如果採用 Code V 軟體,那麼可以用 SAGF 函數計算面深(Sag)量: <tvLKx
SAGF(surface_num, zoom_pos, x_coord, y_coord) - Sag of the designated surface at x_coord, y_coord Va )W[I
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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: D$>!vD'
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(1) 使用 Zygo 干涉儀 .Y6v#VI
函數 @VFA(zoom #, surface #, height) lie,A
Surface is testable for @VFA < 1.0 C>|.0:[%
Surface is not testable for @VFA > 1.0 s4fO4.bn m
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(2)使用 QED 干涉儀 /4T6Z[=s
函數 @SSIa(surface #, zoom #, height) '~Y@HRVL@|
0 <= @SSIa < 0.5 - surface is readily testable BL&AZv/T
0.5 <= @SSIa < 1 - surface is marginally testable Ao\P|K9MyL
@SSIa >= 1 - surface is difficult to test