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: )TcW.d6
SAGF(surface_num, zoom_pos, x_coord, y_coord) - Sag of the designated surface at x_coord, y_coord G(~"Zt}?
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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(cè)量,那麼 Code V 提供兩個(gè)函數(shù): G?6[K&w
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(1) 使用 Zygo 干涉儀 ^m:?6y_uw
函數(shù) @VFA(zoom #, surface #, height) BqKh&m
Surface is testable for @VFA < 1.0 \YBY"J
Surface is not testable for @VFA > 1.0 8^N"D7{mO
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(2)使用 QED 干涉儀 `cr.C|RT:
函數(shù) @SSIa(surface #, zoom #, height) ;2;Kq)j_=
0 <= @SSIa < 0.5 - surface is readily testable 7MT[fA8^
0.5 <= @SSIa < 1 - surface is marginally testable 6!n%SUt
@SSIa >= 1 - surface is difficult to test