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通过对示波管(12SJ103Y14)在静态(管子不工作)、动态(管子工作)、加高温(28～87℃)过程中管内气氛分析,得出示波管内所含的主要气体成分加温过程中所放气体成分和放气量。用单一气体充入示波管,研究各种气体对示波管“G差”的影响。找出产生高温“G差”的主要气体是甲烷。实验中还发现惰性气体对管子的阴极具有保护和激活作用,只要所充的气体量适宜,将会使有“G差”管变为无“G差”管。进而制造出充氦(P_(?)=～10~(-2)帕)试验管,证实以上发现的正确性。
Through the analysis of the atmosphere in the tube (12SJ103Y14) in the static state (the tube does not work), the dynamic (tube work) and the high temperature (28 ~ 87 ° C), the main gas component in the tube is heated Put the gas composition and deflated volume. A single gas filled into the oscilloscope to study the impact of various gases on the “G difference” of the oscilloscope. Find out the main gas that produces high temperature “G difference” is methane. It was also found in the experiment that the inert gas had a protective and activating effect on the cathode of the tube and that as long as the proper amount of gas was filled, the “G-poor” tube would be changed to a “G-poor” tube. Further, a test tube filled with helium (P _ (?) = ~ 10 ~ (-2) Pa) was fabricated, confirming the correctness of the above findings.