Riftek RF627 Series, Руководство пользователя

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RF627, RF627Smart [Revision 2.1.2] 20.09.2021
Laser Scanners
23
Parameter Factory value Description
·
Column EDR – The expansion of the dynamic range is achieved
due to different exposure times for the even and odd columns of
the CMOS sensor. For odd columns, the exposure time is lower.
It is used in the control of complex objects containing areas with
different reflectivity. Exposure time reduction is determined by
the
Interleaved exposure divider coefficient.
·
Piecewise linear EDR – The expansion of the dynamic range is
achieved through the use of a piecewise linear response of the
CMOS sensor.
Interleaved
exposure divider 5 Exposure time reduction coefficient for odd columns of the CMOS
sensor. It determines how many times the exposure time for odd
columns is reduced relative to the main exposure time. It is
available only when the
Column EDR mode is enabled.
To configure the required parameter, use the slider, or enter the required value in
the field and press Enter (valid for standard operation mode, as well as for DS and ROI
modes). The maximum possible value of the parameter is shown next to the field.
18.2. Laser parameters
Parameters:
Parameter Factory value Description
Laser ON Turning on/off the laser.
Laser output
power, % 10 Laser output power level. Range of values: 0...100%. Note: The
laser output power is adjustable only in manual mode.
18.3. Image quality settings
The intensity of the reflected light entering the scanner depends on the properties of
the surface of the object under control. In turn, the value of electric signal generated by the
CMOS image sensor of the scanner depends on the time of accumulation of radiation
(exposure time). Therefore, in order to obtain optimal signal, it is necessary to set optimal
exposure time.
Since the exposure time cannot exceed the frame duration, it is necessary to set the
required frame rate ( FPS parameter) before setting the exposure time.
18.3.1. Exposure time and laser power
Exposure time and laser output power are set manually based on visual analysis of
the quality of the image obtained from the image sensor, and on analysis of the quality of
the resulting profile (see par.
15. ).
To set the exposure time, use the slider, or enter the required value into the field and
press the Enter key. For convenience, you can select Data format > Raw (the Stream
section of the General tab, see par. 18.5. ). In this case, the Video tab simultaneously
displays a video signal and an extracted profile in the coordinate system of the CMOS
sensor (uncalibrated data).
To enable the autoexposure mode, click Autoexposure . The scanner will
automatically set the optimal exposure time.