Patent ID: 6407350
Filing Date: 2002-06-18
Classification: B60N,B60R,G01L

Abstract:
A weight sensor for sensing an applied weight comprising:a) a first and second outer substrate, each having a first and second end and each having an inner surface and an outer surface; b) at least one inner substrate, having a first and second end, the inner substrate located between the inner surfaces of the first and second outer substrates; c) at least one fastener fixedly attaching the first and second outer substrates to the inner substrate; d) a plurality of strain gauge resistors, located on the outer surfaces of the first and second outer substrates, for generating an electrical signal in response to the substrate being stressed by the applied weight, the electrical signal changing as a function of the applied weight; and e) a neckdown region located in the first and second outer substrate, between the first and second ends for concentrating the applied weight, the strain gauge resistors located in the neckdown region.