DEVICE FOR CALIBRATION OF DIFFERENTIAL PRESSURE MEASURING DEVICES Russian patent published in 2014 - IPC G01L27/00 

FIELD: measuring equipment.

SUBSTANCE: device for calibration of differential pressure measuring devices comprises a plenum chamber connected to the pressure control device. The plenum chamber is connected to the standard manometer. The pressure control device is made in the form of a U-shaped transparent flexible conduit filled with liquid with the height of not less than 1 metre, which one side is fixed stationary and is connected to the plenum chamber, and the second has the end open to the atmosphere and is fixed to the transportation mechanism, providing its reciprocating movement in the vertical direction. The plenum chamber is connected to calibrated measuring devices.

EFFECT: improving the accuracy of measurement of the calibrated pressure sensor.

2 cl, 2 dwg