Terms

This section introduces important terms in NcStudio V12 CCD Control System.

Focal Length
: Only when Z-axis moves to a fixed position, you can get a clear picture. This position is the focal length.

Magnification
: Image algorithms takes pixel as its unit and machining of the machine takes millimeter as its unit. The proportional relationship between these two units is magnification.
: Example: Magnification is 200, means 200 pixels is equal to 1mm.

Offset between Spindle and CCD
: When the machine machines with CCD, the position of the actual point is obtained according to the position of the picture and the shooting position; however, in actual machining, it is the spindle that is used. The distance between the two is the offset between the spindle and CCD.

Exposure
: It refers to the light amount on the photosensitive element during shooting.
: It is controlled by aperture, shutter and light sensitivity.
: The exposure value means the combination of aperture and shutter. The aperture and shutter are offered by cameras that can give the same exposure.

Gain
: It refers to the camera's gain.
: Along with the camera's Exposure, it is used to compensate light during imaging so as to improve image quality.