Forno C, Giliham E J
Appl Opt. 1973 May 1;12(5):1034-7. doi: 10.1364/AO.12.001034.
A method of using two rotating sector disks to attenuate a beam of light by an exact integral factor is described. The method provides a means for measuring intensity ratios or filter transmissions without errors due to detector nonlinearity, provided that the detector obeys Talbot's law, and has a number of advantages over the ordinary sector-disk method used for this purpose. An apparatus for testing whether the detector obeys Talbot's law is also described.
描述了一种使用两个旋转扇形盘将光束衰减精确整数倍的方法。该方法提供了一种测量强度比或滤光片透过率的手段,且不会因探测器非线性而产生误差,前提是探测器遵循塔尔博特定律,并且与为此目的使用的普通扇形盘方法相比具有许多优点。还描述了一种用于测试探测器是否遵循塔尔博特定律的装置。