{"id":2727,"date":"2022-07-23T10:04:04","date_gmt":"2022-07-23T03:04:04","guid":{"rendered":"https:\/\/hieuchuan3d.com\/?p=2727"},"modified":"2022-07-23T10:04:04","modified_gmt":"2022-07-23T03:04:04","slug":"he-truc-pcs-cmm-nikon-camio-8-may-do-cmm-nikon-altera-755-3d-vina","status":"publish","type":"post","link":"https:\/\/backup.hieuchuan3d.com\/ja\/he-truc-pcs-cmm-nikon-camio-8-may-do-cmm-nikon-altera-755-3d-vina\/","title":{"rendered":"(Ti\u1ebfng Vi\u1ec7t) H\u1ec6 TR\u1ee4C PCS CMM NIKON CAMIO 8 – M\u00e1y \u0111o CMM Nikon Altera 755 – 3D Vina"},"content":{"rendered":"

\u7533\u3057\u8a33\u3042\u308a\u307e\u305b\u3093\u3001\u3053\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u306f\u305f\u3060\u4eca\u3000\u30d9\u30c8\u30ca\u30e0\u8a9e<\/a>\u3000\u306e\u307f\u3067\u3059\u3002 For the sake of viewer convenience, the content is shown below in the alternative language. You may click the link to switch the active language.<\/p>

Ti\u1ebfp n\u1ed1i b\u00e0i vi\u1ebft v\u1ec1\u00a0th\u1ef1c h\u00e0nh d\u1ef1ng h\u1ec7 tr\u1ee5c t\u1ecda \u0111\u1ed9 c\u1ee7a v\u1eadt\u00a0(PCS \u2013 Part Coordinate System)<\/strong><\/span>. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd \u0111\u1ec1 c\u1eadp t\u1edbi c\u00e1ch d\u1ef1ng h\u1ec7 tr\u1ee5c PCS tr\u00ean m\u00e1y \u0111o CMM c\u1ee7a h\u00e3ng Nikon s\u1eed d\u1ee5ng ph\u1ea7n m\u1ec1m Camio 8<\/span><\/strong>.<\/p>\n

3D Vina<\/strong> <\/span>l\u1ef1a ch\u1ecdn vi\u1ebft b\u00e0i th\u1ef1c h\u00e0nh tr\u00ean m\u00e1y CMM Nikon tr\u01b0\u1edbc, v\u00ec m\u00e1y CMM Mitutoyo \u0111\u00e3 r\u1ea5t ph\u1ed5 bi\u1ebfn n\u00ean khi m\u1ecdi ng\u01b0\u1eddi \u0111\u00e3 hi\u1ec3u v\u1ec1 h\u1ec7 tr\u1ee5c t\u1ecda \u0111\u1ed9<\/strong><\/span>\u00a0th\u00ec c\u00f3 th\u1ec3 \u00e1p dung m\u1ed9t c\u00e1ch d\u1ec5 d\u00e0ng cho m\u00e1y CMM Mitutoyo. Ngo\u00e0i ra, hi\u1ec7n t\u1ea1i c\u00f3 m\u1ea5y b\u1ea1n trong c\u00f4ng ty \u0111ang ti\u1ebfp c\u1eadn v\u00e0 c\u00f3 nhu c\u1ea7u t\u00ecm hi\u1ec3u m\u00e1y CMM Nikon.<\/p>\n

N\u1ed9i dung b\u00e0i vi\u1ebft s\u1ebd \u0111i lu\u00f4n v\u00e0o c\u00e1c b\u01b0\u1edbc thao t\u00e1c d\u1ef1ng h\u1ec7 tr\u1ee5c PCS. V\u1edbi nh\u1eefng b\u1ea1n l\u1ea7n \u0111\u1ea7u l\u00e0m quen v\u1edbi m\u00e1y th\u00ec c\u00f3 th\u1ec3 \u0111\u1ecdc th\u00eam b\u00e0i gi\u1edbi thi\u1ec7u t\u1ed5ng quan v\u1ec1 CMM Nikon.<\/p>\n

\"\"<\/p>\n

M\u1ed8T S\u1ed0 L\u01afU \u00dd TR\u01af\u1edaC KHI TI\u1ebeN H\u00c0NH \u0110O<\/strong><\/p>\n

\u0110\u1ec3 k\u1ebft qu\u1ea3 \u0111o ch\u00ednh x\u00e1c v\u00e0 an to\u00e0n cho thi\u1ebft b\u1ecb \u0111o<\/strong><\/span>, c\u1ea7n ph\u1ea3i th\u1ed1ng nh\u1ea5t \u0111\u01b0\u1ee3c ti\u00eau chu\u1ea9n \u0111o v\u00e0 ph\u01b0\u01a1ng ph\u00e1p \u0111o. Ch\u00fang ta c\u1ea7n \u0111\u1ea3m b\u1ea3o c\u00e1c y\u1ebfu t\u1ed1 sau tr\u01b0\u1edbc khi ti\u1ebfn h\u00e0nh \u0111o<\/p>\n

    \n
  1. Ki\u1ec3m tra m\u00e1y v\u00e0 thi\u1ebft b\u1ecb ph\u1ee5 tr\u1ee3 \u0111\u1ea1t chu\u1ea9n\n
      \n
    • M\u00e1y v\u1eadn h\u00e0nh trong \u0111i\u1ec1u ki\u1ec7n chu\u1ea9n (Nhi\u1ec7t \u0111\u1ed9 20\u00baC\u00b12\u00baC; \u0111\u1ed9 \u1ea9m 55% ~ 65%; \u00e1p su\u1ea5t kh\u00ed, m\u00e1y s\u1ea5y kh\u00ed\u2026)<\/li>\n<\/ul>\n<\/li>\n
    • C\u00e1c g\u00f3c \u0111o v\u00e0 \u0111\u1ea7u \u0111o s\u1eed d\u1ee5ng trong qu\u00e1 tr\u00ecnh \u0111o ph\u1ea3i \u0111\u01b0\u1ee3c hi\u1ec7u chu\u1ea9n<\/li>\n
    • K\u00edch th\u01b0\u1edbc v\u1eadt \u0111o v\u00e0 g\u00e1 ph\u1ea3i n\u1eb1m trong kh\u00f4ng gian c\u1ee7a m\u00e1y \u0111o (theo k\u00edch th\u01b0\u1edbc c\u00e1c tr\u1ee5c m\u00e1y \u0111o)<\/li>\n
    • D\u1ee5ng c\u1ee5 g\u00e1 \u0111\u1ea1t chu\u1ea9n v\u00e0 c\u00f3 ph\u01b0\u01a1ng ph\u00e1p g\u00e1 \u0111\u1eb7t r\u00f5 r\u00e0ng.<\/li>\n
    • N\u00ean c\u0103n ch\u1ec9nh Jig g\u00e1 song song v\u1edbi c\u00e1c tr\u1ee5c c\u1ee7a m\u00e1y<\/li>\n
    • Ch\u1ec9 nh\u1eefng ng\u01b0\u1eddi \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u00e0o t\u1ea1o m\u1edbi \u0111\u01b0\u1ee3c v\u1eadn h\u00e0nh m\u00e1y (ho\u1eb7c ph\u1ea3i c\u00f3 s\u1ef1 gi\u00e1m s\u00e1t tr\u1ef1c ti\u1ebfp c\u1ee7a ng\u01b0\u1eddi c\u00f3 chuy\u00ean m\u00f4n)<\/li>\n
    • Tu\u00e2n th\u1ee7 c\u00e1c quy \u0111\u1ecbnh kh\u00e1c t\u1ea1i n\u01a1i l\u00e0m vi\u1ec7c.<\/li>\n
    • Trong qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh, khi x\u1ea3y ra s\u1ef1 c\u1ed1, c\u1ea7n gi\u1eef nguy\u00ean hi\u1ec7n tr\u1ea1ng v\u00e0 b\u00e1o c\u1ea5p tr\u00ean \u0111\u1ec3 xin h\u1ed7 tr\u1ee3 (kh\u00f4ng t\u1ef1 \u00fd x\u1eed l\u00fd l\u1ed7i khi ch\u01b0a \u0111\u01b0\u1ee3c \u0111\u00e0o t\u1ea1o)<\/li>\n<\/ol>\n

      T\u1ea0O CH\u01af\u01a0NG TR\u00ccNH \u0110O M\u1edaI<\/strong><\/p>\n

      T\u1ea1o m\u1ed9t ch\u01b0\u01a1ng tr\u00ecnh \u0111o m\u1edbi sau khi \u0111\u00e3 ki\u1ec3m tra c\u00e1c h\u1ea1ng m\u1ee5c \u1edf tr\u00ean.<\/p>\n

      \"\"<\/p>\n

      Sau khi ch\u1ecdn ch\u01b0\u01a1ng tr\u00ecnh, trong c\u1eeda s\u1ed5 Model ta s\u1ebd th\u1ea5y m\u00e1y m\u00f4 ph\u1ecfng kh\u00f4ng gian h\u1ec7 tr\u1ee5c t\u1ecda \u0111\u1ed9 c\u1ee7a m\u00e1y \u0111o CMM v\u00e0 h\u1ec7 tr\u1ee5c t\u1ecda \u0111\u1ed9 c\u1ee7a m\u00e1y MCS<\/p>\n

      Trong h\u00ecnh b\u00ean d\u01b0\u1edbi, khi \u0111\u1eb7t l\u1ec7nh cho m\u00e1y di chuy\u1ec3n v\u1ec1 v\u1ecb tr\u00ed \u201cHome Position\u201d (khi kh\u1edfi \u0111\u1ed9ng \u2013 m\u00e1y s\u1ebd t\u1ef1 ki\u1ec3m tra kh\u1ea3 n\u0103ng di chuy\u1ec3n c\u1ee7a c\u00e1c tr\u1ee5c v\u00e0 di chuy\u1ec3n v\u1ec1 v\u1ecb tr\u00ed \u201chome position\u201d.<\/p>\n

      Khi \u0111\u00f3, DRO hi\u1ec3n th\u1ecb t\u1ecda \u0111\u1ed9 X, Y, Z th\u1ec3 hi\u1ec7n t\u1ecda \u0111\u1ed9 \u0111\u1ea7u \u0111o t\u1ea1i v\u1ecb tr\u00ed Home s\u1ebd l\u00e0 0,0,0. \u0110\u00e2y l\u00e0 v\u1ecb tr\u00ed g\u1ed1c c\u1ee7a h\u1ec7 tr\u1ee5c t\u1ecda \u0111\u1ed9 MCS \u0111\u01b0\u1ee3c m\u00e1y \u0111\u1ecbnh ngh\u0129a. (Tham kh\u1ea3o b\u00e0i vi\u1ebft\u00a0d\u1ef1ng h\u1ec7 tr\u1ee5c t\u1ecda \u0111\u1ed9<\/strong><\/span>\u00a0\u0111\u1ec3 t\u00ecm hi\u1ec3u v\u1ec1 MCS v\u00e0 PCS)<\/p>\n

      \"\"<\/p>\n

      X\u00c1C \u0110\u1ecaNH H\u1ec6 TR\u1ee4C PCS<\/strong><\/p>\n

      Ch\u00fang ta quay tr\u1edf l\u1ea1i v\u00ed d\u1ee5 trong b\u00e0i vi\u1ebft tr\u01b0\u1edbc. Ch\u00fang ta quan s\u00e1t t\u01b0\u01a1ng quan gi\u1eefa h\u1ec7 tr\u1ee5c MCS v\u00e0 PCS, sau \u0111\u00f3 s\u1ebd th\u1ef1c hi\u1ec7n c\u00e1c b\u01b0\u1edbc d\u1ef1ng h\u1ec7 tr\u1ee5c PCS tr\u00ean m\u00e1y CMM Nikon s\u1eed dung ph\u1ea7n m\u1ec1m Camio 8.<\/p>\n

      \"\"<\/p>\n

      Trong v\u00ed d\u1ee5 n\u00e0y, t\u1eeb b\u1ea3n v\u1ebd 2D ch\u00fang ta x\u00e1c \u0111\u1ecbnh h\u1ec7 tr\u1ee5c PCS d\u1ef1a tr\u00ean\u00a03 y\u1ebfu t\u1ed1<\/strong>\u00a0ch\u00ednh<\/p>\n

        \n
      • M\u1eb7t ph\u1eb3ng tham chi\u1ebfu (m\u1eb7t A)<\/li>\n
      • Tr\u1ee5c tham chi\u1ebfu n\u1eb1m tr\u00ean m\u1eb7t ph\u1eb3ng tham chi\u1ebfu A (l\u00e0 tr\u1ee5c t\u1ea1o b\u1edfi \u0111\u01b0\u1eddng th\u1eb3ng qua t\u00e2m tr\u1ee5 C1 chi\u1ebfu tr\u00ean m\u1eb7t A v\u00e0 tr\u1ee5 C2 chi\u1ebfu tr\u00ean m\u1eb7t A)<\/li>\n
      • G\u1ed1c c\u1ee7a tr\u1ee5 tham chi\u1ebfu (t\u00e2m tr\u1ee5 C3 chi\u1ebfu tr\u00ean m\u1eb7t A)<\/li>\n<\/ul>\n

        D\u1ef0NG H\u1ec6 TR\u1ee4C PCS<\/strong><\/p>\n

        X\u00e1c \u0111\u1ecbnh m\u1eb7t ph\u1eb3ng tham chi\u1ebfu:<\/strong><\/p>\n

        \u0110o m\u1eb7t ph\u1eb3ng A trong h\u1ec7 tham chi\u1ebfu MCS (t\u1ea1m g\u1ecdi l\u00e0\u00a0h\u1ec7 tr\u1ee5c 1<\/strong>). \u0110\u1ec3 CMM \u0111\u1ecbnh ngh\u0129a m\u1eb7t ph\u1eb3ng, c\u1ea7n x\u00e1c \u0111\u1ecbnh t\u1ecda \u0111\u1ed9 c\u1ee7a\u00a0\u00edt nh\u1ea5t 3 \u0111i\u1ec3m\u00a0tr\u00ean m\u1eb7t ph\u1eb3ng c\u1ea7n \u0111o.<\/p>\n

        Tr\u00ecnh t\u1ef1 th\u1ef1c hi\u1ec7n tr\u00ean m\u00e1y CMM Nikon: Ch\u1ecdn\u00a0Tactile<\/strong>\u00a0\u2192 \u0110i\u1ec1u ki\u1ec3n Joystick \u0111o 4 \u0111i\u1ec3m tr\u00ean m\u1eb7t A \u2192 \u0110i\u1ec1u ch\u1ec9nh vector \u0111o \u2192 Ch\u1ecdn\u00a0Apply<\/strong><\/p>\n

        \"\"<\/p>\n

        Trong ph\u1ea7n n\u00e0y, c\u1ea7n l\u01b0u \u00fd b\u01b0\u1edbc 5. V\u1ec1 vector ch\u1ec9 ph\u01b0\u01a1ng \u0111o. Trong qu\u00e1 tr\u00ecnh \u0111o b\u1eb1ng Joystick, khi b\u1ea1n \u0111i\u1ec1u ki\u1ec3n m\u00e1y \u0111o theo ph\u01b0\u01a1ng Z (v\u00ed d\u1ee5 \u0111o th\u1eb3ng xu\u1ed1ng b\u00e0n \u0111\u00e1). Nh\u01b0ng trong c\u1eeda s\u1ecf program cho th\u1ea5y vector ch\u1ec9 ph\u01b0\u01a1ng \u0111o hi\u1ebfm khi tr\u00f9ng v\u1edbi Z<\/p>\n

        Tr\u1ee5c Z trong MCS h\u01b0\u1edbng th\u1eb3ng l\u00ean tr\u00ean v\u00e0 vu\u00f4ng g\u00f3c v\u1edbi m\u1eb7t ph\u1eb3ng b\u00e0n \u0111\u00e1, khi \u0111o th\u1eb3ng xu\u1ed1ng b\u00e0n \u0111\u00e1 (ng\u01b0\u1ee3c h\u01b0\u1edbng v\u1edbi Z+). Vector \u0111o c\u1ee7a m\u00e1y Nikon l\u00e0 (0,0,1), c\u1ee7a m\u00e1y Mitutoyo l\u00e0 (0,0,-1). Trong m\u00e1y CMM, lu\u00f4n l\u1ea5y vector \u0111\u01a1n v\u1ecb l\u00e0m vector \u0111o. (search google \u0111\u1ec3 bi\u1ebft vector \u0111\u01a1n v\u1ecb l\u00e0 g\u00ec \u2013 \u0111\u00e2y l\u00e0 ki\u1ebfn th\u1ee9c \u1edf trung h\u1ecdc ph\u1ed5 th\u00f4ng)<\/p>\n

        Trong v\u00ed d\u1ee5 n\u00e0y, ch\u1ecdn vector \u0111o l\u00e0 +Z (0,0,1) v\u00ec \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1eb1ng m\u00e1y \u0111o CMM Nikon.<\/p>\n

        *\u2014\u2014\u2014*<\/p>\n

        Ti\u1ebfp theo, c\u1ea7n g\u00e1n m\u1eb7t ph\u1eb3ng v\u1eeba \u0111o l\u00e0m m\u1eb7t tham chi\u1ebfu (set alignment and the origin for this plane).<\/p>\n

        Khi \u0111\u1eb7t m\u1eb7t A l\u00e0m m\u1eb7t tham chi\u1ebfu. C\u00f3 ngh\u0129a l\u00e0 \u0111\u1eb7t m\u1eb7t A l\u00e0m m\u1eb7t XOY, t\u1ea5t c\u1ea3 c\u00e1c \u0111i\u1ec3m n\u1eb1m tr\u00ean m\u1eb7t A c\u00f3 gi\u00e1 tr\u1ecb Z=0.<\/p>\n

        \"\"<\/p>\n

        Sau b\u01b0\u1edbc n\u00e0y, m\u00e1y \u0111\u00e3 t\u1ea1o ra\u00a0h\u1ec7 tr\u1ee5c 2<\/strong>. Th\u1ecfa m\u00e3n m\u1eb7t A l\u00e0 m\u1eb7t XOY trong h\u1ec7 tr\u1ee5c n\u00e0y (t\u1ea5t c\u1ea3 c\u00e1c \u0111i\u1ec3m tr\u00ean m\u1eb7t A c\u00f3 t\u1ecda \u0111\u1ed9 Z = 0)<\/p>\n

        Trong ph\u1ea7n n\u00e0y, c\u1ea7n l\u01b0u \u00fd b\u01b0\u1edbc 3-2. Vi\u1ec7c ch\u1ecdn vector tr\u1ee5c ch\u00ednh s\u1ebd quy\u1ebft \u0111\u1ecbnh m\u1eb7t ph\u1eb3ng A l\u00e0 m\u1eb7t ph\u1eb3ng n\u00e0o trong h\u1ec7 tr\u1ee5c 2. V\u00e0 chi\u1ec1u c\u1ee7a tr\u1ee5c t\u1ecda \u0111\u1ed9 t\u01b0\u01a1ng\u00a0\u1ee9ng trong h\u1ec7 tr\u1ee5c 2.<\/p>\n

        B\u1ea1n c\u1ea7n t\u01b0 duy \u0111\u00fang \u0111\u1ec3 c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n \u0111\u01b0\u1ee3c ch\u00ednh x\u00e1c h\u1ec7 tr\u1ee5c t\u1ecda \u0111\u1ed9 PCS. (nhi\u1ec1u ng\u01b0\u1eddi d\u1ef1ng ng\u01b0\u1ee3c h\u1ec7 tr\u1ee5c v\u00e0 kh\u00f4ng th\u1ec3 \u0111o \u0111\u01b0\u1ee3c khi b\u1ea3n v\u1ebd ch\u1ec9 \u0111\u1ecbnh \u0111o c\u00e1c \u0111i\u1ec3m theo t\u1ecda \u0111\u1ed9 PCS trong b\u1ea3n v\u1ebd)<\/p>\n

        B\u1ea1n c\u00f3 th\u1ec3 h\u00ecnh dung\u00a0h\u1ec7 tr\u1ee5c 2<\/strong>\u00a0thu \u0111\u01b0\u1ee3c nh\u01b0 b\u00ean d\u01b0\u1edbi. Ch\u00fang ta x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c XOY l\u00e0 m\u1eb7t A. V\u00e0 ch\u01b0a quan t\u00e2m v\u1ed9i t\u1edbi h\u01b0\u1edbng v\u00e0 g\u1ed1c c\u1ee7a tr\u1ee5c X, Y. Ch\u00fang s\u1ebd \u0111\u01b0\u1ee3c gi\u1ea3i quy\u1ebft trong c\u00e1c b\u01b0\u1edbc ti\u1ebfp theo.<\/p>\n

        \"\"<\/p>\n

        X\u00e1c \u0111\u1ecbnh tr\u1ee5c tham chi\u1ebfu (trong m\u1eb7t ph\u1eb3ng tham chi\u1ebfu v\u1eeba thi\u1ebft l\u1eadp)<\/strong><\/p>\n

        Tr\u1ee5c tham chi\u1ebfu tr\u00ean m\u1eb7t tham chi\u1ebfu s\u1ebd l\u00e0 1 \u0111\u01b0\u1eddng th\u1eb3ng tr\u00ean m\u1eb7t ph\u1eb3ng tham chi\u1ebfu. \u0110\u1ec3 x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1eddng th\u1eb3ng (line). Ch\u00fang ta c\u1ea7n x\u00e1c \u0111\u1ecbnh t\u1ecda \u0111\u1ed9 c\u1ee7a \u00edt nh\u1ea5t 2 \u0111i\u1ec3m tr\u00ean line \u0111\u00f3.<\/p>\n

        Th\u00f4ng th\u01b0\u1eddng ch\u00fang ta c\u00f3 th\u1ec3 \u0111o tr\u1ef1c ti\u1ebfp t\u1ecda \u0111\u1ed9 c\u1ee7a 2 \u0111i\u1ec3m \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh line. Tuy nhi\u00ean v\u1edbi v\u00ed d\u1ee5 trong b\u00e0i vi\u1ebft n\u00e0y, ch\u00fang \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh gi\u00e1n ti\u1ebfp qua t\u00e2m c\u1ee7a 2 tr\u1ee5 C1 v\u00e0 C2. Hay n\u00f3i c\u00e1ch kh\u00e1c, ch\u00fang l\u00e0 t\u00e2m c\u1ee7a 2 \u0111\u01b0\u1eddng tr\u00f2n x\u00e1c \u0111\u1ecbnh tr\u00ean 2 tr\u1ee5 C1 v\u00e0 C2<\/p>\n

        Do t\u1ecda \u0111\u1ed9 \u0111i\u1ec3m d\u00f9ng \u0111\u1ec3 d\u1ef1ng line \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh d\u00e1n ti\u1ebfp qua t\u00e2m \u0111\u01b0\u1eddng tr\u00f2n tr\u00ean tr\u1ee5 C1 v\u00e0 C2. N\u00ean c\u00f3 m\u1ed9t v\u1ea5n \u0111\u1ec1 n\u1ea3y sinh \u0111\u00f3 l\u00e0 h\u00ecnh chi\u1ebfu c\u1ee7a \u0111\u01b0\u1eddng tr\u00f2n tr\u00ean tr\u1ee5 C1 v\u00e0 C2 s\u1ebd kh\u00e1c bi\u1ec7t khi chi\u1ebfu l\u00ean m\u1eb7t ph\u1eb3ng XY c\u1ee7a h\u1ec7 tr\u1ee5c MCS so v\u1edbi khi chi\u1ebfu l\u00ean m\u1eb7t A.<\/p>\n

        Khi chi\u1ebfu l\u00ean m\u1eb7t XY c\u1ee7a h\u1ec7 tr\u1ee5c MCS, k\u1ebft qu\u1ea3 thu \u0111\u01b0\u1ee3c s\u1ebd l\u00e0 m\u1ed9t Elip. (Tr\u1eeb khi \u0111o \u1edf m\u1eb7t ph\u1eb3ng song song v\u1edbi A). Khi chi\u1ebfu l\u00ean m\u1eb7t A th\u00ec s\u1ebd lu\u00f4n thu \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 l\u00e0 m\u1ed9t \u0111\u01b0\u1eddng tr\u00f2n (ngay c\u1ea3 khi b\u1eaft \u0111i\u1ec3m \u1edf c\u00e1c cao \u0111\u1ed9 kh\u00e1c nhau)<\/p>\n

        \"\"<\/p>\n

        L\u1ed7i ph\u1ed5 bi\u1ebfn v\u1edbi nhi\u1ec1u b\u1ea1n khi thi\u1ebft l\u1eadp h\u1ec7 tr\u1ee5c t\u1ecda \u0111\u1ed9 l\u00e0 \u0111o m\u1ed9t lo\u1ea1t c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng trong h\u1ec7 tr\u1ee5c MCS sau \u0111\u00f3 m\u1edbi thi\u1ebft l\u1eadp c\u0103n ch\u1ec9nh h\u1ec7 tr\u1ee5c.<\/p>\n

          \n
        • \u0110o m\u1eb7t ph\u1eb3ng A trong h\u1ec7 tr\u1ee5c MCS<\/li>\n
        • \u0110o\u00a0\u0111\u01b0\u1eddng tr\u00f2n<\/strong>\u00a0C1, C2, C3 trong h\u1ec7 tr\u1ee5c MCS (trong khi th\u1ef1c t\u1ebf ch\u00fang l\u00e0 elip, nh\u01b0ng \u00e9p ki\u1ec3u \u0111\u1ed1i t\u01b0\u1ee3ng \u0111o l\u00e0 \u0111\u01b0\u1eddng tr\u00f2n n\u00ean m\u00e1y s\u1ebd t\u00ednh to\u00e1n \u0111\u1ec3 \u0111\u1ecbnh ngh\u0129a \u0111\u01b0\u1eddng tr\u00f2n trong h\u1ec7 tr\u1ee5c MCS) \u2192 T\u1ecda \u0111\u1ed9 t\u00e2m \u0111\u01b0\u1eddng tr\u00f2n kh\u00f4ng ch\u00ednh x\u00e1c.<\/li>\n
        • T\u1ea1o line qua t\u00e2m C1, C2 \u0111\u00e3 x\u00e1c \u0111\u1ecbnh \u1edf tr\u00ean.<\/li>\n
        • D\u1ef1ng h\u1ec7 tr\u1ee5c PCS* b\u1eb1ng m\u1ed9t t\u1ed5 h\u1ee3p nh\u00f3m c\u00e2u l\u1ec7nh (\u0111\u1ecbnh ngh\u0129a m\u1eb7t tham chi\u1ebfu, tr\u1ee5c tham chi\u1ebfu, g\u1ed1c t\u1ecda \u0111\u1ed9). Tuy nhi\u00ean \u1edf \u0111\u00e2y t\u1ed3n t\u1ea1i m\u1ed9t s\u1ed1 v\u1ea5n \u0111\u1ec1 li\u00ean quan \u0111\u1ebfn b\u1ea3n ch\u1ea5t d\u1ef1ng h\u00ecnh.\n
            \n
          • Th\u1ef1c ch\u1ea5t vi\u1ec7c d\u1ef1ng PCS* qua m\u1ed9t nh\u00f3m t\u1ed5 h\u1ee3p l\u1ec7nh th\u00ec m\u00e1y CMM v\u1eabn s\u1ebd thi\u1ebft l\u1eadp l\u1ea7n l\u01b0\u1ee3t t\u1eebng c\u00e2u l\u1ec7nh \u0111\u1ec3 d\u1ef1ng h\u1ec7 tr\u1ee5c qua vi\u1ec7c \u0111\u1ecbnh ngh\u0129a t\u1eebng y\u1ebfu t\u1ed1 ch\u00ednh\n
              \n
            • \u0110\u1eb7t m\u1eb7t A l\u00e0 m\u1eb7t ph\u1eb3ng tham chi\u1ebfu XY \u2192 t\u1ea1o h\u1ec7 tr\u1ee5c 2* t\u1eeb h\u1ec7 tr\u1ee5c MCS<\/li>\n
            • Chi\u1ebfu t\u1ecda \u0111\u1ed9 t\u00e2m C1 v\u00e0 C2 l\u00ean m\u1eb7t A v\u00e0 t\u1ea1o line qua 2 t\u00e2m chi\u1ebfu n\u00e0y. Sau \u0111\u00f3 \u0111\u1eb7t line n\u00e0y l\u00e0m tr\u1ee5c X \u2192 T\u1ea1o h\u1ec7 tr\u1ee5c 3*\n
                \n
              • C1 v\u00e0 C2 kh\u00f4ng ch\u00ednh x\u00e1c v\u00ec \u0111\u01b0\u1ee3c \u0111o trong MCS \u2192 Khi chi\u1ebfu l\u00ean XY (m\u1eb7t A) trong h\u1ec7 tr\u1ee5c 2 c\u0169ng s\u1ebd kh\u00f4ng ch\u00ednh x\u00e1c \u2192 Tr\u1ee5c X c\u1ee7a h\u1ec7 tr\u1ee5c 3 kh\u00f4ng ch\u00ednh x\u00e1c.<\/li>\n<\/ul>\n<\/li>\n
              • Chi\u1ebfu toa \u0111\u1ed9 t\u00e2m C3 l\u00ean m\u1eb7t A v\u00e0 \u0111\u1eb7t t\u1ecda \u0111\u1ed9 X c\u1ee7a \u0111i\u1ec3m v\u1eeba chi\u1ebfu = 0 (tr\u1ee5c Y qua \u0111i\u1ec3m n\u00e0y) \u2192 T\u1ea1o h\u1ec7 tr\u1ee5c 4* (L\u00e0 h\u1ec7 tr\u1ee5c PCS*)\n
                  \n
                • T\u01b0\u01a1ng t\u1ef1 nh\u01b0 tr\u00ean, hi\u1ec3n nhi\u00ean t\u1ecda \u0111\u1ed9 C3 trong MCS c\u0169ng ko ch\u00ednh x\u00e1c n\u00ean h\u1ec7 tr\u1ee5c 4* kh\u00f4ng ho\u00e0n to\u00e0n ch\u00ednh x\u00e1c l\u00e0 h\u1ec7 tr\u1ee5c PCS. C\u00f3 th\u1ec3 s\u1ef1 kh\u00e1c bi\u1ec7t l\u00e0 r\u1ea5t nh\u1ecf, nh\u01b0ng \u0111o th\u1ef1c s\u1ef1 kh\u00f4ng ph\u1ea3i h\u1ec7 tr\u1ee5c PCS.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

                  \"\"<\/p>\n

                  \u0110\u00e2y l\u00e0 l\u00fd do t\u00f4i lu\u00f4n khuy\u1ebfn c\u00e1o c\u00e1c b\u1ea1n c\u1ea7n l\u00e0m \u0111\u00fang theo tr\u00ecnh t\u1ef1 c\u00e1c b\u01b0\u1edbc thi\u1ebft l\u1eadp h\u1ec7 tr\u1ee5c t\u1ecda \u0111\u1ed9.<\/p>\n

                  Quay tr\u1edf l\u1ea1i v\u1edbi v\u00ed d\u1ee5 \u1edf tr\u00ean v\u1ec1 b\u01b0\u1edbc t\u1ea1o tr\u1ee5c tham chi\u1ebfu.<\/p>\n

                  \u0110o \u0111\u01b0\u1eddng tr\u00f2n C1, C2 v\u00e0 x\u00e1c \u0111\u1ecbnh h\u00ecnh chi\u1ebfu tr\u00ean m\u1eb7t ph\u1eb3ng A<\/strong><\/p>\n

                  \"\"<\/p>\n

                  Sau b\u01b0\u1edbc n\u00e0y, ch\u00fang ta d\u1ef1ng \u0111\u01b0\u1ee3c \u0111\u01b0\u1eddng tr\u00f2n C1 trong\u00a0h\u1ec7 tr\u1ee5c 2<\/strong>.<\/p>\n

                  T\u01b0\u01a1ng t\u1ef1 ta \u0111o \u0111\u01b0\u1ee3c \u0111\u01b0\u1eddng tr\u00f2n C2 trong\u00a0h\u1ec7 tr\u1ee5c 2<\/strong>.<\/p>\n

                  Tuy nhi\u00ean, theo \u0111\u00fang quy t\u1eafc 3 y\u1ebfu t\u1ed1 \u0111o h\u1ec7 tr\u1ee5c, ch\u00fang ta c\u1ea7n x\u00e1c \u0111\u1ecbnh tr\u1ee5c tham chi\u1ebfu tr\u00ean m\u1eb7t ph\u1eb3ng tham chi\u1ebfu (m\u1eb7t A). Trong khi C1 v\u00e0 C2 d\u1ef1ng \u0111\u01b0\u1ee3c \u0111ang kh\u00f4ng n\u1eb1m trong m\u1eb7t tham chi\u1ebfu (m\u1eb7t A). Do v\u1eady, tr\u01b0\u1edbc khi t\u1ea1o line, c\u1ea7n x\u00e1c \u0111\u1ecbnh t\u00e2m chi\u1ebfu c\u1ee7a c\u00e1c \u0111\u01b0\u1eddng tr\u00f2n n\u00e0y xu\u1ed1ng m\u1eb7t A.<\/p>\n

                  \"\"<\/p>\n

                  \u0110\u1ebfn \u0111\u00e2y ta d\u1ef1ng \u0111\u01b0\u1ee3c \u0111\u01b0\u1eddng tr\u00f2n C1\u2032 v\u00e0 C2\u2032 l\u00e0 h\u00ecnh chi\u1ebfu c\u1ee7a C1 v\u00e0 C2 tr\u00ean m\u1eb7t ph\u1eb3ng tham chi\u1ebfu A.<\/p>\n

                  Ti\u1ebfp theo, c\u1ea7n d\u1ef1ng tr\u1ee5c tham chi\u1ebfu (line) qua C1\u2032 v\u00e0 C2\u2032<\/p>\n

                  \"\"<\/p>\n

                  \u0110\u1ebfn \u0111\u00e2y, ch\u00fang ta \u0111\u00e3 d\u1ef1ng \u0111\u01b0\u1ee3c line qua t\u00e2m chi\u1ebfu C1, C2 tr\u00ean m\u1eb7t ph\u1eb3ng A.<\/p>\n

                  \u0110\u1eb7t line v\u1eeba t\u1ea1o l\u00e0 tr\u1ee5c tham chi\u1ebfu tr\u00ean m\u1eb7t ph\u1eb3ng tham chi\u1ebfu c\u1ee7a h\u1ec7 tr\u1ee5c 1.<\/strong><\/p>\n

                  \"\"<\/p>\n

                  Sau b\u01b0\u1edbc n\u00e0y, m\u00e1y \u0111\u00e3 t\u1ea1o ra\u00a0h\u1ec7 tr\u1ee5c 3<\/strong>. Th\u1ecfa m\u00e3n m\u1eb7t A v\u1eabn l\u00e0 m\u1eb7t XOY trong h\u1ec7 tr\u1ee5c n\u00e0y (t\u1ea5t c\u1ea3 c\u00e1c \u0111i\u1ec3m tr\u00ean m\u1eb7t A c\u00f3 t\u1ecda \u0111\u1ed9 Z = 0). Tr\u1ee5c\u00a0OX \u0111i qua t\u00e2m C1\u2032 v\u00e0 C2\u2032 (l\u00e0 h\u00ecnh chi\u1ebfu c\u1ee7a t\u00e2m C1, C2 tr\u00ean m\u1eb7t A \u2013 ch\u00ednh l\u00e0 m\u1eb7t XOY trong\u00a0h\u1ec7 tr\u1ee5c 2 v\u00e0 3<\/strong>; hay n\u00f3i c\u00e1ch kh\u00e1c, t\u1ea5t c\u1ea3 c\u00e1c \u0111i\u1ec3m tr\u00ean \u0111\u01b0\u1eddng th\u1eb3ng qua C1\u2032 v\u00e0 C2\u2032 s\u1ebd c\u00f3 t\u1ecda \u0111\u1ed9 Z=0, Y=0)<\/p>\n

                  B\u1ea1n c\u00f3 th\u1ec3 h\u00ecnh dung\u00a0h\u1ec7 tr\u1ee5c 3<\/strong>\u00a0thu \u0111\u01b0\u1ee3c s\u1ebd nh\u01b0 sau<\/p>\n

                  \"\"<\/p>\n

                  Ti\u1ebfp theo l\u00e0 b\u01b0\u1edbc x\u00e1c \u0111\u1ecbnh y\u1ebfu t\u1ed1 cu\u1ed1i c\u00f9ng<\/p>\n

                  X\u00e1c \u0111\u1ecbnh g\u1ed1c tham chi\u1ebfu<\/strong><\/p>\n

                  T\u01b0\u01a1ng t\u1ef1 nh\u01b0 tr\u00ean. C\u1ea7n \u0111o \u0111\u01b0\u1eddng tr\u00f2n C3 sau \u0111\u00f3 chi\u1ebfu l\u00ean m\u1eb7t A (XOY) \u0111\u1ec3 l\u1ea5y t\u00e2m chi\u1ebfu C3\u2032 v\u00e0 d\u1ef1ng tr\u1ee5c sao cho tr\u1ee5c Y \u0111i qua C3\u2032 (hay n\u00f3i c\u00e1ch kh\u00e1 l\u00e0 t\u1ecda \u0111\u1ed9 X c\u1ee7a C3\u2032 =0)<\/p>\n

                  \"\"<\/p>\n

                  V\u00e0\u00a0h\u1ec7 tr\u1ee5c 4<\/strong>\u00a0thu \u0111\u01b0\u1ee3c sau b\u01b0\u1edbc n\u00e0y s\u1ebd tr\u00f9ng v\u1edbi h\u1ec7 tr\u1ee5c PCS.<\/p>\n

                  \"\"<\/p>\n

                  L\u1edcI K\u1ebeT<\/strong><\/p>\n

                  \u0110\u1ec3 c\u00f3 th\u1ec3 x\u00e2y d\u1ef1ng \u0111\u01b0\u1ee3c ch\u00ednh x\u00e1c h\u1ec7 tr\u1ee5c PCS. Ch\u00fang ta c\u1ea7n hi\u1ec3u r\u00f5 v\u1ec1 b\u1ea3n ch\u1ea5t c\u00e1c ph\u00e9p r\u1eddi h\u1ec7 tr\u1ee5c t\u1ecda \u0111\u1ed9 (t\u1ecbnh ti\u1ebfn, xoay) qua \u0111\u00f3 x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c h\u1ec7 tr\u1ee5c thay \u0111\u1ed5i nh\u01b0 th\u1ebf n\u00e0o sau c\u00e1c b\u01b0\u1edbc d\u1ef1ng h\u00ecnh. V\u00e0 l\u1ef1a ch\u1ecdn \u0111\u01b0\u1ee3c \u0111\u1ed1i t\u01b0\u1ee3ng \u0111o ph\u00f9 h\u1ee3p (V\u00ed d\u1ee5 trong b\u00e0i n\u00e0y, s\u1ebd c\u00f3 s\u1ef1 nh\u1ea7m l\u1eabn gi\u1eefa Elip v\u00e0 \u0111\u01b0\u1eddng tr\u00f2n)<\/p>\n

                  B\u00ean c\u1ea1nh \u0111\u00f3, vi\u1ec7c tu\u00e2n th\u1ee7 tr\u00ecnh t\u1ef1 thi\u1ebft l\u1eadp l\u00e0 r\u1ea5t quan tr\u1ecdng. H\u1ec7 tr\u1ee5c t\u1ecda \u0111\u1ed9 thay \u0111\u1ed5i theo t\u1eebng b\u01b0\u1edbc r\u1eddi h\u00ecnh. Do v\u1eady c\u1ea7n ph\u1ea3i th\u1ef1c hi\u1ec7n \u0111\u00fang tr\u00ecnh t\u1ef1 \u0111\u1ec3 ki\u1ec3m so\u00e1t \u0111\u01b0\u1ee3c h\u1ec7 tr\u1ee5c, qua \u0111\u00f3 s\u1ebd ki\u1ec3m so\u00e1t \u0111\u01b0\u1ee3c vi\u1ec7c l\u1ef1a ch\u1ecdn \u0111\u1ed1i t\u01b0\u1ee3ng \u0111o.<\/p>\n

                  Sau khi \u0111\u00e3 \u0111o v\u00e0 \u0111\u1ecbnh ngh\u0129a xong m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng (V\u00ed d\u1ee5 \u0111\u01b0\u1eddng tr\u00f2n C1 trong h\u1ec7 quy chi\u1ebfu MCS). \u0110\u1eb7c t\u00ednh c\u1ee7a \u0111\u1ed1i t\u01b0\u1ee3ng \u0111o s\u1ebd kh\u00f4ng thay \u0111\u1ed5i trong c\u00e1c h\u1ec7 quy chi\u1ebfu kh\u00e1c nhau (h\u1ec7 tr\u1ee5c 2, h\u1ec7 tr\u1ee5c 3, PCS). B\u1ea1n c\u00f3 recall \u0111\u1ec3 ki\u1ec3m ch\u1ee9ng. C\u00e1c th\u00f4ng s\u1ed1 \u0111\u01b0\u1eddng k\u00ednh, \u0111\u1ed9 tr\u00f2n\u2026 s\u1ebd ko thay \u0111\u1ed5i. Vi\u1ec7c thay \u0111\u1ed5i h\u1ec7 tr\u1ee5c ch\u1ec9 l\u00e0m thay \u0111\u1ed5i h\u1ec7 t\u1ecda \u0111\u1ed9 c\u1ee7a \u0111\u01b0\u1eddng tr\u00f2n C1 (t\u1ecda \u0111\u1ed9 t\u00e2m, vector ch\u1ec9 ph\u01b0\u01a1ng)<\/p>\n

                  Tuy nhi\u00ean, v\u1ea5n \u0111\u1ec1 n\u1eb1m \u1edf tr\u01b0\u1edbc khi b\u1ea1n \u0111o C1. Khi \u0111\u1ecbnh ngh\u0129a \u201cki\u1ec3u\u201d \u0111\u1ed1i t\u01b0\u1ee3ng l\u00e0 \u0111\u01b0\u1eddng tr\u00f2n trong MCS. N\u1ebfu \u0111\u1ed9 kh\u00f4ng tr\u00f2n n\u1eb1m \u1edf ng\u01b0\u1ee1ng ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c (hay n\u00f3i c\u00e1ch kh\u00e1c l\u00e0 m\u00e1y t\u00ednh to\u00e1n \u0111\u01b0\u1ee3c \u0111\u01b0\u1eddng tr\u00f2n t\u1eeb t\u1ecda \u0111\u1ed9 c\u00e1c \u0111i\u1ec3m \u0111o). Khi \u0111\u00f3, m\u00e1y s\u1ebd t\u00ednh to\u00e1n v\u00e0 v\u1ebd ra m\u1ed9t \u0111\u01b0\u1eddng tr\u00f2n best fit v\u1edbi c\u00e1c \u0111i\u1ec3m \u0111o n\u00e0y.<\/p>\n

                  \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 \u0111\u01b0\u1eddng tr\u00f2n C1 thu \u0111\u01b0\u1ee3c trong MCS kh\u00f4ng ch\u00ednh x\u00e1c (t\u1ecda \u0111\u1ed9 t\u00e2m, b\u00e1n k\u00ednh, vector ch\u1ec9 ph\u01b0\u01a1ng\u2026). V\u1eady n\u00f3 c\u0169ng s\u1ebd kh\u00f4ng ch\u00ednh x\u00e1c trong c\u00e1c h\u1ec7 quy chi\u1ebfu kh\u00e1c.<\/p>\n

                  \u0110\u00f3 ch\u00ednh l\u00e0 l\u00fd do ch\u00fang ta c\u1ea7n tu\u00e2n th\u1ee7 tr\u00ecnh t\u1ef1 thi\u1ebft l\u1eadp\u00a03 y\u1ebfu t\u1ed1 x\u00e1c \u0111\u1ecbnh h\u1ec7 tr\u1ee5c t\u1ecda \u0111\u1ed9.<\/strong><\/p>\n

                  Hi v\u1ecdng b\u00e0i vi\u1ebft n\u00e0y s\u1ebd h\u1eefu \u00edch cho c\u00e1c b\u1ea1n. Kh\u00f4ng ch\u1ec9 v\u1edbi m\u00e1y CMM Nikon s\u1eed d\u1ee5ng ph\u1ea7n m\u1ec1m Camio \u2013 nguy\u00ean t\u1eafc n\u00e0y \u0111\u00fang v\u1edbi t\u1ea5t c\u1ea3 c\u00e1c m\u00e1y \u0111o CMM kh\u00e1c<\/p>\n\n\n

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                  \u7533\u3057\u8a33\u3042\u308a\u307e\u305b\u3093\u3001\u3053\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u306f\u305f\u3060\u4eca\u3000\u30d9\u30c8\u30ca\u30e0\u8a9e\u3000\u306e\u307f\u3067\u3059\u3002 For the sake of viewer convenience, the content is shown below in the alterna […]<\/p>\n","protected":false},"author":2,"featured_media":2728,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[1021],"tags":[1195,86,146,1215,1171],"acf":[],"_links":{"self":[{"href":"https:\/\/backup.hieuchuan3d.com\/ja\/wp-json\/wp\/v2\/posts\/2727"}],"collection":[{"href":"https:\/\/backup.hieuchuan3d.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/backup.hieuchuan3d.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/backup.hieuchuan3d.com\/ja\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/backup.hieuchuan3d.com\/ja\/wp-json\/wp\/v2\/comments?post=2727"}],"version-history":[{"count":0,"href":"https:\/\/backup.hieuchuan3d.com\/ja\/wp-json\/wp\/v2\/posts\/2727\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/backup.hieuchuan3d.com\/ja\/wp-json\/wp\/v2\/media\/2728"}],"wp:attachment":[{"href":"https:\/\/backup.hieuchuan3d.com\/ja\/wp-json\/wp\/v2\/media?parent=2727"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/backup.hieuchuan3d.com\/ja\/wp-json\/wp\/v2\/categories?post=2727"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/backup.hieuchuan3d.com\/ja\/wp-json\/wp\/v2\/tags?post=2727"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}