Maximum Allowed Frame Rate; Using Basler Pylon To Check The Maximum Allowed Frame Rate - Basler GIGE VISION ace acA640-100gm/gc Manual

Area scan cameras

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Image Acquisition Control

6.12 Maximum Allowed Frame Rate

In general, the maximum allowed acquisition frame rate on any camera can be limited by three

factors:

The amount of time it takes to read an acquired frame out of the imaging sensor and into the

camera's frame buffer. This time varies depending on the height of the frame. Frames with a

smaller height take less time to read out of the sensor. The frame height is determined by the

camera's AOI Height settings.

The exposure time for acquired frames. If you use very long exposure times, you can acquire

fewer frames per second.

The amount of time that it takes to transmit an acquired frame from the camera to your host

PC. The amount of time needed to transmit a frame depends on the bandwidth assigned to the

camera.

On acA750-30 cameras, an additional factor is involved:

The Field Output Mode parameter setting. If a camera is set for the Field 0 or the Field 1 mode,

it will be able to output approximately twice as many frames as it could if the camera was set

for the Concatenated New Fields or the Deinterlaced New Fields output mode.

There are two ways that you can determine the maximum allowed acquisition frame rate with your

current camera settings:

You can use the online frame rate calculator found in the Support section of the

Basler website:

You can use Basler pylon to read the value of the camera's Resulting Frame Rate Abs

parameter (see below).

For more information about AOI Height settings, see Section 10.5 on

For more information about the field output modes on acA750-30 cameras, see Section 6.6 on

page

72.

6.12.1 Using Basler pylon to Check the Maximum

You can use the pylon API to read the current value of the Resulting Frame Rate Abs parameter

from within your application software. The following code snippet illustrates using the API to get the

parameter value:

// Get the resulting frame rate

double resultingFps = Camera.ResultingFrameRateAbs.GetValue();

The Resulting Frame Rate Abs parameter takes all camera settings that can influence the frame

rate into account and indicates the maximum allowed frame rate given the current settings.

You can also use the Basler pylon Viewer application to easily read the parameter.

For more information about the pylon Viewer, see Section 3.1 on

Arrow.com.

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Allowed Frame Rate

page

152.

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19.

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Maximum Allowed Frame Rate; Using Basler Pylon To Check The Maximum Allowed Frame Rate - Basler GIGE VISION ace acA640-100gm/gc Manual

6.12 Maximum Allowed Frame Rate

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