DEVICE FOR CALIBRATING PRESSURE GAGES Russian patent published in 2006 - IPC G01L27/00 

FIELD: testing engineering.

SUBSTANCE: device comprises collector that is connected with the reference instrument, pressure gages to be calibrated, tank filled with fluid, and pressure source through the control and distributing means. The reference instrument is made of a pressure gage. The pressure gage is connected with the control device. The distributing means are made of electrically controlled valves. The tank filled with fluid is pressure-tight and connected with the collector via one of the electrically controlled valves. The device for generating pressure is made of fluid-pressure operated booster connected in parallel and having various amplification coefficients. The inputs of the boosters are connected with the source of compressed air through reduction valves, and the outputs are connected with the collector through the electrically controlled valves. The control device has microprocessor, indication unit, and printer. The reduction valves may be electrically controlled.

EFFECT: reduced time of calibration.

1 cl, 1 dwg