Patent ID: 9561400
Date: 2017-02-07
CPC Classifications: A63B

Claim:
1. Sensor unit for monitoring of physical training with a rubber band comprising: (a) a housing enclosing: wherein the means for measuring the tension is an integral part of the attachment means, and measured by means of one or more detectors that are sensitive to, or coupled to the mechanical deformation in one or more dimensions of the rubber band, said means selected from the group consisting of: (b) an electronic circuit comprising two or more electrical conductors in a structure completely or partially based on measuring their mutual capacity as a function of the deformation of the rubber band; (c) magnetic coupling between two or more elements in a magnetic circuit, in a construction where the magnetic coupling is a function of the mechanical deformation of the rubber band; and (d) transmission of electromagnetic radiation in a structure where the transmission of the radiation from one or more sources is a function of the mechanical deformation of the rubber band.