In the paper, a theoretical analysis is given for the ordinary helium mass spectrometermethod used to detect the "single seal" leakage rate of each two seals in a serial two-seal pneumatic system.
从理论上讨论了用常规氦质谱仪检漏方法测定两密封件串联密封的气路系统各密封件“单密封”泄漏率的问题。
2
Based on experience, a fast adjustment method of spectrometer is introduced, and the principle of half and half adjustment and its operation gist are analyzed theoretically.
从经验出发介绍分光计的一种快速调节法，并从理论角度分析了分光计各半调整的原理及操作要领。
3
In addition, the ion energy of HPIB is also measured with Thomson spectrometer and time of flight method and the results agree with those measured with a pile of thin films.