FLIR X6570sc series, Руководство пользователя

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Radiometric measurement 8
Note
• An NUC update is recommended any time an adjustment is made to either the frame
rate or the integration time, regardless of the integration mode.
• The IWR mode is not available in all camera models.
8.5.2 The ITR process
As seen in Figure 8.3, the frame generation process begins with a frame synchronization
(Frame Sync). The camera then integrates the set amount of time, goes through a fixed
dead time, transmits data, goes through a second fixed dead time, and then is ready to
start the process over again. The figure shows that the camera first completes the inte-
gration process and then reads the data out, hence the term “integrate then read.”
Figure 8.3 The ITR frame generation process.
All timings for the frame generation process are based on a 20 MHz clock, yielding a res-
olution of 50 ns. The minimum integration time for the FLIR X6570sc is 10 µs.
8.5.2.1 Maximum achievable frame rate in ITR—base mode
Table 8.1 Maximum frame rate (in Hz) versus image size (detector mode: ITR/base/integration time = 10
µs)
Number of points
Num-
ber of
lines 640 576 512 448 384 320 256 192 160
512 233 258 289 328 380 450 552 715 838
448 266 294 329 374 432 512 628 811 950
384 309 342 383 434 501 593 727 938 1097
320 369 408 456 517 597 706 863 1111 1298
256 458 506 565 640 738 871 1063 1364 1588
224 520 575 642 726 837 987 1202 1538 1788
192 603 665 742 840 966 1138 1383 1764 2045
160 716 790 880 995 1143 1343 1628 2067 2389
128 882 972 1082 1220 1399 1639 1979 2497 2873
96 1147 1262 1402 1577 1802 2102 2522 3151 3601
64 1641 1799 1992 2230 2532 2930 3476 4271 4823
56 1839 2014 2226 2487 2817 3250 3838 4688 5271
48 2092 2287 2522 2811 3175 3648 4286 5194 5810
40 2424 2645 2909 3233 3637 4158 4851 5823 6471
32 2882 3136 3437 3803 4257 4833 5589 6626 7303
24 3555 3850 4199 4618 5130 5770 6591 7685 8380
16 4636 4987 5396 5878 6455 7157 8031 9147 9830
8 6661 7076 7546 8082 8701 9423 10 275 11 296 11 887
1 10 785 11 170 11 584 12 030 12 512 13 034 13 601 14 220 14 551
#T810204; r. AA/43079/43091; en-US 37