Patent ID: 9482689
Filing Date: 2016-11-01
CPC Classification: G01P

Claim Text:
1. An accelerometer, comprising a main body; a channel positioned in the main body to form a predetermined movement space, the movement space having a planarly rectangular shape; a conductive droplet positioned in the movement space to be moved within the movement space according to an inertial force; a conduction section positioned to correspond to the movement space and brought into contact with the conductive droplet; and a resistance measurement section connected to the conduction section to measure an electrical resistance of the conduction section wherein the conduction section comprises: a first sub-conduction section extended from a first vertex of the rectangular shaped movement space to a central area of the movement space and a second sub-conduction section extended from a second vertex of the rectangular shaped movement space facing the first vertex to the central area of the movement space, the second sub-conduction section separated from the first sub-conduction section, wherein each of the first sub-conduction section and the second sub-conduction section of the conduction section becomes smaller in area as being positioned from each of the first vertex and the second vertex of the movement space to the central area of the movement space wherein the conductive droplet is positioned in a central area of the movement space when there is no force applied to the main body such that the electrical path length of each of the first sub-conduction section and second sub-conduction section is the same, wherein the conductive droplet is moved to one of the first sub-conductive section and second sub-conductive section when there is a force applied to the main body such that the electrical path length of each of the first sub-conduction section and second sub-conduction section is not the same and wherein the resistance measurement section produces an acceleration applied to the main body using an electrical resistance value change of each of the first sub-conduction section and second sub-conduction section because of the electrical path length change of the first sub-conduction section and second sub-conduction section.