RU2633026C1 - Hydroacoustic system of great performance - Google Patents

Abstract

FIELD: physics.

SUBSTANCE: method is implemented by using information from the modular antennas and the information receiving and processing system of the fiber optic cable, the connecting blocks of which are made in the form of cable glands.

EFFECT: converts the electrical signal to optical and vice versa.

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Description

A long-range hydroacoustic antenna is known, described in RF patent No. 2324200, in which N hydroacoustic modules are connected in series through a certain distance using an underwater electric cable, each of which is two hydroacoustic antennas connected to the equipment for collecting and converting from opposite sides of this equipment along the underwater cable .

Such a connection of hydroacoustic modules and a submarine cable is made in place before the installation of hydroacoustic antennas.

For systems of great length (of the order of thousands of kilometers), a large amount of information signals comes from the equipment for collecting and converting into a cable. The large length of the electric cable leads to significant energy losses of the transmitted signals. In addition, the large length of the cable located at the bottom of the sea increases the likelihood of a violation of the tightness of the structure (injury) of the cable, which is associated with the need for repair.

Thus, in order to improve the operability of long-range sonar systems, it is necessary to solve the following problems:

- transfer of large amounts of information by cable;

- a significant reduction in the installation time of large systems;

- reduction of energy losses associated with the transmission of information over an extended cable;

- improving the maintainability of sonar systems associated with the replacement of an injured cable.

These problems are solved by the invention.

Technical results are achieved through the use of the modular principle of constructing an extended sonar system. The system includes underwater modules (antennas and devices) that have only electrical inputs and outputs, and modules for high-speed long-distance transmission of information on underwater fiber optic cores and transmission of high-voltage power supply via copper cores (underwater fiber optic cables with remote power cores ) At the ends of the optical cable, connecting blocks are made in the form of pressure glands providing the conversion of an electrical signal into an optical one and vice versa. The design of the connecting blocks of the optical cable allows you to quickly and repeatedly, if necessary, to mount and dismantle the optical cables between the modules of hydroacoustic antennas. All modules have high factory readiness, therefore, when installing the system, only the simplest operations of switching electrical contacts are performed. Due to the use of the same type of pressure glands, the work is greatly simplified and the time for installation and dismantling of cables is reduced.

The design of the connecting block of the optical cable is shown in the figure (Fig. 1). The following notation is used in the figure: 1 - system (device) for receiving and processing information; 2 - sleeve; 3 - tight rope connection; 4 - fiber optic cable; 5 - optoelectronic converter.

The system operates as follows. Hydroacoustic receiving antennas, integrated into modules by information reception and processing systems, receive hydroacoustic signals, which are converted into electrical signals and fed to information reception and processing systems. Further, the electrical signals in the hermetic inputs of the optical cables are converted into optical signals, which are transmitted through the optical cable to the coastal equipment, where in the hermetic inputs the optical signals are inverted.

Thus, the technical results of the invention are:

- an increase in the amount of information transmitted to shore equipment;

- reduction of energy losses of information signals transmitted to shore equipment;

- improving the maintainability of sonar systems associated with the replacement of the cable;

- a significant reduction in the time of installation and dismantling of cables.

Claims (1)

A hydro-acoustic system containing hydro-acoustic antennas integrated in modules, information receiving and processing devices, and a flexible underwater long cable, characterized in that the system uses underwater fiber-optic cables with remote power conductors, at the ends of which are connecting blocks made in the form of pressure glands, providing the conversion of an electrical signal into an optical signal and vice versa, while the fastening of the connecting blocks is carried out by a yoke connection.

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