A load cell is a force sensing module having a metal structure, with strain gauges mounted in precise locations on the structure. It is easy to use with voltage rating of 5-10V. The force applied to the load cell changes in the output voltage signal directly. Load cells are designed to measure force in one direction. They will often measure force in other directions, but the sensor sensitivity will be different.
Load cells are used in weight, jewellery and kitchen scales. It is usually mounted by bolting down through the screw hole or gluing the end of the load cell where the wires are attached, and applying force on the other end, that is, where the direction of the arrow is. This end is left in floating state.
