STUDY OF DYNAMIC CHARACTERISTICS OF THE MECHANICAL CIRCUIT OF THE DEVELOPED INDUCTION INERTIAL VIBRATION TRANSDUCER
Abstract
The article examines the dynamic characteristics of the mechanical circuit of the developed induction vibration transducer. It is found that in the investigated transducers forced oscillations occur with the frequency of the input disturbing force, the amplitude of forced oscillations does not depend on the initial conditions and time, and in forced oscillations with damping there is always a shift of the oscillation phase compared to the phase of the input disturbing force. It is shown that the induction vibration transducer reproduces the measured vibrations with small distortions only in a relatively narrow frequency region at frequencies of the input disturbing force much lower than the natural frequency of the mechanical oscillating circuit. Deviations of the amplitude-frequency response from a constant value at zero value of the input disturbing force characterize amplitude distortion. To reduce amplitude distortion at a given frequency of the input disturbing force, it is necessary to increase the natural frequency of the mechanical oscillating circuit of the converter and to choose a quite certain value of the degree of calming.