US 12,392,647 B2
Elongated microstructured capacitive sensor
Fabien Sorin, St-Sulpice (CH); William Esposito, Genèva (CH); Véronique Michaud, St-Saphorin-sur-Morges (CH); Chaoqun Dong, Écublens (CH); Baris Çaglar, Lausanne (CH); and Dang Tung Nguyen, Goleta, CA (US)
Assigned to ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL), Lausanne (CH)
Appl. No. 17/638,654
Filed by ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL), Lausanne (CH)
PCT Filed Aug. 26, 2020, PCT No. PCT/IB2020/057957
§ 371(c)(1), (2) Date Feb. 25, 2022,
PCT Pub. No. WO2021/038456, PCT Pub. Date Mar. 4, 2021.
Claims priority of application No. 19193949 (EP), filed on Aug. 27, 2019.
Prior Publication US 2022/0307878 A1, Sep. 29, 2022
Int. Cl. G01F 1/56 (2006.01); B29D 11/00 (2006.01); G01K 7/34 (2006.01); G01L 1/14 (2006.01); G01N 27/22 (2006.01)
CPC G01F 1/56 (2013.01) [B29D 11/00721 (2013.01); G01K 7/34 (2013.01); G01L 1/142 (2013.01); G01N 27/221 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An elongated capacitive sensor, the sensor comprising:
a fibre-like support made of a dielectric material or dielectric composite material; and
a first electrode and a second electrode arranged in the support longitudinally along the support, the first and second electrodes forming together with the support a capacitive sensing element whose capacitance is dependent upon one or more electrical properties of one or more materials inside the support and/or outside the support, and/or is dependent upon a change of materials configuration and associated overall change of one or more electrical properties inside the support and/or outside the support;
wherein the first and second electrodes are embedded in the support such that they are longitudinally fully enclosed by the support, and
wherein the support comprises a fluid channel designed to allow a fluid to flow in the fluid channel, and wherein the fluid channel extends within the support longitudinally from a first support end to a second, opposite support end.