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Indicates that China began to build their own of TDRSS. Tracking and data relay satellites for its relatively large coverage and forwarding earth station in low Earth orbit spacecraft tracking, monitoring and control signals and low-orbit spacecraft sent back to the ground data, image, voice information in real time continuous relay and other advantages, is becoming increasingly important to the development of space technology project. This article not only made on the TDRSS overview of the development and basic theory research, and do a more in-depth research around the the TDRSS future development trends, mainly for the future development of key technology is the satellite laser communication, TDRSS, the United States and Europe and Japan, interoperability and networking programs. Finally, this article summarizes, and a simple outlook for the future development of TDRSS. 1 Watt Laser The purchase plan preparation of laser pointers should be done quickly.
Overview of the development of data relay satellite. Data Relay Satellite is a special class of communication satellites, constitute the core of the space-based monitoring and control communication network equipment. It is a major breakthrough in the 20th century, TT & C communications technology. Because of its prominent features and unique advantages, a fundamental solution to the high coverage of the monitoring and control, communications, and also to solve the technical problems of high-speed data transmission and multi-target monitoring and control communication, the long arc of a variety of spacecraft continuous service, high economic benefits, therefore much of the space powers attention since its inception, the United States, the Soviet Union / Russia, Europe, and Japan have established or under construction in the TDRSS system. April 4, 1983, the U.S. space shuttle Challenger launched the first Tracking and Data Relay "(the TDRS) satellite. Zumba DVD The manufacturer can arrange the suitable and reasonable purchase activity of laser pointers.
Laser space controlled and time controlled well, the degrees of freedom for the processing of the material of the object, shape, size and processing environment, combining with computer numerical control technology, can constitute an efficient automated processing equipment. Widely used in important sectors such as automotive, electronics, appliances, aviation, metallurgy, machinery manufacturing, improve labor productivity, product quality, automated, non-polluting, reduce material consumption plays an important role. Through continuous research and development, the laser has been widely used in machining, welding, surface engineering, non-metallic materials and carbide processing and other aspects. The laser cladding cladding material on the substrate surface, and using high-energy density laser beam irradiation heating. And use laser pointers to expose the match or black material.
The thin layer of cladding material and substrate surface melting and rapid solidification, and its combination of Tim materials for the metallurgical cladding layer Tian is thus formed on the substrate surface. Laser cladding has the following advantages: high energy density of the laser beam, heating speed, a smaller heat affected the substrate, causing a small deformation of the workpiece; the control laser input energy, can limit the dilution effect of the substrate at very low the extent (usually 2% to 8%), thus maintaining the excellent performance of the original cladding materials; between the laser cladding layer and the substrate with a solid (metallurgical bonding), and the cladding layer organization small. These features make the laser cladding technology over the past decade to be a high priority in terms of surface modification of materials. The red laser beam light transmitted by laser pointers is clearly visible.