Teledyne Princeton Instruments NIRvana HS, System Manual

Page: 54 / 107

54 NIRvana HS System Manual Issue 1.0
Readout rate is configured in LightField on the Analog to Digital Conversion expander
via the Speed parameter. See
Figure 8-2 .
Figure 8-2: Typical Analog to Digital Conversion Expander
Using the full camera resolution of 640 x 512, the readout times of the camera are
approximately 31 ms, 8 ms, and 4 ms respectively.
These options and techniques are discussed in this chapter.
8.1.1 Full Frame Readout
In general, Full Frame Readout is the simplest method of reading out acquired data.
Data readout for a frame of data begins when the frame’s exposure cycle has ended.
Similarly, once data readout has been completed, the next exposure cycle begins, and
so on, until the programmed number of frames has been completely acquired and read
out.
When using Full Frame Readout, Frame Rate is always determined by:
t
exp
+ t
ro
Figure 8-3 illustrates the timing diagram for three frames of data being acquired and
read out using Full Frame Readout.
NOTE:
Although the Exposure Time is illustrated as being longer
than Readout Time, the same timing relationship applies for
all relative Exposure/Readout Times.
44
11
-0
16
9
_
0
0
5
2