FIELD: measuring technology.
SUBSTANCE: invention relates to measuring technology, namely to fiber-optic security detectors. For the signaling method using a security fiber-optic detector with a linear part with combined interferometers: the placement of sensitive elements of the linear part is provided, which is a branched optical circuit, which is placed on the elements of the fence; a laser pulse is formed at the input of the linear part and returned pulses, which are reflection signals, are received at the input of the transceiver device along the same path, but in the opposite direction, wherein the linear part contains an optical scheme of combined interferometers containing closed and open circuits, a closed circuit represents a Mach-Zehnder interferometer, and an open circuit represents a Michelson interferometer, while registering a change in the value of the sum of the reflection signals corresponding to the magnitude and nature of the elastic deformation of the sensitive elements.
EFFECT: ensuring uniform sensitivity of the sensitive part of the security fiber-optic detector; increasing the reliability of the security fiber-optic detector.
10 cl, 12 dwg
