Measuring and testing – Liquid analysis or analysis of the suspension of solids in a... – Vapor pressure
Patent
1990-01-10
1991-03-26
Williams, Hezron E.
Measuring and testing
Liquid analysis or analysis of the suspension of solids in a...
Vapor pressure
G01N 1302
Patent
active
050019236
ABSTRACT:
A process to measure the moisture permeability between a liquid and a solid body is described, which is of importance for determining the suitability of material combinations. In the course of the process, the oscillation behavior of an oscillating system is changed when a solid body or test object is immersed in a liquid by the interaction of surface tension forces between the surface of the solid body or test object and the fluid. The change in the oscillation behavior or the transfer of oscillation energy between the solid object and the fluid is then used as an indicator of the strength of the surface tension force.
REFERENCES:
patent: 4754640 (1988-07-01), Fitzgerald et al.
Journal of Physics E. Scientific Instruments, vol. 17, 1984, pp. 569-572.
Schmitt-Thomas, Becker, Groll; "Lotbarkeitsprufung an SMDs mit der Benetzungswaage", Elecktronik Produktion & Pruftechnik, Oct. 1987, pp. 48-54.
Jillek, Wolf; "Eine Rechnergestutzte Lotbarkeitsprufung nach dem Prinzip der Benetzungswaage", Elektronik Produktion & Pruftechnik, Apr. 1983, pp. 149-152.
Roskos Joseph W.
Williams Hezron E.
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