The load cell is an element of force measurement in equipment, the principle of which is based on the measurement of deformation. Strain gauges are used in automotive, railway, bunker and crane scales, weighing batchers, etc. Strain gauges are used in practically all modern electronic weighing and dosing systems.
Strain gauges provide high accuracy of measurements, are resistant to the environment, and modern technologies allow to achieve systematization and automation of the entire technological process using equipment with electronic load cells.
Strain gauge are a metal brewed structure, inside of which are resistors with an electrical circuit. The load cell is connected to the body of the weighing batcher or weighing platform, and when the weight changes, the load cell body undergoes deformation, after which the result of deformation is transferred to the strain gauges, and then the mass information is transferred to a weight indicator, where is converted into digits on the screen.
- High accuracy of measurement. Modern strain gauges have really perfect accuracy. The accuracy class of the load cell can be in the range from C1 to C6, in accordance with OIML R 60 standard.
- The most common load cells are sensors of accuracy class C3, which corresponds to a combined error of 0.02%.
- Variety of models. Modern strain gauges have a huge variety of types: S-shaped, bridge, beam, washer, single-point and barrel. The application of a particular type of sensor depends on the purpose and design of the weight system, the location and the method of its installation. Thanks to the huge variety of load cell models, you can choose the equipment that is most suitable for you.
- Reliability of materials. Most load cells are made of aluminum, stainless or alloy steel, which ensures a long service life of the sensors. Waterproof strain gauges, which are made of stainless steel, with protection class IP68, are especially common in the food and fishing industries.