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Metrology and Measurement Systems

Tytuł artykułu

Fast filtration method for static automatic catchweighing instruments using a nonstationary filter

Autorzy Pietrzak, P. 
Treść / Zawartość
Warianty tytułu
Języki publikacji EN
EN The filtration process of measurement signals which occur in industrial weighing systems, decides upon the accuracy of measurement and the duration time of the weighing process alike. The filtration problem gains great meaning in automatic catchweighing instruments whose rate of operation, in case of static weighing, can reach even a hundred weighings per minute. Since output signals from the catchweighing instruments, due to mechanical vibrations and the noise from the environment, are always contaminated with noise, filtration methods which ensure strong attenuation of vibrations and fast transmission of the signal's constant component, should be applied. In this case, filtration methods involving nonstationary filters turn out to be a good solution. In the paper the filtration method using a discrete nonstationary filter has been discussed. The results of the numerical experiment which was carried out based on the measurement signals recorded on the catchweigher operating in the industrial environment, have been presented. The results obtained using the nonstationary filter have been compared with its stationary equivalent.
Słowa kluczowe
EN mass measurement   static automatic weighing   filtration and signal processing   nonstationary filter   time-varying filter  
Wydawca Komitet Metrologii i Aparatury Naukowej PAN
Czasopismo Metrology and Measurement Systems
Rocznik 2009
Tom Vol. 16, nr 4
Strony 669--676
Opis fizyczny Bibliogr. 13 poz., rys., tab., wykr.
autor Pietrzak, P.
  • West Pomeranian University of Technology, Faculty of Electrical Engineering, Institute of Control Engineering, 26 Kwietnia 10, 71-126 Szczecin, Poland,
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