Exposure Control; Exposure Mode - IAI SP-20000C-USB User Manual

7.2.

Exposure control

This function sets how to expose the object.
7.2.1

Exposure Mode

The exposure mode can be selected from the following three ways.
Table – 24
Exposure Mode setting
OFF
Timed
Trigger Width
In the trigger operation, Exposure Mode must be set other than OFF and Trigger Mode of Frame Start
must be ON.
If Exposure Mode is set at Timed, the exposure operation can be selected as follows by setting Trigger
Option
Table – 25 Trigger option
Trigger Option setting
OFF
PIV
The operation resulting from the combination of Exposure Mode, Trigger Option and Trigger Mode is as
follows.
Table – 26 The combination of Exposure Mode, Trigger Option and Trigger Mode
Exposure Mode
OFF
Timed
Trigger Width
Table – 27 Associated GenICam register information
SP-20000M-USB / SP-20000C-USB
Exposure operation
No exposure control (Self-running operation)
Exposure operation at the value set in Exposure Time. Setting value is usec unit.
・If Trigger Mode setting is OFF, the camera is in self-running operation.
・If Trigger Mode setting is ON, the exposure operation depends on the setting of
Trigger Option.
The exposure is controlled by the pulse width of the external trigger.
・Trigger Mode is forced to ON.
Exposure operation
Timed (EPS) mode
PIV (Particle Image Velocimetry) mode
Trigger
Option
N/A
OFF
PIV
N/A
- 44 -
Trigger
Mode
(Frame Start)
Self-running operaion
N/A Exposure control by Exposure Time
is not possible
Self-running operaion
OFF Exposure control by Exposure Time
is not possible
Timed (EPS) Operation
ON Exposure can be controlled by
Exposure Time
PIV Operation
Forced to ON Exposure can be controlled by
Exposure Time
Exposure is controlled by the pulse
Forced to ON
width of the external trigger
Operation