Surface dilation modulus detecting instrument for liq. - measures changes in surface tension and area as meniscus shape is varied

A. Prins

Surface dilation modulus detecting instrument for liq. - measures changes in surface tension and area as meniscus shape is varied

A. Prins (Inventor)

Research output: Patent

Abstract

A Wilhelmy plate (26), supported from a strain gauge (27), is brought into contact with the surface of the liquid in a trough (20). A partially submerged glass ring (21) is then suspended around the Wilhelmy plate. The ring is counterbalanced by a partially submerged object (22) which compensates for the change in volume and keeps the overall liquid level constant as the ring is moved up and down sinusoidally by a drive mechanism (23). The position of the ring and the strain gauge output are monitored (25,25;28). The modulus is calculated (29,30) by multiplying the change in surface tension by the change in area. @(10pp Dwg.No.6/6).

Original language	English
Patent number	NL8902861
Publication status	Published - 20 Nov 1989

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title = "Surface dilation modulus detecting instrument for liq. - measures changes in surface tension and area as meniscus shape is varied",

abstract = "A Wilhelmy plate (26), supported from a strain gauge (27), is brought into contact with the surface of the liquid in a trough (20). A partially submerged glass ring (21) is then suspended around the Wilhelmy plate. The ring is counterbalanced by a partially submerged object (22) which compensates for the change in volume and keeps the overall liquid level constant as the ring is moved up and down sinusoidally by a drive mechanism (23). The position of the ring and the strain gauge output are monitored (25,25;28). The modulus is calculated (29,30) by multiplying the change in surface tension by the change in area. @(10pp Dwg.No.6/6).",

author = "A. Prins",

year = "1989",

month = nov,

day = "20",

language = "English",

type = "Patent",

note = "NL8902861",

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TY - PAT

T1 - Surface dilation modulus detecting instrument for liq. - measures changes in surface tension and area as meniscus shape is varied

AU - Prins, A.

PY - 1989/11/20

Y1 - 1989/11/20

N2 - A Wilhelmy plate (26), supported from a strain gauge (27), is brought into contact with the surface of the liquid in a trough (20). A partially submerged glass ring (21) is then suspended around the Wilhelmy plate. The ring is counterbalanced by a partially submerged object (22) which compensates for the change in volume and keeps the overall liquid level constant as the ring is moved up and down sinusoidally by a drive mechanism (23). The position of the ring and the strain gauge output are monitored (25,25;28). The modulus is calculated (29,30) by multiplying the change in surface tension by the change in area. @(10pp Dwg.No.6/6).

AB - A Wilhelmy plate (26), supported from a strain gauge (27), is brought into contact with the surface of the liquid in a trough (20). A partially submerged glass ring (21) is then suspended around the Wilhelmy plate. The ring is counterbalanced by a partially submerged object (22) which compensates for the change in volume and keeps the overall liquid level constant as the ring is moved up and down sinusoidally by a drive mechanism (23). The position of the ring and the strain gauge output are monitored (25,25;28). The modulus is calculated (29,30) by multiplying the change in surface tension by the change in area. @(10pp Dwg.No.6/6).

M3 - Patent

M1 - NL8902861

ER -

Surface dilation modulus detecting instrument for liq. - measures changes in surface tension and area as meniscus shape is varied

Abstract

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