SU368698A1 - VIBRATOR CONVERTER - Google Patents

Description

one

The proposed high-stability vibro-shock modulator converter can be used in input circuits of direct current or voltage amplifiers.

A vibro-impact transducer is known, which contains measles consisting of a flat spring, one end of which is fixed, the shock mass is fixed at the second end, rigid crush stops of the crust and the exciter cores of the crust.

However, in such a vibration transducer, the vibration mode is unstable and changes as a result of wear.

The proposed device is characterized in that a flat spring with movable contacts located between rigid, previously adjusted contacts is fixed at the top of the shock mass.

This ensures the constancy of the contact closure duration.

The drawing shows schematically the proposed Converter.

The converter contains measles / consisting of a flat spring with a shock mass fixed at its end; hard limiters. 2 moves; excitation coil 3; flat spring 4; insulating gasket 5; contact mass 6; flexible wire 7 and rigid adjustable contacts 8.

The Converter operates as follows.

When fed into the excitation coils 3 alternating half-waves of alternating current alternately.

Driving to them through the valves), the measles /, excited by a magnetic field that periodically changes its polarity, makes forced oscillations, the amplitude of which is limited by limiters 2, and the frequency is determined by the frequency of the current feeding the excitation coils. The parameters of the converter and the excitation current are selected so that it operates in the tightening mode, which ensures a high stability of the form of its vibro-shock oscillations. The stiffness of the flat spring 4 and the contact mass 6 are selected so that the frequency of their natural oscillations is much lower than the frequency of excitation of the vibro-shock oscillator. This allows, by adjusting the position of the contacts 5, to set the desired duration of contact closure. The flight time is determined by the frequency of the vibro-shock oscillations of the transducer and the distance between the contacts.

Subject invention

Vibro shock transducer containing measles consisting of a flat spring.

one end of which is fixed and at the second end reinforced shock mass, rigid travel stops of the core and the excitation coil of the core, characterized in that, in order to ensure the duration of the contact closures, a flat spring is fixed on the top of the shock mass with rigid contacts , pre-adjusted by contact.

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