The invention relates to a flexible, resilient capacitive sensor suitable for large-scale manufacturing. The sensor comprises a dielectric, an electrically conductive layer on the first side of the dielectric layer, an electrically conductive layer on a second side of the dielectric layer, and a capacitance...http://www.google.com.au/patents/US7578195?utm_source=gb-gplus-sharePatent US7578195 - Capacitive sensor