DEVICE FOR TRESPASSER'S WARNING SYSTEM Russian patent published in 1996 - IPC

Abstract SU 1834547 A1

FIELD: automatics teleautomatics. SUBSTANCE: invention refers to equipment for trespasser's warning system and can be used to detect penetration of trespasser into controlled territory or room. Device has pickup of current signal, differential current integrator, band-pass filter, amplitude detector, threshold former of alarm signal. Output of pickup of current signal is used as symmetrical one due to presence of differential integrator. EFFECT: enhanced noise immunity and sensitivity and simplified design of device. 2 cl, 1 dwg

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SU 1 834 547 A1

Authors

Silaev E.A.

Dates

1996-04-27—Published

1981-01-14—Filed