Basler A202k User Manual download pdf (Page 11)

Supplement

Basler A202k High Gain 5

DRAFT

4 Digital Shift Changes

4.1 Additional Digital Shift Setting Available

On standard cameras, the digital shift feature has “shift once” and “shift twice” settings available.

On high gain cameras, a “shift three times” setting has been added. The description of the digital

shift feature that appears below includes the additional setting.

Digital Shift On High Gain Cameras

The “digital shift” feature lets you change the group of bits that is output from each ADC. Using

the digital shift feature will effectively multiply the output of the camera by 2 times, 4 times or 8

times. Digital shift works differently depending on whether the camera is set for 10 bit output or for

8 bit output. The digital shift description that starts on page 5 applies when the camera is operating

in 10 bit output mode. The description that starts on page 7 applies when the camera is operating

in 8 bit output mode.

Page 9 describes precautions that you must observe to effectively use the digital shift feature.

You can set digital shift using either the Camera Configuration Tool Plus or binary commands.

With the configuration tool, you use the Digital Shift setting in the Output group to set digital shift.

With binary commands, you use the Digital Shift command.

4.1.1 Digital Shift With 10 Bit Output

No Shift

The A202k High Gain camera uses 10 bit ADCs to

digitize the output from the CCD sensor. When the

camera is operating in 10 bit output mode with no

digital shift, it simply transmits the 10 bits that are

output from each ADC.

Shift Once

When the camera is set to shift once, the output

from the camera will include bit 8 through bit 0 from

each ADC along with a zero as an LSB.

The result of shifting once is that the output of the

camera is effectively doubled. For example,

assume that the camera is set for no shift, that it is

viewing a uniform white target, and that under these

conditions the reading for the brightest pixel is 100.

If you changed the digital shift setting to shift once,

the reading would increase to 200.

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 25 26

No comments

Basler A202k User Manual Page 11