Working Principle:
The working principle of a parallel beam load cell is based on the concept of strain gauge technology. When an external force or load is applied to the load cell, the beam or platform deflects, causing the strain gauges attached to it to deform. This deformation results in a change in electrical resistance, as strain gauges are designed to vary their resistance when stretched or compressed. This change in resistance is then converted into an electrical signal proportional to the applied load using Wheatstone bridge circuitry. The electrical signal is typically amplified and conditioned by additional electronics to provide an accurate representation of the applied force or weight.