The matrix sensors can similarly be used to create multi-touch, multi-force smart surfaces for buttons, sliders and gesture input. These can even be behind metal overlays, leather, fabrics, wood, plastics, etc. Peratech provides with a comprehensive library of filters, algorithms, firmware and embedded Graphical User Interfaces to create complete 3D HMI force sensing solutions. Bespoke software and engineering can also be provided if required to ensure the perfect solution for a customer’s project.
QTC sensors are opening up a new world of possibilities with innovative, pressure-based HMIs. QTC materials change from being an almost perfect insulator to becoming increasingly conductive in proportion to the amount of force applied. The materials are very resilient with predictable deformation and recovery so that changes in resistance due to even the slightest amount of pressure on the QTC material is both predictable and repeatable over more than a million cycles. New force-sensing formulations from Peratech include a transparent version of QTC.
These force-sensing formulations provide the highest dynamic range of multi-touch pressure-sensing in a thin over-display to create more natural, smarter, safer interactions between a product and user.