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ALLIED Vision Technologies Pearleye P-030 LWIR User Manual

Page 42

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Basic parameters and commands

Pearleye Technical Manual V2.3.0

42

T = Time for one frame-out (Pearleye P-030 LWIR: 41.6 ms)

N1 = Number of data sets (max. 32)

N2 = Number of integrated images (max. 64)

If the camera is exposed to unsteady operating conditions it might be an advan-
tage that the automatic data set selection regularly starts on its own. If

k is

not set to 0 the automatic search starts at approx. each

k * 256 images. At a

frame rate of e.g. 40 images per second the chronological resolution of the

k

value is approx. 6.4 seconds.

Example

The automatic correction data selection shall always be started approx. every
1200 seconds (20 minutes): 1200 sec. / 6.4 sec. per count ≈ 188 = 0xBC.

>

k=BC [CR]

Choose data set

N1 * 2 * T

2662 ms

1331 ms (N1=16)

Close shutter

5 * T

208 ms

208 ms

Integrate images

(N2 + 1) * T 2704 ms

2704 ms

Open shutter

0 * T

0 ms

0 ms

Calculate statistics

2 * T

83 ms

83 ms

Total time

5.95s

4.45 s

Caution

The electromechanical shutter is not designed to be held
closed permanently. Reopen it soon after closing.

GigE feature name (CameraSpecialFeatures)

Feature Visibility Description

AutoCalibrationInterval

Expert

Setup the automatic calibra-
tion interval.

0=Calibrate one-time,

1 to 65535=Calibrate every
k*256 frames.

(k= command)

Table 14: GigE feature: AutoCalibrationInterval

Description

Time

Max. Time

Typical time for a Pearleye P-030 LWIR

Table 13: Pearleye P-030 LWIR: time required by command k=0

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