一、电子管内残余气体压强测量的一般原理 电子管内因真空度不高,会引起一系列问题,例如管子噪声增加、工作电压降低、阴极寿命缩短等等。因此把电子管内残余气体压强测量出来,作为分析管子性能和合理确定管子制造工艺规范有重要意义。 运用普通热阴极电离真空计工作原理和方法 First, the general principle of measuring the residual gas pressure in the tube vacuum tube is not high, will cause a series of problems, such as increased tube noise, lower operating voltage, shortened cathode life and so on. Therefore, to measure the residual gas pressure in the tube, it is of great significance to analyze the tube performance and to properly determine the tube manufacturing process specification. Use common hot cathode ionization vacuum gauge working principle and method