MODERNIZED DEVICE FOR DETERMINING AVERAGE PATH LENGTH AND EFFECTIVE DIAMETER OF GAS MOLECULES Russian patent published in 2017 - IPC G01N15/00 

FIELD: physics.

SUBSTANCE: device is additionally equipped with a glass tube level soldered to the middle side of the glass cylindrical vessel with a measuring scale extending from the upper side of the glass cylindrical vessel with a glass vacuum valve soldered to the glass monolithic plug with a throat section by three rotational glass "horns" connected in series and hermetically to the capillary made of stainless steel with a flexible polymer capillary, a glass tubular tee with three glass vacuum cranes and a polymeric inflatable-deflated chamber with a glass vacuum valve.

EFFECT: increasing the accuracy of precision visual measurement of water level in a glass cylinder.

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