US 12,298,128 B2
Multi-axis differential strain sensor
Mark William Ronay, Portland, OR (US); Trevor Antonio Rivera, Portland, OR (US); Jorge E. Carbo, Jr., Portland, OR (US); and Michael Adventure Hopkins, Portland, OR (US)
Assigned to Liquid Wire Inc., Portland, OR (US)
Appl. No. 18/001,443
Filed by Liquid Wire Inc., Portland, OR (US)
PCT Filed Jun. 11, 2021, PCT No. PCT/US2021/070696
§ 371(c)(1), (2) Date Dec. 9, 2022,
PCT Pub. No. WO2021/253050, PCT Pub. Date Dec. 16, 2021.
Claims priority of provisional application 63/038,547, filed on Jun. 12, 2020.
Prior Publication US 2023/0221105 A1, Jul. 13, 2023
Int. Cl. G01B 7/16 (2006.01)
CPC G01B 7/18 (2013.01) 20 Claims
OG exemplary drawing
 
1. A flexible differential strain sensor, comprising:
a deformable substrate having a first axis and a second axis different than the first axis;
a first sensing element, comprising conductive gel, arranged to sense strain in the deformable substrate along the first axis;
a second sensing element, comprising conductive gel, having a first portion arranged to sense strain in the deformable substrate along the first axis and a second portion arranged to sense strain in the deformable substrate along the second axis;
wherein the second sensing element is arranged to cancel at least a portion of the stimulus sensed by the first sensing element in the along the first axis.