FIELD: physics.
SUBSTANCE: device contains reactive and active signal processing channel. The device includes sinusoidal voltage generator, phase shifter, instrument bridge transformer, amplifier, sensitivity control, synchronous detectors, direct current amplifiers, low-pass and high-pass filters, module extractor, adder, integrator, threshold device, output signal shaper.
EFFECT: elimination of false operations and simplification of alarm system maintenance with alarm barrier.
7 cl, 1 dwg
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