vägningsmätare

A vägningsmätare, often translated as load cell or weighing transducer, is a type of transducer that converts a force into a measurable electrical signal. This force is typically the weight of an object. Load cells are essential components in many weighing systems, from small digital scales to large industrial weighbridges.

The fundamental principle behind a load cell is the use of strain gauges. These are thin, flexible strips of conductive material that change their electrical resistance when stretched or compressed. When a weight is applied to the load cell, it deforms slightly, causing the strain gauges attached to it to also deform. This change in strain alters the resistance of the strain gauges, which in turn affects the electrical current passing through them.

This change in electrical resistance is then amplified and processed by electronic circuitry to produce a digital readout of the weight. Load cells come in various designs, each suited for different applications and weight ranges. Common types include beam, canister, S-type, and pancake load cells. The accuracy and capacity of a load cell depend on its construction, materials, and the number of strain gauges used. They are widely used in manufacturing, logistics, agriculture, and scientific research for precise measurement and control.