LOAD CELL STRUCTURE BASED ON NONLINEAR STRAIN MODEL

摘要

Disclosed is a load cell structure based on a nonlinear strain model. According to an aspect of the present invention, the load cell structure to sense an external force comprises: a fixing unit; an extension unit wherein one end is fixated to the fixing unit and extended from the fixing unit in a direction crossing a direction of the external force; and a plurality of sensors connected to the extension unit wherein the sensors sense deformation of the extension unit caused by the external force, and outputs a sensing value. A range of the external force in order for a first sensor among the plurality of sensors to output a first sensing value is different from a range of the external force in order for the second sensor among the sensors to output a second sensing value. The load cell structure maintains high sensitivity on the external force in a wide range when compared with an existing invention.;COPYRIGHT KIPO 2016