Theoretical basis and practical ways to improve the accuracy of measuring the burning rate of energetic condensed systems by a microwave technique are considered. An analysis is made of the factors that reduce the measurement accuracy, in particular, edge effects, the non-evanescence of the waveguide, change in the effective diameter of the waveguide due to incomplete burning of the reinforcing composition, intrachamber pressure, curvature (roughness) of the burning surface. The components of the systematic measurement error are determined, the measurement error is calculated, and a numerical correction method for reducing the error to 4.5% is proposed.
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Original Russian Text © D.A. Yagodnikov, A.V. Sergeev, V.V. Kozichev.
Published in Fizika Goreniya i Vzryva, Vol. 50, No. 2, pp. 51–61, March–April, 2014.
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Yagodnikov, D.A., Sergeev, A.V. & Kozichev, V.V. Experimental and theoretical basis for improving the accuracy of measuring the burning rate of energetic condensed systems by a microwave method. Combust Explos Shock Waves 50, 168–177 (2014). https://doi.org/10.1134/S0010508214020075
- energetic condensed systems
- microwave measurements
- burning rate