Fluid sensing devices including fluid absorption and distribution layer
Assignee3M Innovative Properties Company
InventorsNicholas T. Gabriel, Manjiri T. Kshirsagar, Ronald D. Jesme, Justin Tungjunyatham, Hamid R. Mortazavi
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Abstract
Fluid sensing devices including a layer of fluid absorption and distribution material are provided. The layer includes a porous fibrous nonwoven matrix for absorbing fluid from the object to the first major surface of the layer and laterally distributing the absorbed fluid throughout the layer and to a second major surface of the layer opposite the first major surface. Hydration sensors are disposed on the second major surface of the layer to measure a hydration level.
Claims21
A fluid sensing device comprising:
- one or more hydration sensors;
- and
- a layer of fluid absorption and distribution material,
- wherein the one or more hydration sensors is disposed on the layer of fluid absorption and distribution material, and
- wherein the layer of fluid absorption and distribution material comprises a porous fibrous nonwoven matrix.
A method for quantitative fluid sensing comprising:
- providing a layer of fluid absorption and distribution material having a first major surface in fluid communication with an object;
- absorbing fluid from the object to the first major surface of the layer and laterally distributing the absorbed fluid throughout the layer and to a second major surface of the layer opposite the first major surface;
- and
- providing one or more hydration sensors disposed on the second major surface of the layer to measure a hydration level thereof,
- wherein the layer of fluid absorption and distribution material comprises a porous fibrous nonwoven matrix.
(canceled)
Dependencies are inferred from the claim text.