| zebra |
2023-03-07 17:47 |
如果採用 Code V 軟體，那麼可以用 SAGF 函數計算面深(Sag)量： Nz `4q %+
SAGF(surface_num, zoom_pos, x_coord, y_coord) - Sag of the designated surface at x_coord, y_coord Z% 3]
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如果想知道的是某一非球面的型狀是否能由干涉儀測量，那麼 Code V 提供兩個函數: {HKd="%VG
(Dr g
(1) 使用 Zygo 干涉儀 l4+!H\2
函數 @VFA(zoom #, surface #, height) JcsJfTI
Surface is testable for @VFA < 1.0 k=,,s(]tx
Surface is not testable for @VFA > 1.0 M17oAVN7D
8$O =H E*
(2)使用 QED 干涉儀 V eO$n*O
函數 @SSIa(surface #, zoom #, height) 5~T`R~Uqb
0 <= @SSIa < 0.5 - surface is readily testable %u\Oj \8U
0.5 <= @SSIa < 1 - surface is marginally testable av> c
@SSIa >= 1 - surface is difficult to test
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