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AW00104701000 Image Acquisition Control

Basler scout light GigE 101

Exposure Time Control with the Frame Start Trigger On

When the Trigger Mode parameter for the frame start trigger is set to on and the Trigger Source

parameter is set to software, the exposure time for each frame acquisition is determined by the

camera’s exposure time parameters.

When the Trigger Mode parameter is set to on and the Trigger Source parameter is set to input

line 1, the exposure time for each frame acquisition can be controlled with the exposure time

parameters or it can be controlled by manipulating the hardware trigger signal.

For more information about controlling exposure time when using a software trigger, see

Section 9.4.4 on page 95.

For more information about controlling exposure time when using a hardware trigger, see

Section 9.4.5 on page 96.

For more information about exposure time parameters, see Section 9.7 on page 121.

9.5.1.3 Setting the Frame Start Trigger Mode and Related Parameters

You can set the Trigger Mode and related parameter values for the frame start trigger from within

your application software by using the Basler pylon API. If your settings make it necessary, you can

also set the Trigger Source parameter.

The following code snippet illustrates using the API to set the Trigger Mode for the frame start

trigger to on and the Trigger Source to input line 1:

// Select the frame start trigger

Camera.TriggerSelector.SetValue( TriggerSelector_FrameStart );

// Set the mode for the selected trigger

Camera.TriggerMode.SetValue( TriggerMode_On );

// Set the source for the selected trigger

Camera.TriggerSource.SetValue ( TriggerSource_Line1 );

The following code snippet illustrates using the API to set the Acquisition Mode to continuous, the

Trigger Mode to off, and the Acquisition Frame Rate to 60:

// Set the acquisition mode to continuous frame

Camera.AcquisitionMode.SetValue( AcquisitionMode_Continuous );

// Select the frame start trigger

Camera.TriggerSelector.SetValue( TriggerSelector_FrameStart );

// Set the mode for the selected trigger

Camera.TriggerMode.SetValue( TriggerMode_Off );

// Set the exposure time

Camera.ExposureTimeAbs.SetValue( 3000 );

// Enable the acquisition frame rate parameter and set the frame rate. (Enabling

// the acquisition frame rate parameter allows the camera to control the frame

// rate internally.)

Camera.AcquisitionFrameRateEnable.SetValue( true );

Camera.AcquisitionFrameRateAbs.SetValue( 60.0 );

// Start frame capture

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Basler SCOUT LIGHT Manual do Utilizador Página 111