LMI Technologies Gocator 1100 Series, Руководство пользователя, Страница: 72 / 250

Gocator Web Interface • 72 Gocator 1100 & 1300 Series
Laser ranging devices are usually more accurate at the near end of the measurement range. If your
application requires a measurement range that is small relative to the maximum measurement range
of the sensor, mount the sensor such that the active area can be specified at the near end of the
measurement range.
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Exposure determines the duration of camera and laser on-time. Longer exposures can be helpful to
detect laser signals on dark or distant surfaces, but increasing exposure time decreases the maximum
speed. Different target surfaces could require different exposures for optimal results. Gocator sensors
provide two exposure modes for the flexibility needed to scan different types of target surfaces.
Exposure Mode Description
Single Exposure Uses single exposure for all objects. Used when the surface is
uniform and is the same for all targets.
Dynamic Exposure Automatically adjust the exposure after each frame. Used when
the target surface varies between scans.
Video mode enables you to see how the laser appears on the camera and to identify any stray light
or ambient light problems. When exposure is tuned correctly, the laser line should be clearly visible
in the viewer. If it is too dim, increase the exposure value; if it is too bright decrease exposure value.
Under exposure
Laser point is not detected.
Increase the exposure value.
Over exposure
Laser point is too bright.
Decrease the exposure value.
In a dual sensor system, the Main and the Buddy sensor must use the same exposure mode
or the system will fail to start.