INVESTIGATION OF DYNAMIC CHARACTERISTICS OF DEVELOPED INDUCTION INERTIAL VIBRATION TRANSDUCERS
INVESTIGATION OF DYNAMIC CHARACTERISTICS OF DEVELOPED INDUCTION INERTIAL VIBRATION TRANSDUCERS
Ключевые слова:
induction vibration transducer, inertial action, permanent magnet, magnetic field, magnetic flux, air gap, measuring winding, inertial element, pole tip, electromotive force, linear oscillation, free oscillation, forced oscillation, dynamic characteristic, damping coefficient, damping coefficient.Аннотация
The paper studies the dynamic characteristics of the developed induction vibration transducers. It is found that in the investigated transducers the transient characteristic consists of two free (oscillatory and aperiodic) and one forced component. Forced oscillations occur with the frequency of the input perturbing force, the amplitude of forced oscillations does not depend on 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 perturbing force. It is revealed that the attenuation rate of the free oscillatory component depends on the attenuation coefficient of the mechanical circuit, and the aperiodic component depends on the time constant of the measuring circuit of the transducer. In the structural schemes of automatic control systems, the investigated transducers are represented as a series connected oscillating, ideal differentiating links and an inertial link of the first order.
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