FIELD: measuring equipment.
SUBSTANCE: invention relates to measurement equipment and can be used in electromechanical balancing systems of rotors. Active RC-filter has an amplification channel, piezoelectric sensor (4), resistors, operational amplifiers, capacitors which provide processing of piezoelectric signals of sensors outside the pass band of the useful signal.
EFFECT: high guaranteed attenuation of the amplitude-frequency characteristic of the active RC-filter for processing piezoelectric signals of sensors outside the band-pass of the useful signal.
1 cl, 8 dwg
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