MULTIBEAM MEASURING DEVICE

摘要

Multibeam measuring device for the real time polarimetric analysis of samples (6), wherein a linearly polarized measuring beam (M) is separated after having traversed the sample (6) by means of a first separation blade (8), preferably a diffraction unit, into a reference beam (R) and at least one test beam (P). Photodiodes (10, 12) record the intensities of both partial beams between which a certain ratio is established, an analyser (14) with fixed through-pass direction being inserted downstream of a photodiode (12). The intensity value of the test beam (P) which is standardized by the formation of the ratio as a function of the intensity of the reference beam (R) is inputted into a digital data processing unit (24). For the ratio formation, an analog/digital converter (22) is used and provided downstream of the digital data processing unit (24).