Advances in Monitoring of Velocities and Densities of Particulates Using Microwave Doppler Effect

Recent advances in monitoring of velocities, densities, and mass flow rates of particulates using a microwave Doppler radar are presented. It has been found that the Doppler signal scattered by the flow field of particulates contains information not only about the mean velocity of the field (mean frequency of the Doppler signal) but also about the mean density of the field (rms value of the Doppler signal). Experimental results obtained using a X-band Doppler module are presented.

[1]  Stanislaw S. Stuchly,et al.  Microwave Doppler-Effect Flow Monitor , 1975, IEEE Transactions on Industrial Electronics and Control Instrumentation.

[2]  F. B. Berger.  The Nature of Doppler Velocity Measurement , 1957, IRE Transactions on Aeronautical and Navigational Electronics.

[3]  Norihiko Morinaga,et al.  On the Mean Frequency Measurement System Using Correlation Detection , 1974, IEEE Transactions on Aerospace and Electronic Systems.

[4]  J. Harris.  Interrogating Flow Fields with Radar and Laser Sources , 1970 .

[5]  Leonard Ehrman.  Analysis of a Zero-Crossing Frequency Discriminator with Random Inputs , 1965, IEEE Transactions on Aerospace and Navigational Electronics.

[6]  D. Ellerbruch.  Microwave Methods for Cryogenic Liquid and Slush Instrumentation , 1970 .

[7]  M. S. Beck,et al.  Current industrial methods of solids flow detection and measurement , 1969 .