Design of shear beam load cell
The shear beam load cell has a variety of shapes and sizes to suit a wide range of applications. Generally, they all have a relatively low vertical profile relative to their length. This is in contrast to some cylindrical compression load cells, which usually have the opposite ratio, narrower than taller.
The design of the shear beam load cell makes certain parts of the load cell body bend or bend in response to the applied load. They tend to provide large amounts of strain or bending at relatively low forces, which is suitable for lower capacity applications.
The strain gage placed on the convex surface will stretch, and the strain gage placed on the concave surface will shrink. This means that there are always two surfaces subject to equal and opposite strain, which facilitates the realization of a full-bridge circuit or temperature compensation.
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