English En

POLARIMETERS

Polarimeters are instruments used to measure optical properties of substances. The polarimeter measures the 'angle of rotation' and the measurement result is needed in sugar refining, in chemical production and in the manufacturing of food additives and pharmaceuticals to determine purity. A great number of organic and inorganic substances are optically active in their crystalline, liquid, or dissolved state. These substances rotate the direction of polarized light by a specific angle. The principle of the polarimeter is achieved when a dissolved optically active substance is introduced between two polarizing filters that cross at an angle of 90°. The intensity of the light on the detector behind the second polarizing filter changes depending on the angular position of these two filters.

Filter by brand

Filter by type