Linearity and Scanning Resolution in Laser Displacement Sensors

This document explains the concepts of linearity and scanning resolution as critical factors in measurement errors for laser displacement sensors, detailing how deviations from an ideal proportional relationship between target displacement and measured value are quantified. It provides technical know-how on fixing errors, discusses lens aberration as a key contributor to linearity differences, and emphasizes the importance of knowing an instrument's actual measuring ability beyond its specifications.