| 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： G+"t/?/
SAGF(surface_num, zoom_pos, x_coord, y_coord) - Sag of the designated surface at x_coord, y_coord 5o'FS{6U
:tB1D@Cb6
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: ;yLu R
p\tm:QWD;
(1) 使用 Zygo 干涉儀 *-=(Q` 3
函數 @VFA(zoom #, surface #, height) Y^;ovH~ ve
Surface is testable for @VFA < 1.0 gw3K+P
Surface is not testable for @VFA > 1.0 PI:4m%[
O1U= X:Zl
(2)使用 QED 干涉儀
Rn(ec
函數 @SSIa(surface #, zoom #, height) )@l%
0 <= @SSIa < 0.5 - surface is readily testable +yH7v5W
0.5 <= @SSIa < 1 - surface is marginally testable TA`1U;c{n
@SSIa >= 1 - surface is difficult to test
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