FIELD: measuring equipment.
SUBSTANCE: invention relates to measuring equipment using optical fiber, namely to fiber-optic security detectors, as well as to products, methods and means related to fiber-optic security detectors and their aspects. The claimed case of a dynamic fiber-optic sensor, made with the possibility of non-rigid accommodation of a sensitive element of the sensor, is formed by a coil of optical fibers and a splitter, outputs of which are closed between each other by the mentioned coil and form a closed loop forming a reflection signal. Moreover, the splitter is made with the possibility of connection to a transport part of the fiber-optic security detector, wherein the coil is non-rigidly placed in the case in such a way that oscillations of the sensor case are transmitted to all coil fibers.
EFFECT: elimination of the need for using electrical energy for the operation of a dynamic fiber-optic sensor, as well as implementation by the invention of its purpose.
5 cl, 12 dwg
