LMI Technologies Gocator 2130, User Manual, Page: 52 / 652

Gocator Line Profile Sensors: User Manual
How Gocator Works • 52
Z Resolution
Z Resolution gives an indication of the smallest detectable height difference at each point, or how
accurately height on a target can be measured. Variability of height measurements at any given moment,
in each individual 3D point, with the target at a fixed position, limits Z resolution. This variability is
caused by camera and sensor electronics.
Like X resolution, Z resolution is better closer to the sensor. This is reflected in the Gocator data sheet as
the two numbers quoted for Z resolution.
Z Linearity
Z linearity is the difference between the actual distance to the target and the measured distance to the
target, throughout the measurement range. Z linearity gives an indication of the sensor's ability to
measure absolute distance.