如果採(cǎi)用 Code V 軟體，那麼可以用 SAGF 函數(shù)計(jì)算面深(Sag)量： UAsF0&]
SAGF(surface_num, zoom_pos, x_coord, y_coord) - Sag of the designated surface at x_coord, y_coord {D_++^
V!T^wh;
如果想知道的是某一非球面的型狀是否能由干涉儀測(cè)量，那麼 Code V 提供兩個(gè)函數(shù): E-UB -"6
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(1) 使用 Zygo 干涉儀 gYTyH.
函數(shù) @VFA(zoom #, surface #, height) @-'/__cgt
Surface is testable for @VFA < 1.0 /S:w&5e
Surface is not testable for @VFA > 1.0 R'Kt=.s<
J)9 AnGWe
(2)使用 QED 干涉儀 1YOg1 n+k
函數(shù) @SSIa(surface #, zoom #, height) ?,ZELpg n
0 <= @SSIa < 0.5 - surface is readily testable V";mWws+?#
0.5 <= @SSIa < 1 - surface is marginally testable 5f;n<EP y
@SSIa >= 1 - surface is difficult to test
