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Column with
Column
stress concentration
Hollow column
Flexure
Figure 12.20 Elastic load cell
designs.
y
y
Normal stress distribution
Normal stress
Shear stress distribution
Applied
load
Strain
gauge
locations
Bending beam load cell
Shear stress
Figure 12.21 Bending beam load cell and stress distributions.
526 Chapter 12 Mechatronics: Sensors, Actuators, and Controls