4Srikanth Venkatasubramanian, et al. Flow Rate Measurement of A Fibrous Material Using A Pressure Drop Technique[J]. Flow Measurement and Instrumentation, 2000, 11:177-183.
5Yan. Y. Mass Flow Measurement of Bulk Solids in Pneumatic Pipelines[J]. Measurement Science and Technology, 1996, (7): 1687-1706.
6Millen M J. Sowerby B D, Coghill P J, etal. Plant Tests of an on-line Multiple-pipe Pulverized Coal Mass Flow Measuring System [J]. Flow Measurement and Instrumentation, 2000, 11(3): 153-158.