Detection method e.g. for blocked impulse lines of differential pressure sensors, involves having sequential numbers given in advance being absolute pressure signal and differential pressure signal

摘要

The method involves having sequential numbers given in advance being an absolute pressure signal and a differential pressure signal and a coefficient of correlation determined. A determination is made of the correlation between sequential successive coefficients and a typical correlation measure. From the fluctuations of the coefficients, a fluctuation measure is determined. From the fluctuation measure a tolerance value is dynamically determined around the typical correlation measure whose excess is triggered by the current coefficient of correlation. The typical correlation measure is a determined histogram and the fluctuation measure is a determined histogram.