What is a load cell and how does it work?
A load cell is a transducer that can convert an applied force (such as the weight of an object) into a measurable electrical signal. Basically, it transforms the mechanical deformation caused by weight into data which can be read and interpreted by a control system. Operation is based on the change in electrical properties of certain materials when subjected to deformation. Most load cells use strain gauges, which are electrical resistors whose resistance changes with elongation or compression.
When an object is placed on the weighing platform, its weight translates into a force that is transmitted to the load cell, causing slight deformation. The strain gauges installed inside the cell, deform with it, altering their electrical resistance. An electronic circuit measures this variation and converts it into an electrical signal proportional to the applied force. Finally, the control system processes the electrical signal and converts it into a weight value, displayed on the weighing machine’s indicator.
Load cells are essential components in automated weighing systems. In particular, in checkweighers they are crucial to weigh products accurately and sort them according to their weight. The accuracy and reliability of these cells are critical to ensuring accurate sorting, optimizing production and minimizing waste. All Nemesis checkweighers are equipped with robust load cells, coated with special protections to prevent possible damage caused by impacts or overloads of the cell, ensuring a long life and maximum accuracy in weighing products.
We'll be happy to follow-up your request within 24 hours