LMI Gocator 2000 Family, User Manual

Page: 78 / 194

Measurement • 78 Gocator 2000 Family
Height
A height measurement determines the difference along the z-axis between two feature points. The
measurement value can be compared with minimum and maximum constraints to yield a decision.
To create or edit a Height measurement:
1
Add a new Height measurement or select an existing Height measurement.
2 Adjust the feature point areas.
A Height measurement requires two feature points.
3 Specify the types of feature points to be detected.
Refer to the Feature Points section (page 70) in this chapter for information on point types.
4 Provide minimum and maximum constraints for a decision.
Refer to the Decisions section (page 74) in this chapter for more information on decisions.
The difference can be expressed as an absolute or signed result (Feature 2 [F2] Z value – Feature 1 [F1]
Z value).
To select absolute or signed result
1 Check the Absolute box to select absolute difference.