Viggiani E
Boll Soc Ital Biol Sper. 1980 Nov 30;56(22):2340-4.
A method for the measurement of light transmission is described. It makes use of an illuminator, a photometer to which a measuring and a reference photocell are connected, a bifurcated light guide and four special holders, two for the photocells and two for the branches of the light guide. The reference photocell gives the values of the first intensity while the measuring photocell, covered by the sample to be examined, gives the values of the second intensity. By just switching from one photocell to the other, without moving the sample it is possible to verify the values of both the first and the second intensity and consequently insure more precise measurements.
描述了一种测量光透射率的方法。它利用一个照明器、一个连接了测量光电池和参考光电池的光度计、一个分叉光导以及四个特殊的支架，其中两个用于放置光电池，另外两个用于放置光导的分支。参考光电池给出第一强度的值，而被待检测样品覆盖的测量光电池给出第二强度的值。通过仅在两个光电池之间切换，而不移动样品，就可以验证第一强度和第二强度的值，从而确保更精确的测量。
