DEVICE FOR TIME SCALE COMPARING Russian patent published in 2018 - IPC G04C11/00 G04G7/00 

FIELD: instrument engineering.

SUBSTANCE: device relates to the field of engineering for comparing and synchronizing time scales of remote objects using an optical fiber communication line connecting objects. Device is made in the form of two components located on objects far from each other, contains two one-step event timers with optical receivers connected to them at the first object. Both of the event timers are connected to the generator of the time scale of this object, and they are connected to a computer connected to the information transfer system. Optical pulse generator is connected to the input of the fiber optic splitter, one output of the splitter connected to the input of the first optical pulse receiver, the second connected to the input/output of the fiber optic circulator. Second optical pulse receiver is connected to the second input/output of the fiber optic circulator and the second event timer. Third circulator input/output is connected by an optical fiber link to a second object, which also includes two one-step event timers with optical pulse receivers connected to them. Both the event timers are connected to the second time scale generation generator, and they are connected to a computer connected to the information transfer system, the optical pulse generator is connected to the input of the fiber optic splitter. One output of the splitter is connected to the input of the first optical pulse receiver, the second one is connected to the input/output of the fiber optic circulator, the second optical pulse receiver is connected to the second input/output of the fiber optic circulator and the second event timer, the third circulator input/output is connected by an optical fiber link to the first object.

EFFECT: technical result consists in the possibility of using one-stop event timers, expansion of the permissible range of distances between objects by eliminating the dead zone caused by the inadmissibility of superimposing transmitted and received pulses in photodetectors.

1 cl, 2 dwg