SPECTRAL LINES AS FREQUENCY STANDARDS
SPECTRAL LINES AS FREQUENCY STANDARDS
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谱线作为频率标准
DOI：
10.1111/j.1749-6632.1952.tb26600.x
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发表时间：
1952
影响因子：
5.2
通讯作者：
Harold Lyons
中科院分区：
文献类型：
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作者：
Harold Lyons
作为其在微波频谱范围内发展基本标准精度计划的一部分，国家标准局（NBS）一直在进行一项广泛的计划，调查原子频率和时间标准的可能性。v2原子是指一般意义上的任何原子系统。最乐观地认为，该计划的最终目标是在物理科学中引入频率和时间的原子标准，如果可行的话。这也可以被认为是为所有物理科学单位引入原子标准的更广泛计划的一部分。虽然设计准确可靠的频率和时间标准所涉及的问题有些不同，但这两个主题将一起处理，因为时钟可以用作频率标准，而频率标准本身不会读取时间。对国家统计局有关频率和时间计划的一些项目的现状进行了调查。
As part of its program for the development of precision in primary standards in the microwave region of the spectrum, the National Bureau of Standards (NBS) has been engaged in a broad program investigating the possibilities of atomic frequency and time standards.*v2 By atomic is meant any atomic system in the general sense. The ultimate goal of the program, considered most optimistically, would be the introduction of atomic standards for frequency and time in the physical sciences if this is feasible. This can also be considered as part of a broader program for the introduction of atomic standards for all of the units of physical ~cience.~ Although the problems involved in the design of accurate and reliable frequency and time standards are somewhat different, these two topics will be dealt with together since a clock can be used as a frequency standard while a frequency standard by itself will not read time. A survey of the status of some of the NBS projects relating to the frequency and time program will be given.