如果採用 Code V 軟體,那麼可以用 SAGF 函數計算面深(Sag)量: 9I<~t@q5e@
SAGF(surface_num, zoom_pos, x_coord, y_coord) - Sag of the designated surface at x_coord, y_coord kMLJa=]$
0,@^<G8?
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: A*/8j\{n
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(1) 使用 Zygo 干涉儀 !J@!2S9
函數 @VFA(zoom #, surface #, height) tq'ri-c&b
Surface is testable for @VFA < 1.0 -L6CEe
Surface is not testable for @VFA > 1.0 >O
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(2)使用 QED 干涉儀 :06.b:_
函數 @SSIa(surface #, zoom #, height) zv/dj04>
0 <= @SSIa < 0.5 - surface is readily testable IqepR
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0.5 <= @SSIa < 1 - surface is marginally testable 7hPwa3D^
@SSIa >= 1 - surface is difficult to test