Microscan Quadrus EZ Manual de usuario descargar pdf (Pagina 223)

Quadrus EZ Reader User’s Manual 9-15

Camera Setup

CMOS Image Sensor

Configures the operation of the CMOS image

sensor. Typically these parameters will be

obtained during the calibration process, and

do not need to be modified directly by the user.

Note that the Quadrus EZ has one of two

types of image sensors, CCD or CMOS. Even

though some of the parameters between the

sensors are similar, they are configured independently with different configuration commands.

Therefore, the user needs to know which sensor type is installed in the Quadrus EZ. To

find the sensor type, send <op,10>. The reader will reply with a status report that includes

the message: “SENSOR=CCD” or “SENSOR=CMOS.”

Shutter Speed (CMOS)

Gain (CMOS)

Usage:

Faster shutter speeds reduce blurring in faster applications.

Slower shutter speeds are useful in slower and lower contrast applications.

Definition:

Shutter speed is the time, in fractions of a second, that the CMOS sensor is

exposed to light. For very short shutter times, additional external lighting

may be required.

Serial Cmd: <K541,shutter speed,gain,contrast,offset>

Default: 250 (1/250 second)

Options: 50 to 50,000

Usage: Can be used to adjust pixel gray scale values for readability.

Definition:

Controls the amount of energy applied to the pixel gray scale values, prior

to output. This value can vary depending on lighting conditions and shutter

speed.

Serial Cmd: <K541,shutter speed,gain,contrast,offset>

Default: 10

Options: 0 to 63

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Microscan Quadrus EZ Manual de usuario Pagina 223