美国、西德和意大利的真空计量  

Vacuum Measurement in U. S. A, West Germany and Italy

作　　者：李旺奎 

机构地区：[1]航空航天部五一○研究所

出　　处：《宇航计测技术》1989年第6期28-36,共9页Journal of Astronautic Metrology and Measurement

摘　　要：近几年来,我们先后访问了美国NBS、西德PTB和意大利IMGC,他们都是国际上重要的计量学研究中心。本文将着重介绍他们的真空计量工作,由此也可以了解到国际真空计量学研究的一些动向和趋势。NBS超声干涉仪水银压力计,为国际最高水平。PTB的超高真空计量标准——分子束法(10^(-10)P_a)为国际最好水平。IMGC建有从10~5～10^(-5)Pa区间的各种标准。The NBS of United States, PTB of West Germany and IMGC of Italy have been visited in recent years. All of them are important metrological research institution in the World. This paper will pay much attention to describe their work on vacuum measurement and show us the new development and trend of international vacuum measurement research. The ultrasonic interference mercury manometer of NBS represents the highest level in the world. The ultrahigh vacuum measurement standard of PTB-the molecular beam method(10^(-10)Pa)is the best one in the world. The various standards in range of 10^(+5)-10^(-5)Pa have been established in IMGC.

关 键 词：真空计量 美国 联邦德国 意大利 

分 类 号：TB935[一般工业技术—计量学]