Patent ID: 9618497
Date: 2017-04-11
CPC Classifications: A61B,G01L,G01N

Claim:
1. A method for determining stiffness of a substrate at a plurality of locations, said method comprising steps of; (a) applying a compressive force to a first location of the substrate via a sensor having a cantilever when said cantilever is in contact with the substrate; (b) detecting a displacement of the cantilever due to said compressive force of step (a); (c) applying a compressive force to a different location of the substrate via a sensor having a cantilever when said cantilever is in contact with the substrate; (d) detecting a displacement of the cantilever due to said compressive force of step (c); (e) determining stiffness of the substrate using the displacements detected in steps (b) and (d).