Bending
During a measurement, weight acts on the load cell’s metal spring element and causes elastic deformation. This strain (positive or negative) is converted into an electrical signal by a strain gauge (SG) that is installed on the spring element. The simplest type of load cell is a bending beam with a strain gauge. Often, the (mandatory) basic components, i.e. spring element and strain gauge, are complemented with additional elements (housing, sealing elements, etc.) protecting the strain gauge elements.
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