FIELD: measuring equipment engineering.
SUBSTANCE: method includes collection of radiation on three polarizer-analyzers, while second and first polarizer-analyzers are rotated symmetrically relatively to plane of plane-polarized radiation coming into solution, and third polarizer-analyzer is directed in same plane of plane-polarized radiation coming into solution. Signals from three photoelectric receptors are amplified in these three channels, synchronously detected, transformed into digital form and handled. Measurement of polarization plane rotation angle is performed in two stages on basis of relations, which exclude influence of non-identity of channels and allow to measure polarization plane rotation angle at large range.
EFFECT: higher precision.
2 dwg
