Grip strength evolution and/or reinforcement device for e.g. tennis player, has electric energy storage for supplying power to pressure measuring systems and wireless communication system of electronic circuits

摘要

The device has electronic circuits (1) integrated in a hollow volume (2b) of a spherical autonomous object (2). The electronic circuits include a pressure measuring system i.e. analog pressure sensor (1a), connected with a wireless communication system (1b) through an analog-to-digital converter (1d). An electric energy storage i.e. electric battery (1c), supplies power to the pressure measuring systems and the wireless communication system. The autonomous object is made of a flexible material (2a).