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真空陶瓷可变电容器采用陶瓷外壳、真空介质,具有耐压高、工作电流大、品质因素高、性能稳定可靠,受环境条件影响小等特点。在DF-100A型短波发射机全机装有10只真空陶瓷可变电容器,在发射机射频槽路中的主要起调谐、滤波、调配的作用。本文详细介绍了在DF-100A型短波发射机所用真空陶瓷可变电容器的特点、结构、参数,及在打压试验更换安装使用的注意事项和维护经验。重视和做好真空陶瓷可变电容器在DF-100A型短波发射机的科学使用和维护管理,可以延长真空陶瓷可变电容器的使用寿命,无论对设备的稳定运行还是提高经济效益,都有着非常重要的作用。
Vacuum ceramic variable capacitors using ceramic shell, vacuum medium, with high pressure, current, high quality factor, stable and reliable performance, the impact of environmental conditions and small characteristics. In the DF-100A short-wave transmitters equipped with a total of 10 vacuum ceramic variable capacitors in the transmitter RF tank mainly from the role of tuning, filtering, deployment. This paper introduces in detail the characteristics, structure, parameters of the vacuum ceramic variable capacitors used in the DF-100A short-wave transmitter, as well as the precautions and maintenance experience during the replacement of the pressure test. Pay attention to and make vacuum ceramic variable capacitor The scientific use and maintenance management of the DF-100A shortwave transmitter can prolong the service life of the vacuum ceramic variable capacitor, which is very important for the stable operation of equipment and the improvement of economic benefits Role.