MEASURING DEVICE FOR DETERMINATION OF PRESET ANGLE AND AZIMUTHAL SURFACE ENERGY OF LIQUID CRYSTAL Russian patent published in 2019 - IPC G01B21/22 G01M11/02 

FIELD: measuring equipment.

SUBSTANCE: invention relates to automated measurement system. Device for measuring parameters of inclination angle and azimuthal surface interaction of liquid crystals includes an elongated housing, a power supply and a step motor with a step motor control unit. Fasteners for a radiation source, a polarizer, an assembly of sample holders of the analyzed object, an analyzer and a measuring device are serially installed on the housing along the long side. Stepper motor is connected to the specimen holder assembly of the analyzed object, which is a unit of two conical wheels with mated lateral sides, each of which includes a cavity for placing a sample of the analyzed object and an invoice surface of the lateral side. Small bases of rings are oriented perpendicular to each other, one of which is parallel to the long side of the housing, and the other is perpendicular.

EFFECT: faster process of searching for new materials for LCD displays by achieving more accurate measurement of their characteristics with a combination of different measurement techniques in one apparatus.

11 cl, 5 dwg