Patch time has nothing at all to do with Integration time.
Taken from the User Manual:
Integration Time: sets the amount of time the probe will integrate light reception over, if applicable. Some probes will ignore these setting, other will use them as time settings, others will select from probe pre-sets. In general, the longer the Integration Time the more accurate the reading, but the slower the profiling. But, setting too long a time can cause the probe to over saturate... You can think of integration time as being like exposure time in a camera.
With plasma profiling there is a variation with respect to integration time. Due to plasmas PWM (Pulse Width Modulation) the optimum integration time is calculated as an integer multiple of the PWM frequency of the corresponding display.
So, as an example, in PWM-based Display that has a frequency of around 180Hz, the integration time should be an integer multiple, i.e., n*(1/180) so if n were 500 (and n can be any large integer value) then we obtain the following:
Integration time 500*1/180 = 2.78 seconds.
The more accurate the integration time, the better the results.
Steve Shaw
Mob Boss at Light Illusion