DEVICE TO CALIBRATE PRESSURE METRES Russian patent published in 2010 - IPC G01L27/00 

FIELD: instruments making.

SUBSTANCE: proposed device comprises assembly to produce pressure including flywheel, working fluid pump, assembly to set pressure and surplus pressure system comprising reference pressure metre connected to said pump. Assembly to produce pressure represents a housing. Inner-thread hole, chamber communicated with working fluid chamber and chamber communicated with the former and surplus pressure chamber are consecutively arranged inside said housing. Said inner-thread hole accommodates rod with outer thread and smooth section. Flywheel is secured to said rod top part to be driven thereby. Sealing element is arranged between specified chambers to make pressure setting assembly with said rod.

EFFECT: higher reliability of direct comparison device.

2 dwg