Event detection system based on dual fiber-optical sensors

Abstract

The invention relates to fiber optics components, in particular to the fields of information-measuring and control systems, and automatic monitoring systems. The essence of the invention is that an event detection system based on dual optical fiber sensors, consisting of an emitter, an optical fiber, a photodetector, a processing unit, a raster placed perpendicular to the optical axis of the optical fiber, consisting of transparent and opaque code elements, between the transmitting and receiving parts of each dual optical fiber sensor optical fibers, and a tip firmly attached to it, according to the invention, in addition to it, an optical separator, Dual fiber-optic sensors connected in parallel via optical splitters and optical fibers, retardation blocks, and mounting supports are included to ensure that the optical axes of the transmitting and receiving parts of the optical fiber coincide during the movement of the raster and the tip firmly attached to it, while the output of the emitter is connected in parallel via optical splitters and optical fibers to the inputs of the dual fiber-optic sensors, whose outputs are connected in parallel to the inputs of the photodetectors, whose outputs are connected in parallel to the inputs of the delay blocks, whose outputs are connected in parallel to the inputs of the processing block.