The reconstruction of waveforms of impulsive strain occurring in an elastic bar by means of deconvolution in the frequency domain

• Autorzy: Kaczmarek Z. , Detka M.
• Języki publikacji: EN

Abstrakty

EN

The paper presents a method of reconstruction of impulsive strain waveforms based on deconvolution in the frequency domain and the spectral transmittance of the bar, which was determined experimentally and given in an analytic form. A regularization of the deconvolution is obtained by means of limiting the frequency band of the inversion filter. In this method the one-point or the two-point measurement of strain waves in an elastic bar can be utilized.

Słowa kluczowe

EN

reconstruction; deconvolution; frequency domain; impulsive strain

• Wydawca: Komitet Metrologii i Aparatury Naukowej PAN
• Czasopismo: Metrology and Measurement Systems
• Rocznik: 2007
• Tom: Vol. 14, nr 2
• Strony: 257--268
• Opis fizyczny: Bibliogr. 7 poz., rys., tab., wykr.

Twórcy

autor

Kaczmarek Z.

autor

Detka M.

• Kielce University of Technology, Division of Theoretical Electrical Engineering and Metrology, Poland,

Bibliografia

• 1. Kaczmarek Z.: Measurement and reproduction of impulsive force and pressure processes. Politechnika Świętokrzyska Monographs, no. 26, Kielce 2001. (in Polish)
• 2. Kaczmarek Z.: Methods of correction of dispersive distortion in a mechanical transducer of the Hopkinson rod type. Metrology Congress, Wrocław 6–9 September 2004, Congress Materials, pp. 221–224. (in Polish)
• 3. Kaczmarek Z.: A frequency-domain deconvolution approach for impact force waveform restoration with the use of one-point strain measurement. Metrology and Measurement Systems, vol. 9, no. 1, pp. 3–17, 2002.
• 4. Kaczmarek Z., Kaczmarek C., Nichoga V.: A modified Impulsive Force and Pressure Sensor Intended for Waveform Reconstruction Purposes. IEEE Trans. Instrumentation and Measurement, 1, pp. 102–106, 2002.
• 5. Detka M., Kaczmarek Z.: Experimental determination of spectral transmittances of an elastic rod. Scientific & Technical Conference “Basic Problems in Metrology” PPM’05, Proc. of the Metrology Committee, PAN Katowice, Series: Conferences no. 8, pp. 351–356. (in Polish)
• 6. Bancroft D.: The velocity of longitudinal waves in cylindrical bar. Physical Review 4, pp. 588–593, 1941.
• 7. Gorham D. A.,Wu X. I.: A numerical method for the correction of dispersion in pressure bar signals I. Phys. E. Sci. Instrum. 16, pp. 477–479, 1983.