US 11,913,147 B2
Textile sensor for the detection of liquids and temperature, and method of making same
Riccardo Marchesi, Vaglia (IT)
Assigned to KNITRONIX S.R.L., Florence (IT)
Appl. No. 17/638,319
Filed by KNITRONIX S.R.L., Florence (IT)
PCT Filed Aug. 26, 2020, PCT No. PCT/IB2020/057954
§ 371(c)(1), (2) Date Feb. 25, 2022,
PCT Pub. No. WO2021/038454, PCT Pub. Date Mar. 4, 2021.
Claims priority of application No. 102019000015051 (IT), filed on Aug. 26, 2019.
Prior Publication US 2022/0307166 A1, Sep. 29, 2022
Int. Cl. D04B 1/12 (2006.01); A61F 5/48 (2006.01)
CPC D04B 1/12 (2013.01) [A61F 5/48 (2013.01); D10B 2401/02 (2013.01); D10B 2403/02431 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A textile device for detecting liquids comprising:
a matrix fabric obtained by knitting;
a first non-insulated conductive wire knitted with said matrix fabric;
a second non-insulated conductive wire knitted with said matrix fabric;
a source of electric energy connected to said non-insulated conductive wires in order to create a first electric circuit and to have a potential difference between said non-insulated conductive wires;
an electrical resistance measuring system configured to measure the electric resistance R in said first electric circuit in such a way that, when said non-insulated conductive wires electrically connect by means of a liquid, said electrical resistance measuring system measures a variation of electric resistance R in said first electric circuit;
wherein at least one insulated conductive wire is provided connected to a source of electric energy in order to create a second electric circuit;
wherein said insulated conductive wire is co-knitted with at least one of said non-insulated conductive wires; and
said electrical resistance measuring system is arranged to measure the electric resistance R in said second electric circuit in such a way that, since said electric resistance R is function of the temperature T, when a variation of temperature T occurs at said matrix fabric, said electrical resistance measuring system measures a variation of electric resistance R in said second electric circuit.