Microwave autodyne moving sensors for measurement of burning speed of high-energy composite materials

Speed of burning is the basic characteristic of high-energy composite materials (HECM), and it is usually determined by results of the analysis of pressure dependence on time in stationary experiences on small samples burning at several relatively constant pressure within the limits of 10%. In materials of present report radar-tracking autodyne devices in a frequency range from 30.0 up to 10.0 GHz are submitted which have been developed for measurement of the current burning speed of fuels samples in the non-stationary conditions caused pressure or HECM quality changes on thickness of a sample burning arch. Methodical problems of processing of the measuring information are considered. Operational opportunities of autodyne moving sensors for a wide range of change of measurements conditions and for tested materials properties are determined. The attenuation dependence of electromagnetic microwave radiation on the contents of the fine-dyspersated aluminium in HECM structure is established. In the given results of experimental researches an applicability of the microwave method realized with use of autodyne sensors for an estimation of HECM quality and definition of the burning law is shown at measurements of burning speed in conditions of growing pressure that opens an opportunity of forecasting of burning HECM laws in various devices