Title :
Dynamic Modeling of Pressure Pipelines and Signal Reconstruction
Author :
Jun, Yang ; Yufang, Wang ; Cheng, Li
Author_Institution :
Changcheng Inst. of Metrol. & Meas., Beijing, China
Abstract :
In order to improve the dynamic pressure measurement´s accuracy with pressure pipelines, the dynamic modeling of equal diameter pressure pipelines and signal reconstruction were studied. Through the theoretic analysis, dynamic calibration with SPG and parameters identification, more accurate dynamic models of the equal diameter pressure pipelines were upbuilded. With the dynamic models and FFT method, measurement output signals of the sinusoidal pressure and step pressure were reconstructed. The uniformity of signals´ waveform compared to the actual pressure and the measurement´s accuracy were all improved obviously.
Keywords :
calibration; fast Fourier transforms; parameter estimation; pipelines; pressure measurement; signal reconstruction; FFT method; dynamic calibration; dynamic pressure measurement; equal diameter pressure pipeline dynamic modeling; measurement output signals; parameter identification; pressure pipeline dynamic modelling; signal waveform uniformity; sinusoidal pressure; step pressure; Calibration; Frequency response; Pipelines; Pressure measurement; Signal reconstruction; Transducers; Transmission line measurements; SPG; dynamic modeling; pressure pipeline; signal reconstruction; system Identification;
Conference_Titel :
Instrumentation, Measurement, Computer, Communication and Control, 2011 First International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-0-7695-4519-6
DOI :
10.1109/IMCCC.2011.29