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A compression load cell is a block that is designed to hold a load at one point to measure the compression. While tension load cells measure the pulling force, compression load cells measure a pushing force along a single axis. Generally, a compression load cell is placed beneath the object that needs measuring.
As mentioned previously, the strain gauge in a compression load cell is deformed when a load is applied, and this deformation is used to produce the measurement.
Depending on the application, compression load cells are used to determine any relative changes in resistance. Using the Wheatstone bridge circuit allows these relative changes to be measured with great accuracy, ensuring reliable results.
Compression load cells are generally made of materials that are resistant to rusting and scratches, as the base plate should be free from any deformity in order to provide precise results. A hardened cover is often used on the base plate to ensure this.
Compression load cells are specifically designed for application where space is limited, and they can be built to be extremely compact. They are also ideal for use for extremely high capacity loads