High static pressure difference prediction method for piston pressure gauge

Abstract

The invention relates to the field of piston pressure prediction, and discloses a high static pressure difference prediction method for a piston pressure gauge, and the method comprises the steps: collecting and recording the displacement data and pressure data during the movement of a piston, recording the environment data during the movement of the piston, and carrying out the preprocessing and error analysis of the collected data, thereby obtaining a high static pressure difference prediction result. The data acquisition module is used for judging whether the acquired data is accurate or not, obtaining a current differential pressure value through differential pressure analysis, calculating an actual differential pressure evaluation coefficient by combining the current differential pressure value with a differential pressure value within a period of historical time, and predicting the high static pressure difference of the piston pressure gauge by constructing a mathematical model of the piston pressure gauge. And performing error analysis on the differential pressure prediction result predicted by the model and the actual differential pressure evaluation coefficient to obtain an error factor, correcting the error generated by the model through the error factor, and outputting the prediction result after error correction, thereby being beneficial to ensuring the comprehensiveness and accuracy of data acquisition, and improving the accuracy of data acquisition. And the accuracy and reliability of model prediction are further improved.

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