Film-type pressure sensor E.G. for article of footwear

摘要

A film-type pressure sensor includes a carrier structure including a first carrier film, a second carrier film and a spacer film arranged between the first and second carrier films, where one or more pressure-sensing cells are disposed in the carrier structure, each of which includes an electrode arrangement for producing an impedance change in response to a compressive force, an electrical interface is provided for mechanically and electrically connecting the pressure sensor to an evaluation circuit, where some terminals of the interface are connected with the electrode arrangements of the cells so as to allow them to be read out, such that one or more electrical components interconnect at least two of the terminals in pairs so as to form a combination of terminal pair impedances that represents coded information relating to the pressure sensor.

主权项

1. Film-type pressure sensor comprising:
a carrier structure comprising a first carrier film, a second carrier film and a spacer film arranged between said first and second carrier films, one or more pressure-sensing cells disposed in said carrier structure, in which said spacer has an opening allowing flexure of said first and/or said second carrier film toward each other under a compressive force, and in which an electrode arrangement is disposed for producing an impedance change in response to said compressive force; and an electrical interface for mechanically and electrically connecting said film-type pressure sensor to an evaluation circuit, said electrical interface comprising a plurality of cell-specific terminals, at least some of which are electrically connected to said the electrode arrangements of said pressure-sensing cells so as to allow them to be read out when said evaluation circuit is connected to said film-type pressure sensor; wherein said film-type pressure sensor comprises one or more electrical components that forms an interconnection pattern between one of the said plurality of cell-specific terminals and another additional terminal so as to form a combination of terminal pair impedances, wherein said evaluation circuit detects said combination of terminal pair impedances that represents uniquely coded identifying information, that would identify a particular type of said film-type pressure sensor, when said evaluation circuit is connected to said film-type pressure sensor, and wherein the coded identifying information is readable by said evaluation circuit before triggering said film-type pressure sensor.