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1. (WO2018078197) TRACTION FORCE SENSOR FOR RECORDING AND MONITORING PHYSICAL EXERCISE

Pub. No.:    WO/2018/078197    International Application No.:    PCT/ES2017/000142
Publication Date: Fri May 04 01:59:59 CEST 2018 International Filing Date: Thu Oct 26 01:59:59 CEST 2017
IPC: G01L 1/22
Applicants: ESTEL, S.L.
Inventors: BRAGOS BARDIA, Ramón
RAMOS CASTRO, Juan José
RODRIGUEZ JIMENEZ, Sergio
MORAS FELIU, Gerars
SUBIRANA CLERIC, Montserrat
Title: TRACTION FORCE SENSOR FOR RECORDING AND MONITORING PHYSICAL EXERCISE
Abstract:
The traction force sensor comprises at least one strain gauge (3) in a tension piece (1) comprising a central rectilinear segment (11) and two folds (10) at an angle, significantly thicker than the central rectilinear segment. The strain gauge (3) is arranged in said central rectilinear segment in such a manner that a traction force on the fastening ends (12) of the tension piece (1) results in a U-shaped buckling (4) of the central rectilinear segment. The invention also comprises a processing module (5) connected to the strain gauge (3), adapted to detect and process as data the elastic deformations caused in the central rectilinear segment by the longitudinal stresses generated by traction on the fastening ends (12) of the tension piece. The invention allows a portable and low cost wireless sensor to be produced.