Patent ID: 8096196

Claim:
A load cell, comprising: a cylindrical ring having a first end and a second end; a membrane closing one of said first and second ends of said cylindrical ring and arranged to receive a load or force to be measured, said cylindrical ring and said membrane defining a cavity; a sensor carrier plate arranged in said cavity and coupled to said membrane so that said sensor carrier plate undergoes a displacement upon a deflection of said membrane in response to the load or force to be measured, said sensor carrier plate having an inner portion and an outer portion, said sensor carrier plate being movably coupled to said membrane at a location disposed between said inner portion and said outer portion; at least one outer sensor arranged on said sensor carrier plate in the outer portion sensing the displacement and generating a signal based on the load or force applied to said membrane; and at least one inner sensor arranged on said sensor carrier plate in the inner portion sensing the displacement and generating a signal based changing oppositely with respect to said signal generated by said at least one outer sensor.