Patent ID: 9588030
Date: 2017-03-07
CPC Classifications: A01G,G01N

Claim:
1. A sensor for evaluating at least one of a tension, potential or activity of a liquid of a sample, comprising: two plates, wherein the two plates comprise an upper plate and a lower plate, the upper plate and the lower plate being statically disposed to each other such as to form a dihedral structure, the dihedral structure having a fixed dihedral angle (α) between the upper plate and the lower plate, the sensor further comprising, an edge of the two plates located at a vertex end of the two plates, a junction between the two plates defining an opening extending from the edge to an internal space cooperatively defined between the two plates, and a position of a meniscus of the liquid being readable via the upper plate, wherein the sensor is configured to have a single and permanent magnitude for the fixed dihedral angle (α) for reading the position of the meniscus of the liquid at an orthogonal distance from the edge, after the position of the meniscus achieves balance, and for calculating, on the basis of the orthogonal distance, at least one of the tension, potential or activity of the liquid of the sample.