如果採用 Code V 軟體,那麼可以用 SAGF 函數計算面深(Sag)量: ?3_^SRW&a
SAGF(surface_num, zoom_pos, x_coord, y_coord) - Sag of the designated surface at x_coord, y_coord uFUVcWt
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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: WvoJ^{\4N*
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(1) 使用 Zygo 干涉儀 H3xMoSs
函數 @VFA(zoom #, surface #, height) 3j6Am{9
Surface is testable for @VFA < 1.0 $=9g,39
Surface is not testable for @VFA > 1.0 Yn_v'Os2
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(2)使用 QED 干涉儀 ^Q#g-"b
函數 @SSIa(surface #, zoom #, height) uPVO!`N3
0 <= @SSIa < 0.5 - surface is readily testable X()yhe_
0.5 <= @SSIa < 1 - surface is marginally testable a 7>^^?|
@SSIa >= 1 - surface is difficult to test