NEW INSTRUMENT FOR MEASURING SURFACE PRESSURE

被引:5
作者
STENBERG, M [1 ]
LOFGREN, H [1 ]
机构
[1] GOTHENBURG UNIV,DEPT STRUCT CHEM,S-41345 GOTHENBURG,SWEDEN
关键词
D O I
10.1063/1.1135991
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
A new instrument for surface pressure measurements using a floating-foil technique has been constructed. The instrument makes use of a probe in the form of a thin foil suspended at the gas/liquid or liquid/liquid interface tension. The present instrument has a dynamic range of 0.1-70 mN/m and a sensitivity better than 0.1 mN/m. Its speed of response is 50 ms but much faster measurements are possible. Measurements on behenic acid and cholesterol films on water and on a cerebroside film at a heptane/water interface are presented.
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收藏
页码:1098 / 1100
页数:3
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