US 10,890,498 B2
Sensor for a physical feature, preferably comprising a multilayer structure
Gabriel Benech, Paris (FR); Jean-Marc Legrand, Equemauville (FR); Jean-François Feller, Quéven (FR); Mickaël Castro, Lorient (FR); and Tran Than Tung, South Australia (AU)
Assigned to UNIVERSITE DE BRETAGNE SUD, Lorient (FR)
Appl. No. 15/740,407
Filed by UNIVERSITE DE BRETAGNE SUD, Lorient (FR)
PCT Filed Jul. 8, 2016, PCT No. PCT/EP2016/066348
§ 371(c)(1), (2) Date Dec. 28, 2017,
PCT Pub. No. WO2017/009256, PCT Pub. Date Jan. 19, 2017.
Claims priority of application No. 1556583 (FR), filed on Jul. 10, 2015.
Prior Publication US 2018/0195914 A1, Jul. 12, 2018
Int. Cl. G01L 1/22 (2006.01); H01B 1/24 (2006.01); G01D 21/00 (2006.01); G01L 1/18 (2006.01); C08J 5/04 (2006.01); C08K 5/00 (2006.01); C08L 47/00 (2006.01); C08L 75/04 (2006.01); C08L 83/04 (2006.01); B82Y 30/00 (2011.01); H01B 1/22 (2006.01)
CPC G01L 1/2287 (2013.01) [C08J 5/042 (2013.01); C08K 5/0025 (2013.01); C08L 47/00 (2013.01); C08L 75/04 (2013.01); C08L 83/04 (2013.01); G01D 21/00 (2013.01); G01L 1/18 (2013.01); G01L 1/2293 (2013.01); H01B 1/24 (2013.01); B82Y 30/00 (2013.01); C08L 2203/20 (2013.01); H01B 1/22 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A sensor for a physical characteristic, comprising a structure comprising:
at least two electrically conductive layers, each layer comprising nanofillers in a polymer matrix comprising at least one polymer, the amount of nanofillers in each electrically conductive layer being greater than a percolation threshold, the percolation threshold being the minimum amount of nanofillers required to render the polymer matrix conductive,
and electrical connection means,
said structure being thermosetting or thermoplastic or being a crosslinkable elastomer,
characterized in that, when the structure is thermosetting, then the degree of crosslinking thereof is greater than 80%, when the structure is a crosslinkable elastomer, then it comprises an amount of crosslinking agent ranging from 5 mol % to 20 mol % relative to the number of moles of the structure, and
when the structure is thermoplastic, then it has a constant resistivity value.