Abstract
A method and hardware for ultrasonic control of an inhomogeneous gaseous medium are presented. An algorithm based on digital phase modulation of pulse signals and their correlation processing is used to increase the resolution of an ultrasonic device. The algorithm allows high-resolution measurements of the time delay between the ultrasound pulses that arrive at a receiver along different propagation paths in an inhomogeneous medium. It is shown that it is possible to measure small values of time delays by analyzing the asymmetry of the cross correlation functions of signals. Laboratory experimental measurements carried out under scattering of ultrasound in an inhomogeneous airflow are described. The possibility of measuring relative time delays of 3–5 μs of pulses at the 40-kHz carrier frequency of ultrasound is shown.
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Hazas, M. and Hopper, A., IEEE Trans. Mob. Comput., 2006, vol. 5, no. 5, p. 536. doi 10.1109/TMC.2006.57
Cruette, D., Marillier, A., Dufresne, J.L., and Grandpeix, J.Y., J. Atmos. Oceanic Technol., 1999, vol. 17, p. 1020. doi 10.1175/1520-0426(2000)017<1020:FTATAM> 2.0.CO;2
Kremlevskii, P.P., Raskhodomery i schetchiki kolichestva veshchestv: Spravochnik (Flow Meters and Substance Amount Counters: Handbook), St. Petersburg: Politekhnika, 2004, vol. 2.
Teufel, M. and Suchánek, M., Abstracts of Papers, 6th International Symposium on Ultrasonic Doppler Method for Fluid Mechanics and Fluid Engineering (ISUD-6), Prague, 2008, p. 167.
Sato, Y., Mori, M., Takeda, Y., Hishida, K., and Maeda, M., in 3rd Int. Symp. on Ultrasonic Doppler Methods for Fluid Mechanics and Fluid Engineering (ISUD-3), Lausanne: Switzerland, 2002, p. 5.
Velmurugan, R. and Rajalakshmy, P., Int. J. Comput. Appl., 2013, vol. 66, no. 10, p. 19.
Coulthard, J. and Yan, Y., Meas. Control, 1993, vol. 26. p. 164.
Slavutskii, L.A. and Kostyukov, A.S., Prib. Sist.: Upr., Kontrol, Diagn., 2009, no. 8, p. 35.
Aldawi, F.J., Longstaff, A.P., Fletcher, S., Mather, P., and Myers, A., Abstracts of Papers, in Computing and Engineering Annual Researchers, Conf. (CEARC’07), Huddersfield, 2007, p. 1.
Kupnik, M., Schröder, A., O’Leary, P., Benes, E., and Gröschl, M., IEEE Sens. J., 2006, vol. 6, no. 4, p. 906. doi 10.1109/JSEN.2006.876042
Ma, S., Wilkinson, A.J., and Paulson, K.S., in Proc. 12th IEEE Int. Conf. on Communication Technology (ICCT) (Nanjing, China, 2010), Piscataway: NJ, IEEE, 2010. doi 10.1109/ICCT.2010.5688708
Elmer, H. and Schweinzer, H., Proc. Intelligent Components and Instruments for Control Applications (Aveiro, Portugal, 2003), Oxford: Elsevier, 2003, p. 273.
Thompson, E., Abstracts of Papers, American School of Gas Measurement Technology, 2011.
Grare, L., Lenain, L., and Kendall M.W., J. Atmos. Oceanic Technol., 2016, vol. 33, p. 2477. doi 10.1175/JTECH-D-16-0055.1
Baiburin, V.B., Derevyagin, G.A., and Kats, B.M., Vestn. SGTU, 2010, no. 1, p. 156.
Barker, R.H., Communication Theory, London: Butterworth, 1953, p. 273. doi 10.1017/S0368393100098217
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Original Russian Text © I.Yu. Bychkova, A.V. Bychkov, L.A. Slavutskii, 2018, published in Pribory i Tekhnika Eksperimenta, 2018, No. 3, pp. 114–119.
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Bychkova, I.Y., Bychkov, A.V. & Slavutskii, L.A. Digital Phase Modulation and Correlation Processing of Ultrasound Signals for Pulsed Measurements in an Inhomogeneous Medium. Instrum Exp Tech 61, 421–426 (2018). https://doi.org/10.1134/S0020441218030077
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DOI: https://doi.org/10.1134/S0020441218030077