LMI Gocator 2000 Family, User Manual

Page: 52 / 194

Setup • 52 Gocator 2000 Family
Multiple Exposure
Multiple exposures can be used to increase Gocator’s ability to detect light and dark materials that are in
the field of view simultaneously. Up to 5 exposures can be defined with each set to a different exposure
level. When enabled, the laser profile from each exposure is the combined into a single laser profile
(referred to as the composite profile).
For each exposure the sensor will perform a complete scan at the current frame rate making the effective
frame rate slower. For example, if two exposures are selected then the Gocator speed will be ½ of the
single exposure frame rate. The sensor will perform a complete scan for each external input or encoder
trigger.
To enable multiple exposure:
1
Select Profile Mode.
2 Navigate to the Sensor Panel for the Main or Buddy sensor.
Click the arrow to expand the Sensor Panel if it is collapsed. Use source option to select main or
buddy sensor.
3 Select Multiple.
4 Press the + button to add an exposure step.
Up to a maximum of 5 exposure settings can be added.
5
Set the exposure level to make the Gocator less or more sensitive (as required).
To use the auto-exposure for an exposure step place target material in the field of view and then press
the auto-set button. Repeat this procedure for each exposure step.
When combining the data, the sensor will use profile data that is available from the lowest exposure
step. It is recommended to use larger exposure for higher numbered step.
6 Run the sensor and check that laser profiling is satisfactory.
If not satisfactory, adjust the exposure values.