DEVICE AND METHOD FOR MEASURING FACTOR OF POSITION OF PRESSURE CONTROLLER THROTTLING ELEMENT Russian patent published in 2009 - IPC G05D16/00 

FIELD: physics, engines and pumps.

SUBSTANCE: pressure controller is arranged in the fluid medium flow channel and incorporates throttling element (32) which can move in the said channel. Drill pipe (30) is attached to the throttling element. The proposed device comprises first pressure transducer (34) to measure the pressure upstream of the said throttling element, second pressure transducer (35) to measure pressure downstream of the said throttling element, position pickup (40) to determined the throttling element position, flow meter (58) temporarily arranged downstream of the throttling element to read out the measured fluid medium flow. The proposed device comprises also processor (50) incorporating the stored algorithm designed to define the correction for factor of the drill pipe position proceeding from the pressures upstream and downstream, the throttling element position and measured value of fluid medium flow. In compliance with this invention proposed are also the system and method for calibration of temperature gage (48) coupled with the pressure controller.

EFFECT: higher accuracy of measurements of fluid medium flow, possibility of controlling fluid medium pressure.

6 cl, 6 dwg