In order to gain the initiative in the sea, and detect changes in distance to find within our waters, sonar workers abroad did a lot of work. Swaying float array sonar systems, sonar systems by dozens of sub-phase by a connector into a large linear array, each sub-sonar to different acoustic signals transmitted by cable to the host computer on the ship, cosmau for this application We developed a special waterproof slip ring.

This slip ring installation in winch retractable on the boat, before and after two wiring systems, connecting one end of the streamer, the other end of the cable is connected to the computer. When at sea retractable cord array, rotated so that the line through slip ring array of acting freely, using this slip ring not only ensures the mechanical aspects of the retractable cable, and ensures the electrical connection system. Also this slip ring has a modular structure, you can increase or decrease according to the number of circuits within a certain range to suit different needs.

Key performance indicators:
Electrical parts: four coaxial and eight twisted pair
Contact resistance ≤10mΩ
Insulation resistance> 100MΩ (500V)
Current: 1A
Resistance to hydrostatic pressure: 5.25MPa
Loss of contact <6db
Cycle: >100 millions

Brief design principles
Housing options. Slip ring used in seawater, corrosion should be considered first, so that direct contact with the sea part of the slip ring housing, flanges, etc., must be resistant to seawater corrosion of stainless steel.
Contact material. In order to ensure good electrical contact properties, use low-zinc brass machined conductive ring, and gold-plated surface; Precious metal brush is used to make materials like elastic brush.
Insulation Materials. By comparison, the choice of products to meet the mechanical and electrical properties, good resistance to environmental performance, a wide range of temperature polysulfone material.
A sealing material. In order to ensure the slip ring at 5.25MPa pressure radial seal, we chose the excellent performance of water-resistant neoprene seals processing.

This waterproof marine slip ring, having rotating flexible, long-life contact with radial waterproof, anti-corrosion and other characteristics of the product development, in many areas it has wide application scenario, the product can also be used for communication systems and undersea exploration oil exploration in the line array.