Theoretical aspects of dynamic weighings

Abstract

The paper discusses the theoretical aspects of the dynamic weighing by the conveyor scales. In the framework of the statistical equilibrium thermodynamics we obtain a formula that relates the parameters of the measuring system, the characteristics of the cargo and movement of the conveyor. Conditions are obtained for optimization of dynamic weighing. Considered the problem of weighing the particulate material. It is shown that the error in measuring the weight of the material proportional to the square of its porosity. The problems of thermodynamic constraints on the process of dynamic weighing are considered. It is shown that the energy cost information can not be arbitrarily small, even for arbitrarily large time (or bandwidth). The principal possibility of excluding the majority of the factors affecting the accuracy of the information-measuring systems for weighing on conveyors is shown.