Method and system for determining surface tension using the bubble pressure method
AssigneeMiele & Cie. KG
InventorsRainer Bicker, Michael Finke, Helge Mueller
Life of this patent
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Abstract
A method for determining a surface tension of a solution in a container using a bubble pressure process includes introducing a gas volume flow into the solution using a capillary. A time-dependent pressure profile of the gas volume flow is determined during bubble formation using a pressure sensor. The gas volume flow is interrupted toward the end of the determination process by closing the capillary over the entire cross section of the capillary over at least a part of the length of the capillary.
Claims16
A method for determining a surface tension of a solution in a container using a bubble pressure process, the method comprising:
- introducing a gas volume flow into the solution using a capillary;
- determining a time-dependent pressure profile of the gas volume flow during a bubble formation using a pressure sensor;
- interrupting the gas volume flow during a latter portion of the determining by closing the capillary over an entire cross section of the capillary over at least a part of a length of the capillary.
A system for determining a surface tension of a solution in a container using a bubble pressure process, the system comprising:
- a capillary configured to introduce a gas volume flow into the solution;
- a pressure sensor configured to determine a time-dependent pressure profile of the gas volume flow during a bubble formation;
- a closing device for the capillary, the closing device being movable from a measuring position to a locking position, wherein in the locking position the capillary is sealed from the solution in a liquid-tight manner.
Dependencies are inferred from the claim text.