Forciot Oy

Tampere University Foundation, Sr.

Clothing Plus Oy

Jukka Vanhala

Pekka Iso-Ketola

Petri Järvinen

Mikko Turunen

Akseli Reho

Jarmo Heittokangas

Matti Mäntysalo

Elina Välimäki

Mikko Tasanen

Petri Jarvinen

The invention relates to sensor () for use as a pressure and/or a force sensor. The sensor () comprises a elastic and stretchable layer () with material having a first Young's modulus (Y) and a first yield strain (&#x3b5;); at least a first stretchable electrode () and a second stretchable electrode () attached to the elastic and stretchable layer () and arranged a first distance (d, d) apart from each other; a flexible foil () having a second Young's modulus (Y); and electrically conductive wiring () attached to the flexible foil (). At least a part of the electrically conductive wiring () is coupled to the stretchable electrodes () in an electrically conductive manner; the first yield strain (&#x3b5;) is at least 10 percent; the first Young's modulus (Y) is less than the second Young's modulus (Y).

Capacitance force and/or pressure sensor having stretchable electrodes

A stretchable structure comprises or is configured to receive a conductive path and an interface region. The interface region comprises a peripheral line comprising at least one inwardly curved portion, such as an 'inverted teardrop' or a fjord like recess pointing essentially towards the center area of the interface region. The interface region is arranged to receive said stretchable conductive path via said inwardly curved portion of said peripheral line of said interface region. In this way the interface region minimizes strains or other twisting or stretching forces directed to the conductor entering into the opening of the inwardly curved portion of the interface region.

Stretchable structure comprising a conductive path and a method for manufacturing the structure

The invention relates to sensor for use as a pressure and/or a force sensor. The sensor comprises an elastic and stretchable layer with material having a first Young's modulus and a first yield strain, at least a first stretchable electrode and a second stretchable electrode attached to the elastic and stretchable layer and arranged a first distance apart from each other, a flexible foil having a second Young's modulus, and electrically conductive wiring attached to the flexible foil. At least a part of the electrically conductive wiring is coupled to the stretchable electrodes in an electrically conductive manner, the first yield strain is at least 10 per cent; the first Young's modulus is less than the second Young's modulus, and the thickness of the flexible foil is at most 0.5 mm.

Capacitive force and/or pressure sensor having stretchable electrodes

Growing community of inventors

Pirkkala, Finland

Jukka Vanhala