National Instruments NI Vision NI 17xx 用户手册

end of the exposure pulse. The end of an exposure starts the image readout 
from the sensor.

The maximum trigger rate is determined by the maximum frame rate 
for your configuration. Refer to the Maximum Frame Rate section for 
information about the factors that affect the maximum frame rate.

Frame rate is the inverse of the frame period. The frame period is the time 
from the start of exposure on one frame to the start of exposure on the next 
frame, as shown in Figure 5-2.

Figure 5-2.  Frame Period

The frame period is affected by the following factors:

•

Partial scan mode, as described in the 

 section of 

•

Binning mode, as described in the 

 section of Chapter 3, 

•

Exposure time, as described in the 

 section of this chapter

•

Lighting mode, as described in Chapter 4, 

•

Trigger delay, as described in the 

 section of this 

chapter

1

Frame  Period

Trigger

Exposure

Image Readout

1