LENS-FREE HOLOGRAPHIC OSMOMETER Russian patent published in 2021 - IPC G01N13/04 

FIELD: measuring equipment.

SUBSTANCE: invention relates to apparatuses for measuring the osmotic pressure in liquid and partially ordered media. The lens-free holographic osmometer comprises a cryoscope container for accommodating a sample, a cooling and thermal cycling unit with a temperature sensor, an emission source and a control unit for the cooling and thermal cycling unit and the emission source. A position-sensitive matrix is mounted under the transparent container with a sample so that the light from the emission source mounted above the container and passing through said container falls on the matrix and provides a holographic projection of the structure of the crystallised sample on the matrix in the mode of lens-free microscopy. The cooling and thermal cycling unit is mounted around the container, configured to provide the required thermal cycle for the sample placed in the container through the side walls of the container, and the emission source is movably mounted on a goniometric scale, configured for movable positioning of the emission source relative to the sample in the container. The orientation of the geometric scale does not prevent the formation of a hologram in the plane of projection of the beam from the emission source at modes of movement of the emission source and scanning of the sample, differing in the sequence of recording points.

EFFECT: increase in the metrological quality and resolving power characteristics of optical lens-free recording of the properties of a substance when the temperature thereof is changed.

10 cl, 1 dwg