{"id":15673,"date":"2026-01-06T18:45:34","date_gmt":"2026-01-06T10:45:34","guid":{"rendered":"http:\/\/www.erun-tech.com\/?post_type=dt_portfolio&p=15673"},"modified":"2026-01-06T18:45:34","modified_gmt":"2026-01-06T10:45:34","slug":"wanyongbiaodeshiyongshiwuzhinan","status":"publish","type":"dt_portfolio","link":"http:\/\/www.erun-tech.com\/vi\/project\/wanyongbiaodeshiyongshiwuzhinan","title":{"rendered":"H\u01b0\u1edbng d\u1eabn th\u1ef1c h\u00e0nh s\u1eed d\u1ee5ng \u0111\u1ed3ng h\u1ed3 v\u1ea1n n\u0103ng"},"content":{"rendered":"
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H\u01b0\u1edbng d\u1eabn th\u1ef1c h\u00e0nh s\u1eed d\u1ee5ng \u0111\u1ed3ng h\u1ed3 v\u1ea1n n\u0103ng<\/h1>\n
C\u01a1 b\u1ea3n v\u1ec1 \u0111\u1ed3ng h\u1ed3 \u0111o \u00b7 So s\u00e1nh gi\u1eefa \u0111\u1ed3ng h\u1ed3 kim v\u00e0 \u0111\u1ed3ng h\u1ed3 s\u1ed1<\/div>\n<\/div>\n

M\u00e1y \u0111o \u0111a n\u0103ng l\u00e0 m\u1ed9t lo\u1ea1i thi\u1ebft b\u1ecb \u0111o \u0111i\u1ec7n \u0111a ch\u1ee9c n\u0103ng, \u0111a d\u1ea3i \u0111o, ti\u1ec7n l\u1ee3i khi mang theo. Hi\u1ec7n nay, hai lo\u1ea1i m\u00e1y \u0111o \u0111a n\u0103ng ph\u1ed5 bi\u1ebfn nh\u1ea5t l\u00e0 m\u00e1y \u0111o \u0111a n\u0103ng kim (m\u00e1y \u0111o kim) v\u00e0 m\u00e1y \u0111o \u0111a n\u0103ng s\u1ed1 (m\u00e1y \u0111o s\u1ed1). Trong \u0111\u00f3, m\u00e1y \u0111o kim c\u00f3 \u01b0u \u0111i\u1ec3m l\u00e0 \u0111\u1ecdc k\u1ebft qu\u1ea3 nhanh ch\u00f3ng v\u00e0 tr\u1ef1c quan, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i, nh\u01b0ng \u0111\u1ed9 ch\u00ednh x\u00e1c \u0111o l\u01b0\u1eddng t\u01b0\u01a1ng \u0111\u1ed1i th\u1ea5p. Ng\u01b0\u1ee3c l\u1ea1i, m\u00e1y \u0111o s\u1ed1 c\u00f3 nhi\u1ec1u ch\u1ee9c n\u0103ng v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c cao, nh\u01b0ng vi\u1ec7c hi\u1ec3n th\u1ecb k\u1ebft qu\u1ea3 ch\u1eadm v\u00e0 kh\u00f4ng \u1ed5n \u0111\u1ecbnh. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c v\u00ed d\u1ee5 minh h\u1ecda v\u1ec1 ch\u1ee9c n\u0103ng, c\u1ea5u tr\u00fac, c\u00e1ch s\u1eed d\u1ee5ng v\u00e0 c\u00e1c l\u01b0u \u00fd khi s\u1eed d\u1ee5ng \u0111\u1ed3ng h\u1ed3 v\u1ea1n n\u0103ng.<\/p>\n

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1. \u0110\u1ed3ng h\u1ed3 v\u1ea1n n\u0103ng kim (v\u00ed d\u1ee5: MF-47)<\/h2>\n
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(1) Ch\u1ee9c n\u0103ng c\u1ee7a \u0111\u1ed3ng h\u1ed3 v\u1ea1n n\u0103ng kim<\/h3>\n

M\u00e1y \u0111o \u0111a n\u0103ng kim c\u00f3 th\u1ec3 \u0111o c\u00e1c th\u00f4ng s\u1ed1 ch\u00ednh nh\u01b0 \u0111i\u1ec7n \u00e1p xoay chi\u1ec1u, \u0111i\u1ec7n \u00e1p m\u1ed9t chi\u1ec1u, d\u00f2ng \u0111i\u1ec7n m\u1ed9t chi\u1ec1u v\u00e0 \u0111i\u1ec7n tr\u1edf m\u1ed9t chi\u1ec1u; m\u1ed9t s\u1ed1 lo\u1ea1i c\u00f2n c\u00f3 th\u1ec3 \u0111o h\u1ec7 s\u1ed1 khu\u1ebfch \u0111\u1ea1i c\u1ee7a transistor, dung l\u01b0\u1ee3ng c\u1ee7a t\u1ee5 \u0111i\u1ec7n, \u0111\u1ed9 t\u1ef1 c\u1ea3m c\u1ee7a cu\u1ed9n d\u00e2y, v.v.<\/p>\n

(2) C\u1ea5u tr\u00fac c\u1ee7a \u0111\u1ed3ng h\u1ed3 v\u1ea1n n\u0103ng kim<\/h3>\n

M\u00e1y \u0111o \u0111a n\u0103ng kim bao g\u1ed3m m\u1eb7t \u0111\u1ed3ng h\u1ed3 (\u0111\u1ea7u \u0111\u1ed3ng h\u1ed3), m\u1ea1ch \u0111o, c\u00f4ng t\u1eafc chuy\u1ec3n \u0111\u1ed5i (n\u00fam \u0111i\u1ec1u ch\u1ec9nh) v.v., nh\u01b0 h\u00ecnh 13-1.<\/p>\n

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\"H\u00ecnh

H\u00ecnh 13-1 S\u01a1 \u0111\u1ed3 c\u1ea5u tr\u00fac c\u1ee7a \u0111\u1ed3ng h\u1ed3 v\u1ea1n n\u0103ng kim<\/p><\/div>\n<\/div>\n

1. Ph\u00e2n t\u00edch chi ti\u1ebft m\u1eb7t s\u1ed1<\/strong><\/p>\n

M\u1eb7t s\u1ed1: G\u1ed3m \u0111\u1ed3ng h\u1ed3 \u0111o d\u00f2ng \u0111i\u1ec7n t\u1eeb \u0111i\u1ec7n t\u1eeb c\u00f3 \u0111\u1ed9 nh\u1ea1y cao v\u00e0 m\u1eb7t s\u1ed1 chia v\u1ea1ch. \u0110\u1ed3ng h\u1ed3 \u0111o d\u00f2ng \u0111i\u1ec7n t\u1eeb \u0111i\u1ec7n t\u1eeb bao g\u1ed3m nam ch\u00e2m v\u0129nh c\u1eedu, cu\u1ed9n d\u00e2y, l\u00f2 xo v\u00e0 kim \u0111\u1ed3ng h\u1ed3, d\u00f2ng \u0111i\u1ec7n \u0111\u1ea7y v\u1ea1ch th\u01b0\u1eddng n\u1eb1m trong kho\u1ea3ng 40~100 \u03bcA. L\u00f2 xo c\u00f3 ch\u1ee9c n\u0103ng d\u1eabn d\u00f2ng \u0111i\u1ec7n v\u00e0 l\u00e0m l\u00f2 xo ph\u1ea3n l\u1ef1c. Khi d\u00f2ng \u0111i\u1ec7n \u0111i qua l\u00f2 xo v\u00e0o cu\u1ed9n d\u00e2y, d\u01b0\u1edbi t\u00e1c d\u1ee5ng c\u1ee7a t\u1eeb tr\u01b0\u1eddng, cu\u1ed9n d\u00e2y t\u1ea1o ra m\u00f4-men xo\u1eafn, v\u01b0\u1ee3t qua l\u1ef1c c\u1ea3n c\u1ee7a l\u00f2 xo, k\u00e9o kim \u0111\u1ed3ng h\u1ed3 quay. Khi m\u00f4-men \u0111i\u1ec7n t\u1eeb v\u00e0 l\u1ef1c ph\u1ea3n \u1ee9ng c\u1ee7a l\u00f2 xo c\u00e2n b\u1eb1ng, kim \u0111\u1ed3ng h\u1ed3 ng\u1eebng quay.<\/p>\n

Gi\u1ea3i th\u00edch b\u1ed1n thang \u0111o tr\u00ean m\u1eb7t \u0111\u1ed3ng h\u1ed3 (t\u1eeb tr\u00ean xu\u1ed1ng d\u01b0\u1edbi):<\/strong><\/p>\n

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  • \ud83d\udd39 (1) \u0110\u01b0\u1eddng chia \u0111\u1ed9 \u0111\u1ea7u ti\u00ean l\u00e0 thang \u0111o \u0111i\u1ec7n tr\u1edf;<\/li>\n
  • \ud83d\udd39 (2) V\u1ea1ch chia \u0111\u1ed9 th\u1ee9 hai \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111o \u0111i\u1ec7n \u00e1p xoay chi\u1ec1u, \u0111i\u1ec7n \u00e1p m\u1ed9t chi\u1ec1u v\u00e0 d\u00f2ng \u0111i\u1ec7n m\u1ed9t chi\u1ec1u;<\/li>\n
  • \ud83d\udd39 (3) V\u1ea1ch chia \u0111\u1ed9 th\u1ee9 ba \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111o \u0111i\u1ec7n \u00e1p d\u01b0\u1edbi 10V;<\/li>\n
  • \ud83d\udd39 (4) V\u1ea1ch chia \u0111\u1ed9 th\u1ee9 t\u01b0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111o \u0111\u1ed9 l\u1ee3i c\u1ee7a b\u1ed9 khu\u1ebfch \u0111\u1ea1i.<\/li>\n<\/ul>\n
    \u0110\u1eb7c bi\u1ec7t l\u01b0u \u00fd:<\/strong>Gi\u00e1 tr\u1ecb \u0111\u01b0\u1ee3c ghi tr\u00ean v\u1ea1ch chia \u0111\u1ed9 c\u1ee7a ch\u1ebf \u0111\u1ed9 \u0111o \u0111i\u1ec7n tr\u1edf ng\u01b0\u1ee3c v\u1edbi c\u00e1c v\u1ea1ch chia \u0111\u1ed9 kh\u00e1c. C\u00e1c v\u1ea1ch chia \u0111\u1ed9 kh\u00e1c \u0111\u01b0\u1ee3c \u0111\u1ecdc t\u1eeb tr\u00e1i sang ph\u1ea3i, kim ch\u1ec9 th\u1ecb \u0111\u1ee9ng y\u00ean \u1edf v\u1ecb tr\u00ed 0 b\u00ean tr\u00e1i, trong khi v\u1ea1ch chia \u0111\u1ed9 c\u1ee7a ch\u1ebf \u0111\u1ed9 \u0111o \u0111i\u1ec7n tr\u1edf b\u1eaft \u0111\u1ea7u t\u1eeb b\u00ean ph\u1ea3i v\u00e0 c\u00e1c v\u1ea1ch chia \u0111\u1ed9 kh\u00f4ng \u0111\u1ec1u nhau.<\/div>\n<\/div>\n
    \n
    2. M\u1ea1ch \u0111o l\u01b0\u1eddng<\/strong>
    \nM\u1ea1ch \u0111o \u0111\u01b0\u1ee3c t\u1ea1o th\u00e0nh t\u1eeb c\u00e1c linh ki\u1ec7n nh\u01b0 \u0111i\u1ec7n tr\u1edf, \u0111i\u1ed1t, v.v., \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i theo chu\u1ed7i v\u00e0 song song. M\u1ea1ch \u0111o chuy\u1ec3n \u0111\u1ed5i c\u00e1c \u0111\u1ea1i l\u01b0\u1ee3ng \u0111i\u1ec7n kh\u00e1c nhau th\u00e0nh d\u00f2ng \u0111i\u1ec7n, l\u00e0 th\u00e0nh ph\u1ea7n trung t\u00e2m c\u1ee7a \u0111\u1ed3ng h\u1ed3 v\u1ea1n n\u0103ng.<\/div>\n
    3. C\u00f4ng t\u1eafc chuy\u1ec3n \u0111\u1ed5i<\/strong>
    \nH\u1ea7u h\u1ebft c\u00e1c \u0111\u1ed3ng h\u1ed3 v\u1ea1n n\u0103ng s\u1eed d\u1ee5ng m\u1ed9t c\u00f4ng t\u1eafc chuy\u1ec3n \u0111\u1ed5i \u0111a v\u1ecb tr\u00ed k\u1ebft h\u1ee3p v\u1edbi c\u01a1 c\u1ea5u \u0111o l\u01b0\u1eddng \u0111\u1ec3 th\u1ef1c hi\u1ec7n chuy\u1ec3n \u0111\u1ed5i \u0111a ch\u1ee9c n\u0103ng v\u00e0 \u0111a d\u1ea3i \u0111o. M\u1ed9t s\u1ed1 \u0111\u1ed3ng h\u1ed3 v\u1ea1n n\u0103ng s\u1eed d\u1ee5ng hai c\u00f4ng t\u1eafc chuy\u1ec3n \u0111\u1ed5i.<\/div>\n<\/div>\n

    (3) C\u00e1ch s\u1eed d\u1ee5ng \u0111\u1ed3ng h\u1ed3 v\u1ea1n n\u0103ng kim<\/h3>\n
    \n

    (1) C\u00e1ch c\u1eafm b\u00fat \u0111o:<\/strong>C\u1eafm \u0111\u1ea7u d\u00f2 m\u00e0u \u0111\u1ecf v\u00e0o l\u1ed7 c\u1eafm \u201c+\u201d, \u0111\u1ea7u d\u00f2 m\u00e0u \u0111en v\u00e0o l\u1ed7 c\u1eafm \u201c-\u201d.<\/p>\n

    (2) X\u1eed l\u00fd \u0111i\u1ec1u ch\u1ec9nh v\u1ec1 0:<\/strong><\/p>\n

    \u2460 \u0110i\u1ec1u ch\u1ec9nh c\u01a1 h\u1ecdc:<\/strong>\u0110\u1eb7t \u0111\u1ed3ng h\u1ed3 \u0111o n\u1eb1m ngang, \u0111i\u1ec1u ch\u1ec9nh n\u00fam hi\u1ec7u ch\u1ec9nh b\u00ean d\u01b0\u1edbi m\u1eb7t \u0111\u1ed3ng h\u1ed3 \u0111\u1ec3 kim ch\u1ec9 v\u00e0o v\u1ecb tr\u00ed 0 c\u1ee7a \u0111i\u1ec7n \u00e1p\/d\u00f2ng \u0111i\u1ec7n.
    \n\u2461 \u0110i\u1ec1u ch\u1ec9nh \u0111i\u1ec3m 0 c\u1ee7a ohm:<\/strong>Tr\u01b0\u1edbc khi \u0111o \u0111i\u1ec7n tr\u1edf, n\u1ed1i ng\u1eafn \u0111\u1ea7u d\u00f2 \u0111\u1ecf v\u00e0 \u0111en, \u0111i\u1ec1u ch\u1ec9nh n\u00fam \u0111i\u1ec1u ch\u1ec9nh \u0111i\u1ec7n tr\u1edf v\u1ec1 0.M\u1ed7i l\u1ea7n chuy\u1ec3n s\u1ed1 c\u1ea7n \u0111i\u1ec1u ch\u1ec9nh m\u1ed9t l\u1ea7n.<\/strong><\/p>\n

    (3) Ch\u1ecdn ch\u1ee9c n\u0103ng:<\/strong>Ch\u1ecdn ch\u1ebf \u0111\u1ed9 ch\u1ee9c n\u0103ng t\u01b0\u01a1ng \u1ee9ng theo \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u01b0\u1ee3c \u0111o.<\/p>\n

    (4) Nguy\u00ean t\u1eafc l\u1ef1a ch\u1ecdn ph\u1ea1m vi \u0111o:<\/strong>Ph\u1ea1m vi \u0111o ph\u1ea3i l\u1edbn h\u01a1n gi\u00e1 tr\u1ecb c\u1ea7n \u0111o v\u00e0 ph\u1ea3i g\u1ea7n nh\u1ea5t v\u1edbi gi\u00e1 tr\u1ecb c\u1ea7n \u0111o. Th\u00f4ng th\u01b0\u1eddng, kim \u0111\u1ed3ng h\u1ed3 ch\u1ec9 v\u00e0o 1\/2\uff5e2\/3<\/strong> V\u1ecb tr\u00ed. N\u1ebfu gi\u00e1 tr\u1ecb kh\u00f4ng x\u00e1c \u0111\u1ecbnh, n\u00ean s\u1eed d\u1ee5ng tr\u01b0\u1edbcD\u1ea3i \u0111o t\u1ed1i \u0111a<\/strong>\u0110o.<\/p>\n<\/div>\n

    (4) Nh\u1eefng \u0111i\u1ec1u c\u1ea7n l\u01b0u \u00fd khi s\u1eed d\u1ee5ng \u0111\u1ed3ng h\u1ed3 v\u1ea1n n\u0103ng kim<\/h3>\n
    \n
    (1) Kh\u00f4ng \u0111\u01b0\u1ee3c thay \u0111\u1ed5i ph\u1ea1m vi \u0111o trong qu\u00e1 tr\u00ecnh \u0111o.<\/div>\n
    (2) Sau khi ho\u00e0n t\u1ea5t, chuy\u1ec3n c\u00f4ng t\u1eafc sang v\u1ecb tr\u00ed AC t\u1ed1i \u0111a ho\u1eb7c \u201cOFF\u201d.<\/div>\n
    (3) N\u1ebfu kh\u00f4ng s\u1eed d\u1ee5ng trong th\u1eddi gian d\u00e0i, n\u00ean th\u00e1o pin b\u00ean trong ra.<\/div>\n
    (4) Khi \u0111o \u0111i\u1ec7n \u00e1p, kh\u00f4ng n\u00ean c\u1ea7m hai \u0111\u1ea7u d\u00f2 b\u1eb1ng hai tay.<\/div>\n
    (5) Ch\u00fa \u00fd c\u1ef1c t\u00ednh c\u1ee7a d\u00f2ng \u0111i\u1ec7n m\u1ed9t chi\u1ec1u (c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p ch\u1ea1m \u0111i\u1ec3m \u0111\u1ec3 ki\u1ec3m tra h\u01b0\u1edbng).<\/div>\n
    (6) \u0110o \u0111i\u1ec7n \u00e1p song song, \u0111o d\u00f2ng \u0111i\u1ec7n n\u1ed1i ti\u1ebfp.<\/div>\n<\/div>\n<\/div>\n<\/section>\n<\/div>\n
    \n
    \n

    II. \u0110\u1ed3ng h\u1ed3 v\u1ea1n n\u0103ng k\u1ef9 thu\u1eadt s\u1ed1 (v\u00ed d\u1ee5: lo\u1ea1i DT-830)<\/h2>\n
    \n

    M\u00e1y \u0111o \u0111a n\u0103ng k\u1ef9 thu\u1eadt s\u1ed1 c\u00f3 c\u00e1c \u01b0u \u0111i\u1ec3m nh\u01b0 \u0111\u1ed9 ch\u00ednh x\u00e1c cao, hi\u1ec3n th\u1ecb tr\u1ef1c quan, ch\u1ee9c n\u0103ng \u0111\u1ea7y \u0111\u1ee7, \u0111\u1ed9 tin c\u1eady cao, nh\u1ecf g\u1ecdn, nh\u1eb9 v\u00e0 d\u1ec5 s\u1eed d\u1ee5ng.<\/p>\n

    \n
    \n

    (1) C\u1ea5u tr\u00fac v\u00e0 ch\u1ee9c n\u0103ng<\/h3>\n

    M\u00e1y \u0111o \u0111a n\u0103ng k\u1ef9 thu\u1eadt s\u1ed1 DT-830 nh\u01b0 h\u00ecnh 13-2, bao g\u1ed3m m\u00e0n h\u00ecnh LCD, c\u00f4ng t\u1eafc ngu\u1ed3n, c\u00f4ng t\u1eafc ch\u1ecdn d\u1ea3i \u0111o, c\u1ed5ng c\u1eafm que \u0111o, v.v.<\/p>\n

    \n

    \u25cf M\u00e0n h\u00ecnh:<\/strong>Gi\u00e1 tr\u1ecb t\u1ed1i \u0111a 1999. T\u1ef1 \u0111\u1ed9ng hi\u1ec3n th\u1ecb c\u1ef1c t\u00ednh (c\u1ef1c \u00e2m hi\u1ec3n th\u1ecb \u201c-\u201d). Khi v\u01b0\u1ee3t qu\u00e1 ph\u1ea1m vi, hi\u1ec3n th\u1ecb \u201c1\u201d ho\u1eb7c \u201c-1\u201d.<\/p>\n

    \u25cf C\u00f4ng t\u1eafc ngu\u1ed3n:<\/strong>Sau khi \u0111o xong, h\u00e3y \u0111\u1eb7t v\u00e0o v\u1ecb tr\u00ed \u201cOFF\u201d. S\u1eed d\u1ee5ng pin 9V x\u1ebfp ch\u1ed3ng.<\/p>\n

    \u25cf Ti\u00eau chu\u1ea9n c\u1eafm:<\/strong>C\u1eafm \u0111\u1ea7u d\u00f2 \u0111en v\u00e0o \u201cCOM\u201d, c\u1eafm \u0111\u1ea7u d\u00f2 \u0111\u1ecf v\u00e0o \u201cV\u00b7\u03a9\u201d, \u201cmA\u201d ho\u1eb7c \u201c10 A\u201d t\u00f9y theo lo\u1ea1i.<\/p>\n<\/div>\n<\/div>\n

    \n
    \"H\u00ecnh

    H\u00ecnh 13-2 \u0110\u1ed3ng h\u1ed3 v\u1ea1n n\u0103ng k\u1ef9 thu\u1eadt s\u1ed1 DT-830<\/p><\/div>\n

    \n<\/div>\n<\/div>\n

    (2) C\u00e1ch s\u1eed d\u1ee5ng \u0111\u1ed3ng h\u1ed3 v\u1ea1n n\u0103ng k\u1ef9 thu\u1eadt s\u1ed1<\/h3>\n\n\n\n\n\n\n\n\n
    \u0110\u1ed1i t\u01b0\u1ee3ng \u0111o l\u01b0\u1eddng<\/th>\n\u0110i\u1ec3m ch\u00ednh c\u1ee7a thao t\u00e1c<\/th>\n<\/tr>\n
    \u0110i\u1ec7n \u00e1p xoay chi\u1ec1u v\u00e0 m\u1ed9t chi\u1ec1u<\/td>\nC\u1eafm V\u00b7\u03a9 v\u00e0 COM, sau \u0111\u00f3 k\u1ebft n\u1ed1i m\u1ea1ch. \u0110\u1ed1i v\u1edbi d\u00f2ng \u0111i\u1ec7n m\u1ed9t chi\u1ec1u, c\u1ea7n ch\u00fa \u00fd \u0111\u1ebfn c\u1ef1c \u0111i\u1ec7n \u00e1p cao, \u0111i\u1ec1u ch\u1ec9nh d\u1ea3i \u0111o khi v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n.<\/td>\n<\/tr>\n
    \u0110i\u1ec7n xoay chi\u1ec1u v\u00e0 \u0111i\u1ec7n m\u1ed9t chi\u1ec1u<\/td>\nC\u1eafm mA (>200mA k\u1ebft n\u1ed1i 10A) v\u1edbi COM, n\u1ed1i ti\u1ebfp m\u1ea1ch. Ch\u00fa \u00fd c\u1ef1c t\u00ednh.<\/td>\n<\/tr>\n
    \u0110i\u1ec7n tr\u1edf<\/td>\nKh\u00f4ng c\u1ea7n \u0111i\u1ec1u ch\u1ec9nh \u0111i\u1ec3m 0. C\u1eafm V\u00b7\u03a9 v\u00e0 COM, \u0111o ch\u00e9o (kh\u00f4ng \u0111\u01b0\u1ee3c c\u00f3 \u0111i\u1ec7n). D\u1ea3i \u0111o 200M\u03a9 c\u1ea7n tr\u1eeb gi\u00e1 tr\u1ecb l\u1ec7ch.<\/td>\n<\/tr>\n
    Diode\/On-off<\/td>\n\u0110i\u1ec7n \u00e1p s\u1ee5t gi\u1ea3m khi d\u1eabn \u0111i\u1ec7n thu\u1eadn (silicon 500-800mV), hi\u1ec3n th\u1ecb \u201c1\u201d khi d\u1eabn \u0111i\u1ec7n ng\u01b0\u1ee3c. \u0110i\u1ec7n tr\u1edf <30\u03a9 ph\u00e1t ra ti\u1ebfng b\u00edp.<\/td>\n<\/tr>\n
    Transistor hFE<\/td>\n\u0110\u1eb7t d\u1ea3i \u0111o hFE. C\u1eafm ch\u00e2n v\u00e0o l\u1ed7 c\u1eafm EBC t\u01b0\u01a1ng \u1ee9ng theo lo\u1ea1i NPN\/PNP.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    (3) Nh\u1eefng \u0111i\u1ec1u c\u1ea7n l\u01b0u \u00fd khi s\u1eed d\u1ee5ng \u0111\u1ed3ng h\u1ed3 v\u1ea1n n\u0103ng k\u1ef9 thu\u1eadt s\u1ed1<\/h3>\n

    \u25cf C\u1ea3nh b\u00e1o pin: Khi hi\u1ec3n th\u1ecb \u201cLOBAT\u201d ho\u1eb7c \u201c\u2190\u201d, c\u1ea7n thay pin.
    \n\u25cf Y\u00eau c\u1ea7u v\u1ec1 m\u00f4i tr\u01b0\u1eddng: 0~40\u2103, \u0111\u1ed9 \u1ea9m d\u01b0\u1edbi 80%. Nghi\u00eam c\u1ea5m \u00e1nh n\u1eafng tr\u1ef1c ti\u1ebfp ho\u1eb7c nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 \u0111\u1ed9 \u1ea9m cao.<\/p>\n<\/div>\n<\/section>\n

    \n

    3. S\u1eed d\u1ee5ng \u0111\u1ed3ng h\u1ed3 v\u1ea1n n\u0103ng \u0111\u1ec3 \u0111o \u0111i\u1ec7n \u00e1p v\u00e0 d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u v\u00e0 m\u1ed9t chi\u1ec1u m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c.<\/h2>\n
    \n
    \n
    \n

    (1) \u0110o \u0111i\u1ec7n \u00e1p<\/h3>\n

    1. M\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng:<\/strong>X\u00e1c \u0111\u1ecbnh tr\u1ea1ng th\u00e1i ngu\u1ed3n \u0111i\u1ec7n, c\u1ef1c t\u00ednh; t\u00ecm ki\u1ebfm s\u1ef1 c\u1ed1 \u0111\u01b0\u1eddng d\u00e2y.<\/p>\n

    2. Ph\u01b0\u01a1ng ph\u00e1p:<\/strong>\u2460 Ch\u1ecdn s\u1ed1. \u2461 \u0110o song song<\/strong>\u2462 D\u00f2ng \u0111i\u1ec7n m\u1ed9t chi\u1ec1u: c\u1ef1c d\u01b0\u01a1ng m\u00e0u \u0111\u1ecf, c\u1ef1c \u00e2m m\u00e0u \u0111en (c\u00f3 th\u1ec3 ki\u1ec3m tra b\u1eb1ng c\u00e1ch ch\u1ea1m v\u00e0o). \u2463 Ch\u1ecdn d\u1ea3i \u0111o ph\u00f9 h\u1ee3p (380V ch\u1ecdn d\u1ea3i 500V, 220V ch\u1ecdn d\u1ea3i 250V).<\/p>\n<\/div>\n

    \n

    (2) \u0110o d\u00f2ng \u0111i\u1ec7n<\/h3>\n

    1. M\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng:<\/strong>Ki\u1ec3m tra ho\u1ea1t \u0111\u1ed9ng c\u1ee7a thi\u1ebft b\u1ecb; kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1.<\/p>\n

    2. Ph\u01b0\u01a1ng ph\u00e1p:<\/strong>\u2460 C\u1eafm \u0111en v\u00e0o COM, c\u1eafm \u0111\u1ecf v\u00e0o mA ho\u1eb7c 10A. \u2461 M\u1ea1ch n\u1ed1i ti\u1ebfp<\/strong>\u2462 Sau khi \u0111o, h\u00e3y nh\u1edb c\u1eafm b\u00fat \u0111\u1ecf tr\u1edf l\u1ea1i l\u1ed7 c\u1eafm V\u00b7\u03a9.<\/p>\n<\/div>\n<\/div>\n

    (3) Nh\u1eefng \u0111i\u1ec1u c\u1ea7n l\u01b0u \u00fd khi s\u1eed d\u1ee5ng \u0111\u1ed3ng h\u1ed3 v\u1ea1n n\u0103ng \u0111\u1ec3 \u0111o \u0111i\u1ec7n \u00e1p v\u00e0 d\u00f2ng \u0111i\u1ec7n<\/h3>\n
    \n
      \n
    • (1) K\u1ebft n\u1ed1i topologie:<\/strong>\u0110o \u0111i\u1ec7n \u00e1p ph\u1ea3i song song, \u0111o d\u00f2ng \u0111i\u1ec7n ph\u1ea3i n\u1ed1i ti\u1ebfp, vi ph\u1ea1m s\u1ebd l\u00e0m h\u1ecfng \u0111\u1ed3ng h\u1ed3.<\/li>\n
    • (2) Ki\u1ec3m tra v\u1ecb tr\u00ed s\u1ed1:<\/strong>Nghi\u00eam c\u1ea5m s\u1eed d\u1ee5ng \u0111i\u1ec7n m\u1ed9t chi\u1ec1u \u0111\u1ec3 \u0111o \u0111i\u1ec7n xoay chi\u1ec1u ho\u1eb7c \u0111i\u1ec7n xoay chi\u1ec1u \u0111\u1ec3 \u0111o \u0111i\u1ec7n m\u1ed9t chi\u1ec1u.<\/li>\n
    • (3) \u01af\u1edbc t\u00ednh ph\u1ea1m vi \u0111o:<\/strong>Kh\u1edfi \u0111\u1ed9ng \u1edf t\u1ed1c \u0111\u1ed9 cao, gi\u1ea3m ph\u1ea1m vi \u0111\u1ec3 t\u0103ng \u0111\u1ed9 ch\u00ednh x\u00e1c.<\/li>\n
    • (4) \u0110\u1eb7t l\u1ea1i v\u1ecb tr\u00ed ban \u0111\u1ea7u:<\/strong>Sau khi ho\u00e0n th\u00e0nh vi\u1ec7c \u0111o, \u0111\u1ea7u d\u00f2 m\u00e0u \u0111\u1ecf ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u1eb7t tr\u1edf l\u1ea1i l\u1ed7 c\u1eafm \u201cV\u00b7\u03a9\u201d, c\u00f4ng t\u1eafc chuy\u1ec3n \u0111\u1ed5i \u0111\u01b0\u1ee3c \u0111\u1eb7t \u1edf v\u1ecb tr\u00ed cao \u00e1p xoay chi\u1ec1u.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/section>\n