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Standard Ultra High Vacuum System Based on Dynamic Flow Technique
Author(s): 
Pages: 82-84
Year: Issue:  5
Journal: Vacuum Science and Technology

Keyword:  动态流量法 标准装置 超高真空;
Abstract: 研制成功的动态流量法超高真空标准装置是一台用来校准真空规的绝对真空计量标准。装置由校准系统、微流量计系统、抽气系统和计算机控制系统组成。校准系统采用四球结构 ,校准球室直径为50 0mm。极限真空度为 6 5× 10 - 9Pa ,校准范围为 10 - 2 ~ 10 - 7Pa ,不确定度为 3% (10 - 2 ~ 10 - 6 Pa)和10 % (10 - 7Pa)。
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