There are many factors that influence the accuracy of a weighing system. Assuming that external factors are minimized or eliminated, the most important factor is the appropriate selection of the load cell for a given weighing application. This discussion covers the key load-cell specifications that are important to ensuring that you achieve optimal weighing accuracy for your application.

Nonlinearity

This specification is typically given in terms of a percentage of rated output or percentage of full scale. It represents the cell’s measurement error over the entire output range. Looking at a calibration curve for the load cell, the nonlinearity is the amount that the curve deviates from a straight line.

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