{"id":3642,"date":"2015-09-05T22:58:00","date_gmt":"2015-09-05T15:58:00","guid":{"rendered":"http:\/\/192.168.1.47\/?p=3642"},"modified":"2024-03-27T17:13:17","modified_gmt":"2024-03-27T10:13:17","slug":"ba-cong-nghe-khai-thac-nang-luong-ton-tai-trong-moi-truong-xung-quanh-harvesting-ambient-energy","status":"publish","type":"post","link":"https:\/\/eplusi.net\/en\/news\/ba-cong-nghe-khai-thac-nang-luong-ton-tai-trong-moi-truong-xung-quanh-harvesting-ambient-energy\/","title":{"rendered":"C\u00f4ng ngh\u1ec7 Harvesting Ambient Energy"},"content":{"rendered":"
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\"\"<\/span><\/p>

\u1ea2nh:<\/strong> Khoa K\u1ef9 Thu\u1eadt – \u0110\u1ea1i h\u1ecdc Illinois<\/em><\/span><\/p>

\u00a0<\/p>

Thi\u1ebft b\u1ecb ti\u00eau d\u00f9ng s\u1ebd ch\u1ea1y l\u00e2u h\u01a1n b\u1eb1ng c\u00e1ch k\u00e9o \u0111i\u1ec7n t\u1eeb m\u00f4i tr\u01b0\u1eddng.<\/strong><\/span><\/p>

N\u0103ng l\u01b0\u1ee3ng t\u1eeb xung:<\/strong> M\u1ed9t piezoelectric(*) harvester t\u1ea1m hi\u1ec3u l\u00e0 s\u1ef1 t\u01b0\u01a1ng t\u00e1c gi\u1eefa c\u00e1c t\u00e1c \u0111\u1ed9ng rung, dao \u0111\u1ed9ng c\u01a1 h\u1ecdc v\u1edbi c\u00e1c lo\u1ea1i v\u1eadt li\u1ec7u \u0111\u1eb7t bi\u1ec7t \u0111\u1ec3 t\u1ea1o ra d\u00f2ng \u0111i\u1ec7n \u0111\u01b0\u1ee3c nghi\u00ean c\u1ee9u b\u1eb1ng c\u00e1ch g\u1eafn thi\u1ebft b\u1ecb ch\u1ee9a v\u1eadt li\u1ec7u \u0111\u1eb7t bi\u1ec7t n\u00e0y tr\u00ean m\u1ed9t tr\u00e1i tim b\u00f2 v\u00e0 l\u1ea5y n\u0103ng l\u01b0\u1ee3ng t\u1eeb nh\u1ecbp \u0111\u1eadp c\u1ee7a tim. V\u1edbi nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng n\u00e0y c\u1ee7a thi\u1ebft b\u1ecb \u0111\u00e3 cung c\u1ea5p \u0111\u1ee7 n\u0103ng l\u01b0\u1ee3ng cho m\u1ed9t m\u00e1y tr\u1ee3 tim.<\/span><\/p>

Ch\u00fang ta \u0111ang b\u01b0\u1edbc v\u00e0o k\u1ef7 nguy\u00ean<\/strong> thu th\u1eadp (harvesting) m\u1ed9t l\u01b0\u1ee3ng nh\u1ecf c\u00e1c n\u0103ng l\u01b0\u1ee3ng th\u1eeba t\u1eeb m\u00f4i tr\u01b0\u1eddng xung quanh cung c\u1ea5p ng\u01b0\u1ee3c l\u1ea1i n\u0103ng l\u01b0\u1ee3ng cho c\u00e1c thi\u1ebft b\u1ecb l\u00e0m vi\u1ec7c t\u1ee9c th\u1eddi. Nhu c\u1ea7u c\u1ee7a Internet of things v\u00e0 s\u1ef1 ra \u0111\u1eddi c\u1ee7a c\u00e1c linh ki\u1ec7n chi ph\u00ed th\u1ea5p \u0111\u00e3 gi\u00fap \u0111\u01b0a h\u1ec7 th\u1ed1ng thu th\u1eadp n\u0103ng l\u01b0\u1ee3ng v\u00e0o c\u00e1c \u1ee9ng d\u1ee5ng t\u00edch h\u1ee3p m\u1edf r\u1ed9ng quy m\u00f4 \u1ee9ng d\u1ee5ng th\u1ef1c ti\u1ec5n.<\/span><\/p>

\u0110\u00f3 l\u00e0 th\u00f4ng \u0111i\u1ec7p \u0111\u01b0\u1ee3c \u0111\u01b0a ra \u1edf m\u1ed9t h\u1ed9i ngh\u1ecb \u0111\u01b0\u1ee3c t\u00e0i tr\u1ee3 b\u1edfi c\u00f4ng ty nghi\u00ean c\u1ee9u th\u1ecb tr\u01b0\u1eddng IDTechEx<\/span><\/a><\/strong>, t\u1ed5 ch\u1ee9c t\u1ea1i Santa Clara, California – Hoa K\u1ef3. Cu\u1ed1i th\u00e1ng 11 n\u0103m 2014, b\u1ea3y s\u1ef1 ki\u1ec7n di\u1ec5n ra c\u00f9ng m\u1ed9t l\u00fac. Ngo\u00e0i thu th\u1eadp n\u0103ng l\u01b0\u1ee3ng v\u00e0 l\u01b0u tr\u1eef (energy harvesting and storage), c\u00e1c ch\u1ee7 \u0111\u1ec1 kh\u00e1c bao g\u1ed3m Printed electronic<\/span><\/a><\/strong>, wearable technology (thi\u1ebft b\u1ecb \u0111eo), 3-D printing (in 3D), supercapacitors (si\u00eau t\u1ee5 \u0111i\u1ec7n), Internet of Things v\u00e0 graphene \u0111\u1ec1u \u0111\u01b0\u1ee3c \u0111\u01b0a ra th\u1ea3o lu\u1eadn. C\u00e1c l\u0129nh v\u1ef1c n\u00e0y d\u01b0\u1eddng nh\u01b0 kh\u00e1c nhau nh\u01b0ng c\u00f3 s\u1ef1 li\u00ean k\u1ebft ch\u1eb7t ch\u1ebd; theo CEO IDTechEx<\/strong> Raghu Das ch\u1ec9 ra, c\u00e1c thi\u1ebft b\u1ecb \u0111eo (wearable devices) \u0111ang \u0111i\u1ec1u khi\u1ec3n vi\u1ec7c ph\u00e1t tri\u1ec3n m\u1ea1nh m\u1ebd c\u00e1c nghi\u00ean c\u1ee9u c\u00f4ng ngh\u1ec7 thu th\u1eadp n\u0103ng l\u01b0\u1ee3ng ph\u1ee5c v\u1ee5 cho thi\u1ebft b\u1ecb n\u00e0y. Trong su\u1ed1t c\u00e1c phi\u00ean h\u1ecdp c\u1ee7a h\u1ed9i ngh\u1ecb, c\u00e1c m\u1ed1i li\u00ean k\u1ebft kh\u00e1c gi\u1eefa c\u00e1c l\u0129nh v\u1ef1c \u0111\u01b0\u1ee3c \u0111\u01b0a ra nh\u01b0: Si\u00eau t\u1ee5 ph\u1ee5c v\u1ee5 r\u1ea5t hi\u1ec7u qu\u1ea3 \u0111\u1ec3 l\u01b0u tr\u1eef v\u00e0 gi\u1ea3i ph\u00f3ng n\u0103ng l\u01b0\u1ee3ng thu th\u1eadp \u0111\u01b0\u1ee3c, v\u00e0 c\u00f4ng ngh\u1ec7 in 3D \u0111\u00f3ng m\u1ed9t vai tr\u00f2 l\u1edbn trong vi\u1ec7c t\u1ea1o ra c\u00e1c m\u1eabu g\u1ed1c cho c\u00e1c m\u1eb7t h\u00e0ng s\u1ea3n xu\u1ea5t, c\u00f3 th\u1ec3 xem v\u00e0 \u0111i\u1ec1u ch\u1ec9nh t\u1eeb khi m\u1edbi ph\u00e1t th\u1ea3o gi\u00fap vi\u1ec7c ph\u00e1t tri\u1ec3n c\u00e1c s\u1ea3n ph\u1ea9m nhanh trong th\u1eddi gian ng\u1eafn v\u00e0 \u00edt t\u1ed1n th\u1eddi gian.<\/span><\/p>

Theo c\u00e1c nh\u00e0 ph\u00e2n t\u00edch IDTechEx, ng\u00e0nh c\u00f4ng nghi\u1ec7p thu th\u1eadp n\u0103ng l\u01b0\u1ee3ng d\u1ef1 t\u00ednh s\u1ebd t\u0103ng \u0111\u1ebfn 2,6 t\u1ec9 USD \u0111\u1ebfn n\u0103m 2024. C\u00e1c ch\u01b0\u01a1ng tr\u00ecnh nghi\u00ean c\u1ee9u thu th\u1eadp n\u0103ng l\u01b0\u1ee3ng \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng xung quanh ba ngu\u1ed3n n\u0103ng l\u01b0\u1ee3ng ch\u00ednh v\u00e0 c\u00e1c c\u00f4ng ngh\u1ec7 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 khai th\u00e1c ch\u00fang nh\u01b0: n\u0103ng l\u01b0\u1ee3ng c\u01a1 kh\u00ed, n\u0103ng l\u01b0\u1ee3ng nhi\u1ec7t, v\u00e0 c\u00e1c n\u0103ng l\u01b0\u1ee3ng s\u00f3ng \u0111i\u1ec7n t\u1eeb d\u01b0 th\u1eeba xung quanh ta.<\/span><\/p>

\"\"<\/span><\/p>

\u1ea2nh:<\/strong> Southeastern Railways<\/em><\/span><\/p>

\u00a0<\/p>

T\u1eadn d\u1ee5ng s\u1ef1 dao \u0111\u1ed9ng:<\/strong> \u0110\u01b0\u1ee3c trang b\u1ecb tr\u00ean m\u1ed9t chuy\u1ebfn t\u00e0u h\u1ecfa, thi\u1ebft b\u1ecb n\u00e0y s\u1eed d\u1ee5ng c\u00e1c rung \u0111\u1ed9ng c\u1ee7a c\u00e1c b\u00e1nh xe v\u00e0 khung t\u00e0u h\u1ecfa \u0111\u1ec3 t\u1ea1o ra dao \u0111\u1ed9ng trong cu\u1ed9n d\u00e2y c\u1ee7a nam ch\u00e2m, khi \u0111\u00f3 gi\u00fap t\u1ea1o ra d\u00f2ng \u0111i\u1ec7n cung c\u1ea5p cho c\u00e1c c\u1ea3m bi\u1ebfn.<\/span><\/p>

M\u1ed9t ph\u01b0\u01a1ng ti\u1ec7n c\u01a1 n\u0103ng (M\u00f4-\u0111un) thu th\u1eadp n\u0103ng l\u01b0\u1ee3ng \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1edfi c\u00e1c c\u00f4ng ty c\u1ee7a Anh Perpetuum. M\u00f4-\u0111un thu th\u1eadp n\u0103ng l\u01b0\u1ee3ng t\u1eeb s\u1ef1 rung \u0111\u1ed9ng c\u1ee7a b\u00e1nh xe, toa xe: Nh\u1eefng rung \u0111\u1ed9ng \u0111\u00f3 \u0111\u00e3 l\u00e0m dao \u0111\u1ed9ng nam ch\u00e2m trong m\u1ed9t cu\u1ed9n d\u00e2y c\u1ed1 \u0111\u1ecbnh, gi\u00fap bi\u1ebfn thi\u00ean th\u00e0nh d\u00f2ng \u0111i\u1ec7n cung c\u1ea5p n\u0103ng l\u01b0\u1ee3ng cho c\u1ea3m bi\u1ebfn theo d\u00f5i nhi\u1ec7t \u0111\u1ed9 c\u1ee7a v\u00f2ng bi b\u00e1nh xe. \u0110\u01b0\u1eddng s\u1eaft \u0110\u00f4ng Nam (Southeastern Railways<\/span><\/a><\/strong>), c\u00f3 tr\u1ee5 s\u1edf t\u1ea1i Anh, \u0111\u00e3 l\u1eafp \u0111\u1eb7t Perpetuum tr\u00ean t\u1ea5t c\u1ea3 148 h\u1ec7 th\u1ed1ng c\u1ee7a \u0111\u01b0\u1eddng s\u1eaft Electrostar, \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh v\u00e0 gi\u1ea3i quy\u1ebft c\u00e1c nh\u01b0\u1ee3c \u0111i\u1ec3m tr\u01b0\u1edbc khi \u0111em ra c\u00e1c \u1ee9ng d\u1ee5ng l\u1edbn h\u01a1n.<\/span><\/p>

N\u0103ng l\u01b0\u1ee3ng t\u1eeb chuy\u1ec3n \u0111\u1ed9ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c thu th\u1eadp \u0111\u01b0\u1ee3c b\u1eb1ng c\u00e1c ph\u01b0\u01a1ng ti\u1ec7n kh\u00e1c nhau. M\u1ed9t lo\u1ea1t c\u00e1c v\u1eadt li\u1ec7u \u0111\u1eb7c tr\u01b0ng t\u00ednh \u0111i\u1ec7n \u00e1p: T\u00e1c \u0111\u1ed9ng m\u1ed9t l\u1ef1c v\u00e0o v\u1eadt li\u1ec7u \u0111\u1ec3 t\u1ea1o ra d\u00f2ng \u0111i\u1ec7n (v\u00e0 ng\u01b0\u1ee3c l\u1ea1i). V\u1eadt li\u1ec7u piezoelectric m\u1edbi \u0111ang \u0111\u01b0\u1ee3c t\u1ea1o ra trong th\u1eddi gian g\u1ea7n \u0111\u00e2y. V\u00ed d\u1ee5, m\u1ed9t sinh vi\u00ean t\u1ed1t nghi\u1ec7p tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc Illinois \u0111\u00e3 t\u1ea1o ra m\u1ed9t t\u1ea5m phim \u00e1p \u0111i\u1ec7n m\u1ecfng t\u01b0\u01a1ng th\u00edch sinh h\u1ecdc<\/strong><\/span><\/a> c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u1ea5y m\u1ed9t c\u00e1ch an to\u00e0n trong m\u00f4 s\u1ed1ng. M\u1ed9t thi\u1ebft b\u1ecb \u0111a l\u1edbp k\u1ebft h\u1ee3p v\u1edbi c\u00e1c t\u1ea5m phim piezoelectric \u0111\u01b0\u1ee3c g\u1eafn tr\u1ef1c ti\u1ebfp tr\u00ean b\u1ec1 m\u1eb7t c\u1ee7a tr\u00e1i tim con ng\u01b0\u1eddi c\u00f3 th\u1ec3 cung c\u1ea5p n\u0103ng l\u01b0\u1ee3ng nh\u01b0 m\u1ed9t m\u00e1y tr\u1ee3 tim. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 lo\u1ea1i b\u1ecf c\u00e1c nguy c\u01a1 \u0111\u1ed1i v\u1edbi b\u1ec7nh nh\u00e2n khi ph\u1ea3i ph\u1eabu thu\u1eadt thay th\u1ebf m\u00e1y tr\u1ee3 tim trong kho\u1ea3ng 5 \u0111\u1ebfn 10 n\u0103m, khi pin c\u1ee7a m\u00e1y tr\u1ee3 tim xu\u1ed1ng th\u1ea5p. Piezoelectric c\u0169ng c\u00f3 th\u1ec3 l\u00e0m vi\u1ec7c cho c\u00e1c \u1ee9ng d\u1ee5ng quy m\u00f4 l\u1edbn h\u01a1n. Trong th\u1eddi gian di\u1ec5n ra th\u1ebf v\u1eadn h\u1ed9i m\u00f9a h\u00e8 2012, t\u1ea1i London, m\u1ed9t ph\u1ea7n n\u0103ng l\u01b0\u1ee3ng d\u00f9ng \u0111\u1ec3 ph\u00e1t s\u00e1ng c\u00e1c tr\u1ea1m \u0111\u00e8n \u0111\u01b0\u1eddng \u0111i b\u1ed9 d\u01b0\u1edbi l\u00f2ng \u0111\u1ea5t \u0111\u00e3 \u0111\u01b0\u1ee3c thu th\u1eadp t\u1eeb b\u01b0\u1edbc ch\u00e2n c\u1ee7a h\u00e0nh kh\u00e1ch \u0111i tr\u00ean g\u1ea1ch. IDTechEx \u01b0\u1edbc t\u00ednh r\u1eb1ng th\u1ecb tr\u01b0\u1eddng piezoelectric tr\u00ean to\u00e0n th\u1ebf gi\u1edbi l\u00e0 kho\u1ea3ng 35 tri\u1ec7u USD trong n\u0103m 2014, t\u0103ng g\u1ea7n g\u1ea5p \u0111\u00f4i quy m\u00f4 th\u1ecb tr\u01b0\u1eddng so v\u1edbi n\u0103m 2013.<\/span><\/p>

C\u00e1c nh\u00e0 ph\u00e2n t\u00edch IDTechEx \u0111\u00e3 t\u0103ng \u0111\u00e1nh gi\u00e1 quy m\u00f4 c\u1ee7a th\u1ecb tr\u01b0\u1eddng h\u1ec7 th\u1ed1ng nhi\u1ec7t \u0111i\u1ec7n, c\u00f3 th\u1ec3 chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng nhi\u1ec7t kh\u00f4ng mong mu\u1ed1n tr\u1edf th\u00e0nh \u0111i\u1ec7n. Trong khi c\u00e1c h\u1ec7 th\u1ed1ng nhi\u1ec7t \u0111i\u1ec7n xung quanh ta \u0111\u00e3 t\u1ed3n t\u1ea1i trong nhi\u1ec1u th\u1eadp k\u1ef7, c\u00e1c thi\u1ebft b\u1ecb nhi\u1ec7t \u0111i\u1ec7n m\u1edbi c\u00f3 th\u1ec3 l\u00e0m vi\u1ec7c v\u1edbi s\u1ef1 kh\u00e1c bi\u1ec7t nhi\u1ec7t \u0111\u1ed9 nh\u1ecf h\u01a1n, t\u0103ng s\u1ed1 l\u01b0\u1ee3ng nh\u1eefng n\u01a1i c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng h\u1ec7 th\u1ed1ng n\u00e0y. T\u1ea1i h\u1ed9i ngh\u1ecb, c\u00e1c nh\u00e0 ph\u00e2n t\u00edch d\u1ef1 b\u00e1o r\u1eb1ng th\u1ecb tr\u01b0\u1eddng nhi\u1ec7t \u0111i\u1ec7n th\u1ebf h\u1ec7 m\u1edbi s\u1ebd t\u0103ng g\u1ea5p \u0111\u00f4i t\u1eeb 2014-2016, \u0111\u1ea1t g\u1ea7n 95 tri\u1ec7u USD.<\/span><\/p>

\u1ee8ng d\u1ee5ng trong t\u1ef1 \u0111\u1ed9ng l\u00e0 m\u1ee5c ti\u00eau l\u1edbn nh\u1ea5t, b\u1ec7n c\u1ea1nh \u0111\u00f3 c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p c\u00f3 nhi\u1ec1u kh\u1ea3 n\u0103ng \u0111\u1ec3 th\u00fac \u0111\u1ea9y t\u0103ng tr\u01b0\u1edfng r\u1ea5t m\u1ea1nh. C\u1ea3m bi\u1ebfn kh\u00f4ng d\u00e2y ch\u1ea1y b\u1eb1ng nhi\u1ec7t d\u01b0 th\u1eeba trong c\u00e1c d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t c\u00f3 th\u1ec3 gi\u1ea3m chi ph\u00ed l\u1eafp \u0111\u1eb7t v\u00e0 b\u1ea3o tr\u00ec b\u1eb1ng c\u00e1ch lo\u1ea1i b\u1ecf ngu\u1ed3n cung c\u1ea5p v\u00e0 truy\u1ec1n d\u1eef li\u1ec7u c\u00f3 d\u00e2y cho m\u1ed7i v\u1ecb tr\u00ed c\u1ea3m bi\u1ebfn \u0111\u1eb7t.<\/span><\/p>

C\u00f3 l\u1ebd ph\u01b0\u01a1ng ph\u00e1p k\u1ef3 di\u1ec7u nh\u1ea5t c\u1ee7a thu th\u1eadp n\u0103ng l\u01b0\u1ee3ng l\u00e0 t\u1ea1o ra c\u00e1c b\u1ea3n v\u1ebd \u0111\u1ec3 thu th\u1eadp \u0111i\u1ec7n t\u1eeb tr\u01b0\u1eddng d\u01b0 th\u1eeba t\u1ed3n t\u1ea1i xung quanh<\/strong>. \u0110\u00e2y kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t \u00fd t\u01b0\u1edfng m\u1edbi: c\u00e1c \u0103n-ten thu s\u00f3ng radio \u0111\u00e3 t\u1ed3n t\u1ea1i kh\u00e1 ph\u1ed5 bi\u1ebfn trong kho\u1ea3ng th\u1eddi gian v\u1eeba qua, c\u00f9ng v\u1edbi c\u00e1c th\u1ebb RFID v\u00e0 c\u00e1c t\u1ebf b\u00e0o quang \u0111i\u1ec7n l\u00e0 kh\u00e1 ph\u1ed5 bi\u1ebfn hi\u1ec7n nay. Kh\u00e1i ni\u1ec7m n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ti\u1ebfp t\u1ee5c ph\u00e1t tri\u1ec3n. C\u00f3 th\u1ec3 k\u00e9o n\u0103ng l\u01b0\u1ee3ng t\u1eeb c\u00e1c t\u1ea7n s\u1ed1 v\u00f4 tuy\u1ebfn kh\u00e1c nhau v\u00e0 thu ch\u00fang l\u1ea1i trong to\u00e0n th\u1eddi gian. Hi\u1ec7p h\u1ed9i nghi\u00ean c\u1ee9u d\u1ec7t may T\u00e2y Ban Nha Aitex<\/span><\/a><\/strong>, ph\u1ed1i h\u1ee3p v\u1edbi c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u kh\u00e1c, \u0111\u00e3 t\u1ea1o ra lo\u1ea1i v\u1ea3i c\u00f3 ch\u1ee9a \u0103ng-ten nh\u1ecf, c\u00e1c \u0103ng-ten \u0111\u01b0\u1ee3c d\u1ec7t tr\u1ef1c ti\u1ebfp l\u00ean v\u1ea3i. C\u00f4ng ngh\u1ec7 n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n \u0111\u1ec3 qu\u1ea7n \u00e1o c\u1ee7a ch\u00fang ta c\u00f3 th\u1ec3 b\u1eaft \u0111\u1ee7 n\u0103ng l\u01b0\u1ee3ng cho c\u00e1c b\u1ed9 c\u1ea3m bi\u1ebfn sinh tr\u1eafc h\u1ecdc v\u00e0 c\u00e1c thi\u1ebft b\u1ecb \u0111eo kh\u00e1c.<\/span><\/p>

H\u1ed9i ngh\u1ecb IDTechEx l\u00e0 m\u1ed9t v\u00ed d\u1ee5 tuy\u1ec7t v\u1eddi v\u1ec1 m\u1ed9t s\u1ef1 ki\u1ec7n n\u0103ng l\u01b0\u1ee3ng l\u1edbn v\u1edbi t\u1ed5ng th\u1ec3 c\u00e1c b\u1ed9 ph\u1eadn \u0111\u01b0\u1ee3c \u0111\u01b0a ra th\u1ea3o lu\u1eadn. C\u00f3 m\u1ed9t s\u1ef1 h\u00e0o h\u1ee9ng v\u00e0 nhi\u1ec7t t\u00ecnh gi\u1eefa nh\u1eefng ng\u01b0\u1eddi tham gia, \u0111\u00f3 l\u00e0 nh\u1eefng g\u00ec c\u00f2n thi\u1ebfu t\u1ea1i nhi\u1ec1u s\u1ef1 ki\u1ec7n c\u00f4ng ngh\u1ec7 trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y. S\u1ef1 ph\u1ea5n kh\u00edch \u0111\u1ec3 t\u1ea1o ra th\u1ecb tr\u01b0\u1eddng n\u0103ng l\u01b0\u1ee3ng m\u1edbi, t\u1ea5t c\u1ea3 s\u1ebd t\u0103ng tr\u01b0\u1edfng nhanh ch\u00f3ng, g\u1ee3i nh\u1edb v\u1ec1 nh\u1eefng ng\u00e0y \u0111\u1ea7u ti\u00ean kh\u1edfi \u0111\u1ea7u c\u1ee7a th\u1ecb tr\u01b0\u1eddng m\u00e1y t\u00ednh c\u00e1 nh\u00e2n, ch\u00fang ta s\u1ebd ch\u1ee9ng ki\u1ebfn c\u00e1c s\u1ea3n ph\u1ea9m tuy\u1ec7t v\u1eddi s\u1ebd ra m\u1eaft trong th\u1eddi gian t\u1edbi. N\u0103ng l\u01b0\u1ee3ng thu th\u1eadp \u0111\u01b0\u1ee3c l\u00e0 s\u1ebd \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c thay \u0111\u1ed5i c\u00e1ch ch\u00fang ta t\u01b0\u01a1ng t\u00e1c v\u1edbi c\u00e1c v\u1eadt d\u1ee5ng h\u00e0ng ng\u00e0y, d\u1eef li\u1ec7u c\u1ee7a ch\u00fang ta, m\u1ed9t s\u1ed1 th\u00e0nh ph\u1ea7n kh\u00e1c, v\u00e0 th\u1eadm ch\u00ed c\u1ea3 c\u01a1 th\u1ec3 c\u1ee7a c\u00e1c ch\u00fang ta.<\/span><\/p>

(*) T\u1eeb ng\u1eef \u0111\u1eb7c bi\u1ec7t tham kh\u1ea3o wiki Piezoelectric<\/span><\/a> <\/strong><\/span><\/p>

Theo spectrum.ieee.org<\/span><\/a><\/strong><\/em><\/span><\/p>