Wide‐Range Thermal Convection Manometer
作者:
Juan A. McMillan,
Toma´s Buch,
期刊:
Review of Scientific Instruments
(AIP Available online 1957)
卷期:
Volume 28,
issue 11
页码: 881-882
ISSN:0034-6748
年代: 1957
DOI:10.1063/1.1715754
出版商: AIP
数据来源: AIP
摘要:
A pressure gauge covering both the Pirani and liquid manometer ranges, easily adaptable for continuous recording, has been devised and successfully operated. In the pressure range of the Pirani gauge, the working principle is that of the thermal conductivity at low pressures; at higher pressures, on the contrary, a convection stream takes place, which depends on pressure and determines temperature variations in the filament. Experimental results give maximum sensitivity in the range 0.5–5 torr and a reasonable sensitivity for pressures up to one atmosphere.
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