Science and Technology of Energetic Materials

Vol.65, No.3 (2004)

Research paper

A new technology for the measurement of linear burning rates of solid propellants by means of ultrasonics (*in japanese)
Kunihiko Wakabayashi, Shuji Hatanaka, Norihide Suruga, Tomoharu Matsumura, Yoshio Nakayama, and Masatake Yoshida


Ultrasonic measurement method for linear burning rate advocated by The French National Aerospace Research Establishment (ONERA) was improved significantly.
Not measuring the propagation time of the ultrasonic wave, but taking full advantage of the Wavelet Analysis on the data of the reflection wave from the burning surface, this new method brought success in extraction of burning rate from the Doppler-shifted wave (up to 100 mm long propellant sample) even with unspecialized chamber. Further, instability study using this Doppler Method is possible because the burning rate is an instantaneous one.

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