Redlake MASD 1.4i, Руководство пользователя

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REDLAKE MASD, INC.
3.6 Exposure
This command sets the exposure time of the camera in increments of one millisecond. The
exposure times can be any value between one millisecond and one hundred seconds. This
exposure time setting affects the CONTINUOUS and TRIGGER modes only. The camera
produces the most uniform picture when the exposure time is between 50 and 200 milliseconds.
The maximum frame rate is directly related to exposure time. The maximum frame rate with the
exposure set for 10 milliseconds is 5.9 frames per second. For an exposure time of 500
milliseconds, the fastest frame rate becomes 1.5 frames per second.
Frame Rate = 1/(145 millis exposure time + shutter transition time)
When your application involves low light levels and a subject that is not moving, exposure times
of more than one second may be necessary. As you push the exposure time beyond one
second, you may notice that image quality deteriorates. This is caused by sensor dark current
accumulating over time. The CONTROL mode allows you to extend the exposure time beyond
100 seconds, but you should understand that picture quality degrades with the longer exposure
times.
TYPE IN: RESPONSE EXPLANATION
EXE xxxxxx CR-LF Sets the exposure in one millisecond increments
using the argument with a range from 1 to 100000.
EXE? Queries the current Exposure setting.
EXE xxxxxx Means the exposure is set as indicated.
Sample commands with arguments:
EXE 1 Sets the Exposure to one millisecond.
EXE 100000 Sets the Exposure to one hundred thousand milliseconds (100 seconds).
91000050-002 Revision A 3-4 10/01/01