User`s guide

SHIFT SPEEDS
SDK SECTION 6
Page 58
SECTION 6 - SHIFT SPEEDS
The Andor system allows you to set the speed at which charge is shifted horizontally and vertically on the
CCD.
The horizontal and vertical shift speeds are set via the SetHSSpeed and SetVSSpeed functions respectively.
The vertical shift speed is the speed at which each row on the CCD is shifted vertically into the Shift
Register. The number of vertical shift speeds and their actual values are determined via the
GetNumberVSSpeeds and GetVSSpeed functions.
The horizontal shift speed is the speed at which the charge in the shift register is shifted horizontally. It is also
the speed at which the signal is digitized via the on board A/D converters. The number of horizontal shift
speeds and their actual values are determined via the GetNumberHSSpeeds and GetHSSpeed functions.
The horizontal shift speed is dependant on the CCD type and the model of plug-in card in the system. The
shift speeds are always returned fastest first.
The following example retrieves the number of horizontal speeds allowed and their actual values in
microseconds. Finally, it selects the fastest speed as follows:
GetNumberHSSpeeds(0, 0, &a); //first A-D, request data speeds for (I = 0; I < a;I++)
GetHSSpeed(0, 0, I, &speed[I]);
SetHSSpeed(0, 0); /* Fastest speed */