论文部分内容阅读
我国电视发射技术起步于50年代后期。70年代开发了中频调制的米波发射机系列。80年代中期完成了国家六五规划“分米波电视发射及差转机系列”的攻关任务。85年底推出了50W至30kW完整的分米波发射机系列。近几年形成了引进国外先进技术与自行研制的新一代米波、分米波发射机同时并存的格局。从电气性能对比,我国自行设计的发射机已达到了国际上80年代的水平,但在整机的系统设计,可靠性稳定性,固态化功率水平,电子管的使用寿命,附属冷却设备及监控监测系
China’s television launch technology started in the late 1950s. In the 1970s, a series of mid-frequency modulated wave transmitters was developed. In the mid-1980s, the task of tackling key tasks of the “Sixtieth Five-Year Plan for Transmitting and Differentiating Units of the Decimeter Television” was completed. The end of 85 introduced 50W to 30kW complete decimeter transmitter series. In recent years, the formation of the introduction of foreign advanced technology and self-developed a new generation of rice, decimeter transmitters co-exist at the same time pattern. From the electrical performance comparison, China’s self-designed transmitter has reached the international level of the 1980s, but in the whole system design, reliability, stability, solid state power level, the life of the tube, cooling and auxiliary monitoring equipment system