FIELD: measurement technology. SUBSTANCE: device for testing and calibration of flow rate converter has calibrated pipe-line, ejector coupled through screw gear placed in butt of pipe-line to electric motor drive, test section with tested flow rate converter communicating spaces on both sides of ejector, additional electric motor drive, additional ejector coupled with supplementary screw gear located in the other butt of pipe-line linked to additional electric motor drive. Combination of these two ejection systems performs function of differential gear in the absence of this gear as such which enable kinematic error attributed to it to be eliminated, i.e. precision of test and calibration of flow rate converter to be enhanced. EFFECT: enhanced precision of test and calibration of flow rate converter. 1 dwg
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