FIELD: radio engineering, communication.
SUBSTANCE: invention is based on using electromagnetic relays, called vibration transducers. In the device, the vibration transducer is based on a non-polarised relay and is excited by current in form of alternating-sign rectangular pulses. Modulation is carried out at one even harmonic. This is achieved by switching input current twice over the period of the exciting current, wherein duration of the pulses of the modulated current coincides with the duration of the alternating-sign pulses of exciting current, equal to π/2n, where n is the number of the selected even harmonic.
EFFECT: reduced zero shift and drift of the disclosed device, high reliability of the device and longer service life thereof.
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