Patent ID: 9157815
Filing Date: 2015-10-13
Classification: G01D,G01L,G06F

Abstract:
1. An apparatus for sensing pressure using an optical waveguide sensor, the apparatus comprising: a light source radiating light; an optical waveguide panel totally reflecting and transmitting the radiated light in which an upper part of the optical waveguide panel has a plurality of light transmitting regions, wherein a first portion of the radiated light is emitted to an outside through the plurality of light transmitting regions, and a second portion of the radiated light is totally reflected and transmitted, and wherein an amount of the second portion of the radiated light is changed in accordance with a pressure applied to at least one of the plurality of light transmitting regions; a detector detecting the amount of the second portion of the radiated light; and an analyzer determining a magnitude of the pressure and a location where the pressure is applied based on the detected amount of the second portion of the radiated light.