FIELD: radio equipment.
SUBSTANCE: invention relates to radio engineering, as well as measurement equipment and can be used in electromechanical balancing systems of rotors. Active RC-filter includes first and second channels with differential inputs and outputs, each of which includes frequency-setting resistors, operational amplifier, and frequency-setting capacitors, and an additional operational amplifier connected to outputs of the first and second channels, and inverting and non-inverting paraphrase outputs is connected to the first output of the device.
EFFECT: technical result consists in improvement of guaranteed attenuation of amplitude-frequency characteristic (AFC) of active RC-filter (ARC-filter) for processing of piezoelectric signals of sensors beyond bandpass of useful signal.
1 cl, 5 dwg
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