Modern aspects of the vibration transducers making for the systems of the granular, loose and powdered materials

摘要

The different types of vibration are very important for many fields of science and technique. They are characterized by the following basic parameters: vibration shift (position) X, vibration acceleration A and vibration velocity V. Depending on the physical law that is basis of principles of the different types of vibration converters operation, it is possible to receive the according signals, proportional to X, V or A. There is a trade-off in choosing of the concrete type of vibration converter for the concrete objacts of research and the operation conditions, because often the vibration converter does not fulfil the requirements on accuracy, sensitivity, speed and frequency range simultaneously. The parameters X, V and A are connected between each other by the definite functional dependences. Therefore it is necessary to solve the problem of choosing of optimal parameters of vibration converter. Taking into account the connections between X, V and A, the conceptual model that displays in its structure the availability of three circuits: circuit of A, circuit of V and circuit of X. The comparing analysis of the circuits allows to estimate time of transient process and dependence between accuracy and speed, also to answer the question that when for this class of problems it is more useful to have the parameters A, V or X as an informative parameter.