Shipboard radar slip ring
Radar is an electronic device that uses electromagnetic waves to detect objects. It emits electromagnetic waves to illuminate the target and receives its echoes. From this, information such as the distance, distance change rate (radial velocity), azimuth and altitude of the electromagnetic wave from the target to the transmitter can be obtained, which has a wide range of applications in the military field. Of the three coordinates (azimuth, elevation and distance) of the target position measured by the radar, two coordinates (azimuth and elevation) are directly related to the performance of the antenna. Therefore, for radar equipment, antenna performance is more important than other electronic equipment such as communication equipment. With the continuous progress of modern science and technology, radar technology has higher and higher requirements on the transmission frequency between fixed parts and rotating parts, and often needs to transmit medium and high frequency signals of tens of megahertz or hundreds of megahertz. megahertz. The conductive slip ring is a key component of the radar antenna, which makes the rotating part and the fixed part of the radar form a continuous connection between power and signal. High frequency slip rings are specially designed to transmit high frequency signals up to 2 GHz.
A radar antenna slip ring is a mechanical and electrical element that transmits current, data signals from stationary equipment to rotating equipment. Also known as conductive slip ring, brush, slip ring, rotating electrical joint or electric rotator. Slip rings can be used in electromechanical systems that rotate continuously without limit and need to transmit current or data signals. Slip rings are also known as turntable electronic connections, current collectors, commutators or turntables. Slip rings can improve system performance by simplifying operation and eliminating fragile wires. The system performance is improved, the system structure is simplified, and the wire sprain during rotation is avoided. Can be widely used in safety, factory automation, electric power, finance, instrumentation, chemical industry, metallurgy, medical, aviation, military, shipbuilding, transportation, construction and other mechanical and electrical equipment.
The main purpose of radar antennas is to better receive and transmit data and are usually placed outdoors. It is directly affected by factors such as wind, rain, snow, ice, dust, solar radiation, salt spray, etc., which reduces the performance of the antenna and shortens the life of the antenna. For this purpose, many ground and shipboard radar antennas are equipped with radomes. Airborne radars must be equipped with radomes to improve aerodynamic performance because they operate on high-speed platforms. The radome is made of a material with high electromagnetic wave transmittance. It can protect the antenna from harsh natural environment, reduce the wear, corrosion and aging of the antenna, make the antenna performance stable and reliable, and prolong the service life. Therefore, the radar antenna slip ring is required to have durability in harsh environments. It can transmit large-capacity data and signals without leakage and electromagnetic interference. It can transmit network applications over tens of kilometers over long distances. It has the characteristics of ultra-low attenuation loss and ultra-low transmission fluctuation. Due to the high maintenance cost of radar slip rings, the design of radar antenna slip rings must meet the requirements of long life, maintenance-free and lubrication-free.
The integrated optical fiber slip ring produced by JINPAT can meet the requirements of various types of vehicle, aircraft and ship radar systems, and can meet the professional requirements of the military industry such as cold protection and earthquake resistance. The confluence ring developed by JINPAT has been successfully applied to various domestic military weather radars, shipboard radars, and vehicle-mounted radars. With excellent quality, it successfully meets the needs of various harsh working conditions and has won an excellent reputation.