chromasens allPIXA, Руководство пользователя

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CD40047_R04_allPIXA_User-Manual.docx 133
Line period time
Name
Name Line period time
Function
Sets the value for line period in microseconds to the camera.
Unit
Float
Step:
0,001
Linear
Dependency Is only available if the Use line period check box has been selected.
Notes Value must be greater than Integration time
Camera: Value CST
Lower limit
2k > 16.45 µs
4k > 29 µs
7.3k > 47.1 µs
Upper limit All 12.36 ms
11.2 Gain settings
Analog coarse gain
This parameter describes the CDS gain parameter of the camera which takes effect in step (1)
of analog image processing (
section 4.6.1
“
Analog / digital image processing
”
; Figure 9 ).
Name
Name Analog coarse gain
Function Pre-amplification after CCD and before analog gaining.
Channels
Red, Green, Blue
Front; Rear
Unit
-3 dB;0 dB;+3 dB; +6 dB
Log.
Dependency None
Notes Use this parameter for a rough adjustment of gaining at the first step.
Camera: Value CST:
Lower limit all -3 dB
0 dB
3 dB
Upper limit
All 6 dB
Analog coarse gain is a pre-amplification factor (basically to adapt the output signal of the CCD
to the input of the main analog amplifier).The output range of the CCD is greater than the input
range of the AFE (analog front-end). So with this factor the possible output range can be
adjusted. With this “adjustable two step amplification” it is possible to adjust the allPIXA for a
wide range of applications.
Line period Line period Line period
Int. time Int. time Int. time