ed1 c\u1ee7a nhi\u1ec5u tia. N\u1ebfu gi\u1eef nguy\u00ean di\u1ec7n t\u00edch c\u1ee7a v\u00f2i phun v\u00e0 thay b\u1eb1ng nhi\u1ec1u v\u00f2i nh\u1ecf th\u00ec khi lu\u1ed3ng kh\u00ed \u0111i qua l\u1ed7 nh\u1ecf s\u1ebd ph\u1ed5 t\u1ea7n s\u1ed1 c\u1ee7a ti\u1ebfng \u1ed3n m\u00e1y bay ph\u1ea3n l\u1ef1c s\u1ebd chuy\u1ec3n sang t\u1ea7n s\u1ed1 cao ho\u1eb7c T\u1ea7n s\u1ed1 si\u00eau cao l\u00e0m gi\u1ea3m \u0111\u00e1ng k\u1ec3 c\u00e1c th\u00e0nh ph\u1ea7n \u00e2m thanh trong ph\u1ed5 t\u1ea7n s\u1ed1, do \u0111\u00f3 gi\u1ea3m nhi\u1ec5u v\u00e0 g\u00e2y h\u1ea1i cho con ng\u01b0\u1eddi.<\/p>\n

+ B\u1ed9 gi\u1ea3m thanh ho\u1ea1t \u0111\u1ed9ng<\/p>\n

Nguy\u00ean t\u1eafc c\u01a1 b\u1ea3n l\u00e0 trong tr\u01b0\u1eddng \u00e2m ban \u0111\u1ea7u, thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u1ea1o ra s\u00f3ng \u00e2m c\u00f3 c\u00f9ng \u0111\u1ed9 l\u1edbn v\u00e0 ng\u01b0\u1ee3c pha v\u1edbi \u00e1p su\u1ea5t \u00e2m ban \u0111\u1ea7u, \u0111\u1ec3 n\u00f3 c\u00f3 th\u1ec3 tri\u1ec7t ti\u00eau tr\u01b0\u1eddng \u00e2m ban \u0111\u1ea7u trong m\u1ed9t ph\u1ea1m vi nh\u1ea5t \u0111\u1ecbnh. Lo\u1ea1i b\u1ed9 gi\u1ea3m thanh n\u00e0y l\u00e0 m\u1ed9t b\u1ed9 thi\u1ebft b\u1ecb, bao g\u1ed3m ch\u1ee7 y\u1ebfu l\u00e0 micr\u00f4, b\u1ed9 khu\u1ebfch \u0111\u1ea1i, thi\u1ebft b\u1ecb chuy\u1ec3n pha, b\u1ed9 khu\u1ebfch \u0111\u1ea1i c\u00f4ng su\u1ea5t v\u00e0 loa.<\/p>\n

<\/p>\n

3. \u0110\u00e1nh gi\u00e1 t\u00e1c d\u1ee5ng c\u1ee7a vi\u1ec7c ki\u1ec3m so\u00e1t ti\u1ebfng \u1ed3n cho m\u00e1y th\u1ed5i kh\u00ed<\/strong><\/h3>\n

Ngu\u1ed3n c\u1ee7a ti\u1ebfng \u1ed3n t\u1ea1o ra b\u1edfi m\u00e1y th\u1ed5i kh\u00ed v\u00e0 ph\u01b0\u01a1ng ph\u00e1p lo\u1ea1i b\u1ecf nh\u1ecf ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c gi\u1ea3i th\u00edch \u1edf tr\u00ean. Tuy nhi\u00ean, vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1c bi\u1ec7n ph\u00e1p c\u1ee7a n\u00f3 c\u00f2n h\u1ea1n ch\u1ebf trong qu\u00e1 tr\u00ecnh \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf. V\u00ec v\u1eady \u0111\u1ed1i v\u1edbi c\u00e1c lo\u1ea1i m\u00e1y n\u00e9n v\u00e0 th\u1ed5i c\u00f3 \u0111\u1ed9 \u1ed3n cao, t\u1ed1c \u0111\u1ed9 cao, \u00e1p su\u1ea5t cao th\u00ec h\u1ea7u nh\u01b0 ch\u1ec9 s\u1eed d\u1ee5ng b\u1ed9 gi\u1ea3m \u00e2m \u0111\u1ec3 gi\u1ea3m ti\u1ebfng \u1ed3n. L\u1eafp \u0111\u1eb7t b\u1ed9 gi\u1ea3m \u00e2m \u1edf \u0111\u1ea7u v\u00e0o v\u00e0 \u0111\u1ea7u ra c\u1ee7a qu\u1ea1t, v\u00e0 gi\u00e1 tr\u1ecb gi\u1ea3m ti\u1ebfng \u1ed3n c\u00f3 th\u1ec3 \u0111\u1ea1t 20-40dB (A).<\/p>\n

Ngu\u1ed3n: maybomnuochcm.vn<\/p>\n","protected":false},"excerpt":{"rendered":"

M\u00e1y th\u1ed5i kh\u00ed l\u00e0 m\u1ed9t lo\u1ea1i thi\u1ebft b\u1ecb c\u01a1 kh\u00ed \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn trong n\u1ec1n c\u00f4ng nghi\u1ec7p hi\u1ec7n \u0111\u1ea1i, c\u00f3 c\u00f4ng d\u1ee5ng \u0111a d\u1ea1ng, nhi\u1ec1u \u0111\u1ed1i t\u01b0\u1ee3ng s\u1eed d\u1ee5ng, \u0111\u1ed3ng th\u1eddi n\u00f3 c\u0169ng t\u1ea1o ra ti\u1ebfng \u1ed3n l\u1edbn. Ti\u1ebfng \u1ed3n c\u1ee7a m\u00e1y th\u1ed5i kh\u00ed c\u00f4ng nghi\u1ec7p c\u0169ng l\u00e0 m\u1ed9t th\u1ef1c tr\u1ea1ng ph\u1ed5 bi\u1ebfn… Xem b\u00e0i vi\u1ebft<\/a><\/p>\n","protected":false},"author":8,"featured_media":6246658,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ep_exclude_from_search":false,"footnotes":""},"categories":[2511],"tags":[],"class_list":["post-6246657","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-may-bom-cong-nghiep"],"acf":[],"_links":{"self":[{"href":"https:\/\/yp.vn\/KmOMlj66m\/wp\/v2\/posts\/6246657","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/yp.vn\/KmOMlj66m\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/yp.vn\/KmOMlj66m\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/yp.vn\/KmOMlj66m\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/yp.vn\/KmOMlj66m\/wp\/v2\/comments?post=6246657"}],"version-history":[{"count":0,"href":"https:\/\/yp.vn\/KmOMlj66m\/wp\/v2\/posts\/6246657\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/yp.vn\/KmOMlj66m\/wp\/v2\/media\/6246658"}],"wp:attachment":[{"href":"https:\/\/yp.vn\/KmOMlj66m\/wp\/v2\/media?parent=6246657"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/yp.vn\/KmOMlj66m\/wp\/v2\/categories?post=6246657"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/yp.vn\/KmOMlj66m\/wp\/v2\/tags?post=6246657"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}