What is a compression load cell?
A compression load cell is a force transducer which measures compression or compressive forces. In practice, these are mainly weight forces. The applied load leads to an elastic deformation of the measuring body, which is detected via strain gauges and converted into an electrical signal. This enables weights and forces to be determined with high precision.
How does a compression load cell work?
Under load, the electrical resistance of the strain gauges changes. This change is measured by the evaluation electronics and converted into a proportional force or weight value. This technology makes compression load cells ideal for very high loads and industrial measuring requirements.
What is the difference between compression load cells and tension load cells?
Compression load cells detect forces that press on or compress the sensor. Tension load cells, on the other hand, measure forces that pull on the sensor. Both sensor types are usually based on strain gauge technology, but differ in mechanical design and force transmission. Which variant is suitable depends on the mounting situation and the direction of the acting force.
What accuracy classes are there for compression load cells?
Many compression load cells meet the accuracy classes per OIML R60, which are relevant, for example, for legal-for-trade industrial scales. The classes define measurement accuracy, reproducibility and minimum division values. This ensures that the load cell measures reliably and in accordance with standards, even under high loads.
Where are compression load cells used?
Compression load cells are used wherever high loads need to be measured safely and precisely. Typical applications include:
- Weighing of silos, tanks and process vessels
- Hopper scales and heavy-duty scales
- Truck scales and vehicle weighing
- Plant construction and machine building
- Steel industry and process industry
- Automated production systems