MEMS MICROTENSIOMETER
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United States of America Patent
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Aug 29, 2017
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Jun 14, 2013
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Abstract
A device for measuring a chemical potential of a fluid in a plant tissue includes a cavity disposed within a sensor body as a liquid reservoir. The cavity is configured for containing therein a liquid, and the cavity including at least one opening. At least two porous membrane layers are positioned at least in part over the at least one opening of the cavity for selectively allowing water transfer between the plant fluid and the liquid in the cavity. At least one pressure sensor is configured for detecting changes in pressure of the liquid in the cavity. The changes are related to a chemical potential of the fluid in the plant tissue.
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