LIQUID-FILLED COLUMN MANOMETER Russian patent published in 2001 - IPC

FIELD: metrology, measurement of pressure in various branches of industry and in scientific research. SUBSTANCE: proposed manometer has profiled tube with several U-shaped sections of different diameters filled with liquid. Safety unit comes in the form of branch pipe of variable diameter. Upper narrowed end of branch pipe communicates with medium which pressure is measured. Reading unit is manufactured in the form of scale marked on body of rotation. Scale moves freely with regard to tube. Float is placed on surface o section of larger diameter. Section of manometer can be made in the form of helical spiral composed of several turns with vertical spacing. EFFECT: expanded functional capabilities, simplified design with preservation of measurement accuracy and authenticity. 3 cl, 6 dwg