Acoustical Interferometer Employed as an Instrument for Measuring Low Absolute Temperatures
作者:
G. Cataland,
H. H. Plumb,
期刊:
The Journal of the Acoustical Society of America
(AIP Available online 1962)
卷期:
Volume 34,
issue 8
页码: 1145-1146
ISSN:0001-4966
年代: 1962
DOI:10.1121/1.1918272
出版商: Acoustical Society of America
数据来源: AIP
摘要:
Values of absolute temperatures at 2° and 20°K have been determined from experimental measurements of the speed of sound as a function of pressure in helium gas. The acoustical interferometer was the instrument employed in the measurements, and the accuracy achieved in the experiment indicates that sonic thermometry at low temperatures may be competitive with other conventional thermometry techniques.
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