Patent ID: 8160823
Filing Date: 2012-04-17
Classification: G01D,G01L,G06F

Abstract:
1. A contact pressure and position detecting device comprising: a first sensing layer comprising a plurality of first pipes which are parallel and against each other, each first pipe being made of flexible material with a gas sealed therein, each first pipe comprising a first pressure sensor received therein for generating a first electrical signal according to the gas pressure in the first pipe; a second sensing layer located on the first sensing layer, the second sensing layer comprising a plurality of second pipes which are parallel and against each other and substantially perpendicular to the plurality of first pipes, each second pipe being made of flexible material with a gas sealed therein, each second pipe comprising a second pressure sensor received therein for generating a second electrical signal according to the gas pressure in the second pipe; and a processor electrically connected with each of the first pressure sensors of the first pipes and each of the second pressure sensors of the second pipes, the processor being configured for comparing the first electrical signals generated by the first pressure sensors with a first threshold value to judge which first pipe/pipes are pressed, and comparing the second electrical signals generated by the second pressure sensors with a second threshold value to judge which second pipe/pipes are pressed, the processor further obtaining the contact position on the detecting device according to the pressed first pipes and second pipes.