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在NCG冷阴极规管的研制工作中,精确测量真空度低于10~(-8)帕下的放电性能和起辉性能是一个关键的问题。利用了一台按国际标准ISO设计制造的比对系统满足了测量要求.首先介绍了比对测试系统的特点以及测试原理,然后根据测试结果给出了规管在压力下限的放电曲线和起辉性能.最后应用磁场和电场相匹配的原理,改进冷阴极规管的磁结构,使规管成本降低了30%—40%,有利于推广应用.
In the development of NCG cold cathode gauge, it is a key issue to accurately measure the discharge performance and the performance of the under-vacuum of less than 10 ~ (-8) Pa. The use of a system designed and manufactured according to international standards ISO to meet the measurement requirements of the system.First of all, introduced the characteristics of the test system and the test principle, and then according to the test results are given in the lower limit of the discharge curve and the K Finally, the principle of matching magnetic field and electric field is applied to improve the magnetic structure of the cold cathode gauge tube, reducing the regulatory cost by 30% -40%, which is beneficial to popularization and application.